?_‰’’’’£zyplģŪP* 300SX20 Help2Copyright 1992 Intel Corp. World rights reserved.BrowseButtons ()/&;)z4U‹ģ’v ’v’’’ ‚ ’’’’|CONTEXT]9|CTXOMAP ź|FONTŌč|KWBTREE’š|KWDATA«ź|KWMAPÜš|SYSTEM|TOPICø|TTLBTREE.|bm0ŒAY 0 HW_COMPATIBILITY C:\SX20HELP\compat1.rtf 2 2 ELP\sx20bph.rtf 9 870D153E 0240_BIOS 1 0240_BIOS C:\SX20HELP\sx20bph.rtf 9 12AFD7B2 1010_BIOS 0 1010_BIOS C:\SX20HELP\sx20bios.rtf 1 8B78301B 1020_BIOS 0 1020_BIOS C:\SX20HELP\sx20bios.rtf 2 4408884 1030_BIOS 0 1030_BIOS C:\SX20HELP\sx20bios.rtf 3 CD4C6236 1110_DEC 0 1110_DEC C:\SX20HELP\cert.rtf 1 1A916101 1120_NOVELL 0 1120_NOVELL C:\VELL C:\“ tineSSSRRSSSJumpContextSUJCSUPopupContextSUPCSUJumpIdSSJISSPopupIdSSPISSJumpHashSUPopupHashSUJumpContentsSJumpHelpOnSetContentsSUJumpKeywordSSJKSSSetHelpOnFileSDisableButtonsDBsEnableButtonsEBsContentsSearchBackHistoryPrevNextBrowseButtonsExtInsertMenusssiuInsertMenussuExtInsertItemssssiuInsertItemssssiAppendItemssssExtAbleItemsuEnableItemsEIsDisableItemsDIsCheckItemsCIsUncheckItemsUIsDeleteItemsChangeItemBiää’’’’ ^-’’’’j1å’’’’’’’’jń300SX20 Technical Product Summary - Main MenuĢ €J b€™€”rāUĒ9©żo€‚€‚ƒƒƒƒ‚ƒƒƒƒƒ‚ƒƒ‚‚’300SX20 Technical Product Summary - Main MenuCurrent PBA revision:511893-006300SX20 Help Beta V1.0Current BIOS revision:1.10 33.L0Developed by: AndréCurrent Keyboard controller:1.00 109Cj¹ö#ŗ‡£„ €€’œ€€”rāUĒ9©żo€€‚ćŅ­v@€‰‚ć™lĆż‰‚ćęžØA‰‚ć¾T’‰‚ćŒ°¬Š‰‚ć°éI9‰‚’€@‚’€D’Ž€F”rāUĒ9©żo€€‚ćøĖsĻ€‰‚ćoNĪ扂ćv \ā‰‚ćĀˆ¾²‰‚ć8Ņ=‰‚’€‚‚‚’’’Electronic iPUB:System History Board History MenuBIOS History MenuCertification Letters MenuCompatibility ListOrderable Spare Parts ListTechnical Information:Product Order CodesSystem Feature MenuKnown Issues MenuInstallation and Configuration MenuProduct Specification Menu8€ń8 >€€”rāUĒ9©żo€ƒ‚’Intel Corporation makes no warranty of any kind regarding this material, including, but not limited to, the implied warranties of merchant ability and fitness for a particular purpose. Intel Corporation assumes no responsibility for any errors that may appear in this document. No part of this document maybe copied or reproduced in any form or by any means without prior consent of Intel Corporation. Intel Corporation retains the right to make changes to these specifications at any time, without notice.M¹>1uM’’’’>f 300SX20 System Product CodesRń: D€0€”rāUĒ9©żo€‚€‚’Product Order CodesĮN>Qs#¶€œš7 €€’<€€”rāUĒ9©żo€‚’6€@€”rāUĒ9©żo‚’’’Marketing Order Codes (MOC) 300SX20 Configurations based on product CodeÓl$g#ž€Ųš7 <€€”rāUĒ9©żo€‚’6€€”rāUĒ9©żo‚’’’S300SX202B0300SX-20 with 2MB (80Nsec) memory, (no drives), Floppy and IDE Cables and mounting hardware.ÓlQ÷g#ž€Ųš7 <€€”rāUĒ9©żo€‚’6€€”rāUĒ9©żo‚’’’S300SX202F 300SX-20 with 2MB (80Nsec) memory, TEAC 3.5" 1.44M Floppy, IDE Cables and mounting hardware.³J$Ŗ i#¢€”š7 >€€”rāUĒ9©żo€‚‚’8€$€”rāUĒ9©żo‚‚’’’Obsolete CodesThe Following configurations are no longer available.Ńj÷{ g#ž€Ōš7 <€€”rāUĒ9©żo€‚’6€€”rāUĒ9©żo‚’’’S300SX202I4 300SX-20 with 2MB (80Nsec) memory, TEAC 3.5" 1.44M Floppy, Quantum 40AT hard disk drive.ŃjŖ L g#ž€Ōš7 <€€”rāUĒ9©żo€‚’6€€”rāUĒ9©żo‚’’’S300SX202I8 300SX-20 with 2MB (80Nsec) memory, TEAC 3.5" 1.44M Floppy, Quantum 80AT hard disk drive.ā{ f 8 >€Å€”rāUĒ9©żo€‚‚’The On-board memory shipped with each system consists of two 1Mb x 9 Fast Page mode SIMMs. Qualified SIMM vendors include Texas Instruments, NEC, Matsushita and Toshiba America. A User's Guide is shipped with each system.LL ² 1¹±’’’’² ;E300SX20 System Feature Menut8f & < H€p€”rāUĒ9©żo€‚€‚‚‚’Intel 300SX20 System Feature MenuSystem Features:‰?² Æ J#d€~Ÿ5 "€€ć*Ź*€‰‚’€€€‚’’’386SX CPU20MHz 386SX CPU and 387SX Numeric CO ProcessorŽD& =J#d€ˆŸ5 "€€ć*"hŅ€‰‚’€$€€‚’’’Cache Memory 82385SX Cache Controller and 16KB of Cache SRAM‹DÆ ČG#^€ˆŸ5 "€€ć–3ø?€‰‚’€(€‚’’’System Memory Up to 16MB of on-board 80Nsec DRAM using SIMMs˜N=`J#d€œŸ5 "€€ćøōµå€‰‚’€@€€‚’’’RTC, CMOS RAM and Battery Real Time Clock and battery-backed CMOS RAMFČ @J#d€ŒŸ5 "€€ćļ6”€‰‚’€P€€‚’’’Intel 82343 PC/AT System ControllerVLSI used for PC/AT Control` @f ¤Z`°@J#d€“Ÿ5 "€€ć’)˜€‰‚’€H€€‚’’’Intel 82344 ISA Bus Controller PC/AT ISA Bus Control VLSI and ISA Slot information—M @GAJ#d€šŸ5 "€€ćąµ €‰‚’€*€€‚’’’Video Subsystem WD90C11 Controller, Video Interface, BIOS and Drivers}3°@ÄAJ#d€fŸ5 "€€ć> ‡€‰‚’€ €€‚’’’System BIOSPhoenix Technologies System BIOSCGAQBJ#d€†Ÿ5 "€€ćk‰©€‰‚’€0€€‚’’’Keyboard ControllerPhoenix Technologies Keyboard Controller˜NÄAéBJ#d€œŸ5 "€€ćr÷±€‰‚’€4€€‚’’’On-Board I/O Devices Serial / Parallel Ports, Keyboard, Mouse, SpeakerEQBxCJ#d€ŠŸ5 "€€ć’d—o€‰‚’€"€€‚’’’Peripherals Floppy Controller, IDE Interface, Peripheral Bays“IéB DJ#d€’Ÿ5 "€€ć`bE€‰‚’€*€€‚’’’Power Subsystem Power Supply, Power Usage and Auxiliary AC outlet„:xCDJ#d€tŸ5 "€€ć²R²L€‰‚’€*€€‚’’’System Security Chassis Lock and Power-up Passwordˆ> DEJ#d€|Ÿ5 "€€ć·•Ų€‰‚’€:€€‚’’’Chassis and Front Panel System Chassis and Front Panel$D;E" €€€’T#EE1`  ī†’’’’E›NInstallation and Configuration MenuīŖ;E}GD V€U€”rāUĒ9©żo€‚€‚‚‚‚‚€‚‚’Installation and Configuration MenuPlease reference the Intel Model 300SX20 User's Guide for information regarding the installation and removal of add-in cards or subsystems in the 300SX20 system.The information provided below is targeted at system integrators that need specific product information to integrate and configure the 300SX20 system with various adapter cards and peripherals.Available topics include:q'EīGJ#d€N,5 "€€ć &i)€‰‚’€€€‚’’’JumpersJumper Description Tabley2}GgHG#^€d,5 "€€ćø?ŗ€‰‚’€€‚’’’ConnectorsMotherboard Connector Informationy2īGąHG#^€d,5 "€€ć „F„€‰‚’€0€‚’’’SIMM ConfigurationsSIMM Configuration Guidej#gHJIG#^€F,5 "€€ćć鳀‰‚’€€‚’’’Memory MapSystem Memory Mapst-ąH¾IG#^€Z,5 "€€ć³Śø€‰‚’€€‚’’’InterruptsSystem Interrupt Usage Tablek$JI)JG#^€H,5 "€€ćÜi€‰‚’€€‚’’’I/O MapSystem I/O Address Map{4¾I¤JG#^€h,5 "€€ćp§‹¹€‰‚’€,€‚’’’I/O Control PortsI/O Control Port DefinitionsH)J3KG#^€,5 "€€ćäJŲŖ€‰‚’€:€‚’’’SETUP - Default SettingsDefault Settings for System SETUP Programo(¤J¢KG#^€P,5 "€€ć/@«s€‰‚’€"€‚’’’PC UtilitiesPC Utilities Diskette83K!LG#^€p,5 "€€ć²R²L€‰‚’€(€‚’’’System SecurityUsing the system security featuresH¢KiL: D€€”rāUĒ9©żo€‚€‚’See Also:…;!LīLJ#d€vW5 "€€ć’)˜€‰‚’€H€€‚’’’Intel 82344 ISA Bus Controller ISA Slot Informationz0iLhMJ#d€`W5 "€€ćąµ €‰‚’€*€€‚’’’Video Subsystem Video Driver Information}3īLåMJ#d€fW5 "€€ć’d—o€‰‚’€"€€‚’’’Peripherals Information on Peripheral Bays’HhMwNJ#d€W5 "€€ć`bE€‰‚’€*€€‚’’’Power Subsystem Available DC Power and Auxiliary AC Outlet Usage$åM›N" €€€’IwNäN1Žs‚ņ ’’’’äN5†System Baseboard JumpersW›N;O: D€:€”rāUĒ9©żo€‚€‚’System Baseboard Jumpersä)äN+€»#FRœ¢ ¢ ¢ €€’<€€”rāUĒ9©żo€‚’6€€”rāUĒ9©żo‚’6€"€”rāUĒ9©żo‚’6€2€”rāUĒ9©żo‚’’’NameOp;O+€›NtionsJumperDefault (pins)Ż.;OÆ#.\œ¢ ¢ ” <€€”rāUĒ9©żo€‚’6€€”rāUĒ9©żo‚’6€4€”rāUĒ9©żo‚’6€>€”rāUĒ9©żo‚’’’PasswordEnable/ ClearJ25Enabled (2-3)Ū,+€ćÆ#.Xœ¢ ¢ ” <€€”rāUĒ9©żo€‚’6€€”rāUĒ9©żo‚’6€0€”rāUĒ9©żo‚’6€:€”rāUĒ9©żo‚’’’VideoEnable/DisableJ26Enabled (1-2)×(ŗ‚Æ#.Pœ¢ ¢ ” <€€”rāUĒ9©żo€‚’6€€”rāUĒ9©żo‚’6€*€”rāUĒ9©żo‚’6€4€”rāUĒ9©żo‚’’’CMOSRetain/ClearJ27Retain (2-3)­lćg„A P€Ł€”rāUĒ9©żo€‚‚‚‚‚‚‚€‚’J25 will clear the Power-on Password. This is used if the user forgets their password.J26 disables the on-board video controller. This is used to add a video adapter card.J27 clears the CMOS RAM to its default settings. It also clears the Password.All Baseboard jumpers are accessible along the front edge of the board near the 387SX socket.See Also:’Kŗ‚ł„G#^€–,} "€€ćäJŲŖ€‰‚’€:€‚’’’SETUP - Default SettingsDefault settings of the System SETUP Program‡=g„€…J#d€z,} "€€ćąµ €‰‚’€*€€‚’’’Video Subsystem On-board Video Controller Information‘Jł„†G#^€”,} "€€ć²R²L€‰‚’€(€‚’’’System SecurityInformation regarding securing access to the system$€…5†" €€€’K†€†1ÅV€„’’’’€†śŠProduct Specification Menuz;5†ś†? N€v€”rāUĒ9©żo€‚€‚€‚‚’Product Specification MenuAvailable topics include:™O€†“‡J#d€žI5 "€€ćsuk·€‰‚’€2€€‚’’’Regulatory StandardsList of Regulatory Standards that the 300SX20 meets|5ś†ˆG#^€jI5 "€€ćźS)?€‰‚’€0€‚’’’Physical DimensionsSystem and Board Dimensions8“‡ŽˆG#^€pI5 "€€ćĢ^`€‰‚’€B€‚’’’Environmental SpecificationsEnvironmental Ratings‚;ˆ‰G#^€vI5 "€€ćD[€Œ€‰‚’€8€‚’’’Reliability InformationBoard Reliability InformationFŽˆV‰A#R€ I5 €€€‚’€€‚’’’O‰„‰A#R€I5 €€€‚’€€‚’’’See Also:’HV‰7ŠJ#d€I5 "€€ć`bE€‰‚’€*€€‚’’’Power Subsystem Available DC Power and Auxiliary AC Outlet UsageŸU„‰ÖŠJ#d€ŖI5 "€€ć·•Ų€‰‚’€:€€‚’’’Chassis and Front Panel Additional System Chassis and Front Panel Information$7ŠśŠ" €€€’E֊?‹1ķ€¹’’’’?‹ēŽKnown Product IssuesKśŠŠ‹7 >€(€”rāUĒ9©żo€‚‚’Known Issue MenuœM?‹&ŒO#n€šOü€€€‚‚’*€n€€‚ć”ƒM‰€‚’’’Problem Descriptions Menusfor 300SX20 Motherboards:PBA #511893-002t'Š‹šŒM#j€NOü€€€‚’(€€ć?Śķ#€‰€‚’’’PBA #511893-003, -004 and -005e&Œ’ŒM#j€0Oü€€€‚’(€€ć&õe=€‰€‚’’’PBA #511893-006*šŒ)% € €€‚‚‚’O'’Œx( €N€„µ5€‚’Known System Level Problems Include:Ŗ])"ŽM#j€ŗśŠ(€€ć3_Ŗր‰€‚’€6€€‚’’’Mechanical SubsystemsKnown Issues with Mechanical Subsystem (Floppy Carrier, etc...)”TxĆŽM#j€ØśŠ(€€ć>mȚ€‰€‚’€:€€‚’’’Intel Supplied SoftwareKnown Issues with Intel Supplied SW (Video Utilites)$"ŽēŽ" €€€’?Ǝ&1Ł B€’’’’&ĢČSystem History åēŽRĄ; D€Ė€€€‚€‚€‚‚€€‚€‚’300SX20 System HistoryThe 300SX20 System was production released in April, 1991. The BIOS, RAM and Jumpers are included in the PBA. There is not an AA &RĄēŽor CBA number used with this system.History of System Changes:W$&©Ą3 6€H€rāUĒ9©€ƒ‚’1.Nordic Qualified Power Supply.Ä–RĄmĆ. *€-€€‚€‚ƒ‚€‚’In February of 1992 the power supply was changed from a 109755-002 to a 109755-003 revision. The 109755-003 Power Supplies are functionally identical as the -002. The only difference is that they have been qualified by the regulatory agencies for Norway, Finland, Denmark and Swindon (SETI, NIMKO, DIMKO, SIMKO). The power supply still meets the Europe EN60950 standard.2.Base Chassis.In September of 1991 the system's base chassis was modified to widen the opening that ISA add-in cards use to allow for external connections. The keyboard I/O slot opening was also increased to make it easier to install some non-PS2 to PS2 style keyboard adaptors.Ī©ĄuÅ: B€€€‚ƒ‚€‚€‚ƒ‚€‚‚€ƒ‚’3.Floppy Carrier.In September of 1991 the floppy carrier was modified to eliminate a potential problem with it coming into to contact with the floppy disk drive's spindle. This could occur if the floppy disk drive was not installed correctly. See "Known Issues" Section below.4.Shipping Carton.The shipping carton was modified in September of 1991 to improve its resistance to being damaged during shipment.5.The ISA Add-in Adapter Card Guide.šmƊĘ% €į€€‚‚’In July of 1991 the Card Guide used to align the back of ISA add-in adapter cards had the slots widened to allow for thick ISA adapter cards. The card guide will accommodate boards up-to 0.070 inches. The new part number is 513503001.4 užĘ( €€„µ5€‚’See Also:Ŗ]ŠĘhĒM#j€ŗśŠ(€€ć3_Ŗր‰€‚’€6€€‚’’’Mechanical SubsystemsKnown Issues with Mechanical Subsystem (Floppy Carrier, etc...)”T¾Ę ČM#j€ØśŠ(€€ć>mȚ€‰€‚’€:€€‚’’’Intel Supplied SoftwareKnown Issues with Intel Supplied SW (Video Utilites)ŸUhĒØČJ#d€ŖśŠ"€€ć·•Ų€‰‚’€:€€‚’’’Chassis and Front Panel Additional System Chassis and Front Panel Information$ ČĢČ" €€€’CØČÉ1žäŠĀ’’’’ÉvBoard History Menu ĶĢČŹ= H€›€”rāUĒ9©żo€‚€‚‚‚’Board History MenuThe history of the 300SX20 Motherboard is divided into sections by the Printed Board Assembly (PBA) revisions. A section about pre-production versions of the PBA is also included.m&ɆŹG#^€LĶ"€€ć„æl*€‰‚’€.€‚’’’Pre-Production PBANot Supportedp)ŹöŹG#^€RĶ"€€ć`ė/3€‰‚’€€‚’’’511893-002First Production version™R†ŹĖG#^€¤Ķ"€€ćó;€‰‚’€€‚’’’511893-003New BIOS, Floppy Controller, RAM DAC and 82340 chip-set steppings™RöŹ(ĢG#^€¤Ķ"€€ćÖB¶D€‰‚’€€‚’’’511893-004New WD16C552 I/O Controller and new 82385SX and 82386SX steppingss)Ė›ĢJ#d€RĶ"€€ć‘nyM€‰‚’€€€‚’’’511893-005Imporved buzzer circuitp&(Ģ ĶJ#d€LĶ"€€ćLš€€”rāUĒ9©żo€‚‚’See Also:‰? ĶŲĶJ#d€~‚5 "€€ć*Ź*€‰‚’€€€‚’’’386SX CPU20MHz 386SX CPU and 387SX Numeric CO ProcessorŽDOĶfĪJ#d€ˆ‚5 "€€ć*"hŅ€‰‚’€$€€‚’’’Cache Memory 82385SX Cache Controller and 16KB of Cache SRAMFŲĶöĪJ#d€Œ‚5 "€€ćļ6”€‰‚’€P€€‚’’’Intel 82343 PC/AT System ControllerVLSI used for PC/AT Control¤ZfĪšĻJ#d€“‚5 "€€ć’)˜€‰‚’€H€€‚’’’Intel 82344 ISA Bus Controller PC/AT ISA Bus Control VLSI and ISA Slot information—MöĪ=J#d€š‚5 "€€ćąµ €‰‚’€*€€‚’’’Video Subsystem WD90C11šĻ=ĢČ Controller, Video Interface, BIOS and Drivers}3šĻŗJ#d€f‚5 "€€ć> ‡€‰‚’€ €€‚’’’System BIOSPhoenix Technologies System BIOS˜N=RJ#d€œ‚5 "€€ćr÷±€‰‚’€4€€‚’’’On-Board I/O Devices Serial / Parallel Ports, Keyboard, Mouse, Speaker$ŗv" €€€’BRø1`žį„ ’’’’øÖBIOS History Menu§kv_< H€Ö€”rāUĒ9©żo€‚€‚‚‚’BIOS History MenuThe history of the 300SX20 firmware is divided into sections by the BIOS revisions.q*øŠG#^€TĶ"€€ć²×Æ€‰‚’€ €‚’’’V1.10 31.L0First Production version”M_dG#^€šĶ"€€ć0x‹€‰‚’€ €‚’’’V1.10 32.L0New drive table, improved parrellel port options, bug fixesFŠńG#^€ŒĶ"€€ć„ˆ@€‰‚’€ €‚’’’V1.10 33.L0New drive table, improved RAM performance, bug fixesD d57 >€€”rāUĒ9©żo€‚‚’See Also:}3ń²J#d€f ‚ "€€ć> ‡€‰‚’€ €€‚’’’System BIOSPhoenix Technologies System BIOS$5Ö" €€€’U$²+1{€Յ ’’’’+QNovell and DEC Certification Letters&ŚÖQL f€µ€”rāUĒ9©żo€‚€‚‚‚ć6bLĶ‰‚ća‘‰‚‚’Certification Letter MenuIntel worked with both Novell and DEC to certify the 300SX20 platform on Netware and Pathworks. A copy of the certification letters is included below:DEC PathworksNovell Netwarea0+²1ė”€ ’’’’²<300SX20 Hardware and Software Compatibility ListŠ?Q<K d€€”rāUĒ9©żo€‚‚€‚‚ćó.s‰‚ć’†¼ń‰‚’Compatibility ListIntel performs compatibility tests on new systems using a number of common hardware and software packages. Information about which hardware and software packages were tested on the 300SX20 system when it was released is listed below:Software Compatibility ListHardware Compatibility ListQ ²1…-€’’’’ ’’’’‹ÅOrderable Spares for the 300SX20Į‡<N : B€€”rāUĒ9©żo€‚‚‚‚’Order able Spare Parts List for the Intel Model 300SX20The following items can be ordered through Intel Spares at 1-800-INTEL-4U:½& —#ž€L½kB€€’<€€”rāUĒ9©żo€‚’6€€”rāUĒ9©żo‚’6€8€”rāUĒ9©żo‚’’’PART NUMBERDESCRIPTIONComments’N  ‹#ę€½kB<€€”rāUĒ9©żo€‚’6€€”rāUĒ9©żo‚’6€ €”rāUĒ9©żo‚’’’© F ‹#ę€<½kB<€€”rāUĒ9©żo€‚’6€€”rāUĒ9©żo‚’6€8€”rāUĒ9©żo‚’’’506336-xxxChassis, BaseĒ<  ‹#ę€x½kB<€€”rāUĒ9©żo€‚’6€€”rāUĒ9©żo‚’6€<€”rāUĒ9©żo‚’’’201257-002Battery, 3.6VDCAttaches to Chassis w/VELCROĢAF Ł ‹#ꀂ½kB<€€”rāUĒ9©żo€‚’6€€”rāUĒ9©żo‚’6€D€”rāUĒ9©żo‚’’’509079-xxxCover, Top AssemblyIncludes Front Bezel AssemblyĀ7 › ‹#ę€n½kB<€€”rāUĒ9©żo€‚’6€€”rāUĒ9©żo‚’6€2€”rāUĒ9©żo‚’’’504439-xxxCover, TopWithout Front Bezel Assembly’Ł -‹#ę€½kB<€€”rāUĒ9©żo€‚’6€€”rāUĒ9©żo‚’6€ €”rāUĒ9©żo‚’’’ŚO› ‹#ꀞ½kB<€€”rāUĒ9©żo€‚’6€€”rāUĒ9©żo‚’6€H€”rāUĒ9©żo‚’’’509080-xxxBezel Assembly, FrontAttaches to Top Cover, w/buttons includedŹ?-Ń‹#ę€~½kB<€€”rāUĒ9©żo€‚’6€€”rāUĒ9©żo‚’6€L€”rāUĒ9©żo‚’’’507029-xxxButton, Power (Plastic)Installs in Front BezelŹ?§@‹#ę€~½kB<€€Ń§@<”rāUĒ9©żo€‚’6€€”rāUĒ9©żo‚’6€L€”rāUĒ9©żo‚’’’507030-xxxButton, Reset (Plastic)Installs in Front BezelÄ9ŃkA‹#ę€r½kB<€€”rāUĒ9©żo€‚’6€€”rāUĒ9©żo‚’6€@€”rāUĒ9©żo‚’’’452631-xxxKey Lock AssemblyInstalls in Front Bezelüq§@gB‹#ę€ā½kB<€€”rāUĒ9©żo€‚’6€€”rāUĒ9©żo‚’6€`€”rāUĒ9©żo‚’’’507032-xxxFiller Panel, 3.5" Prphl, PlasticInstalls in Front Bezel when there isn't a 3.5" Prphl installedżrkAdC‹#ę€ä½kB<€€”rāUĒ9©żo€‚’6€€”rāUĒ9©żo‚’6€`€”rāUĒ9©żo‚’’’507033-xxxFiller Panel, 5.2" Prphl, PlasticInstalls in Front Bezel when there isn't a 5.25" Prphl installed’gBöC‹#ę€½kB<€€”rāUĒ9©żo€‚’6€€”rāUĒ9©żo‚’6€ €”rāUĒ9©żo‚’’’¶+dC¬D‹#ę€V½kB<€€”rāUĒ9©żo€‚’6€€”rāUĒ9©żo‚’6€R€”rāUĒ9©żo‚’’’509085-xxxPrphl Sub-Chassis Assembly¼1öChE‹#ę€b½kB<€€”rāUĒ9©żo€‚’6€€”rāUĒ9©żo‚’6€^€”rāUĒ9©żo‚’’’504903-xxxCover, Bottom, Prphl Sub-ChassisĢA¬D4F‹#ꀂ½kB<€€”rāUĒ9©żo€‚’6€€”rāUĒ9©żo‚’6€D€”rāUĒ9©żo‚’’’513595-xxxCable, Reset SwitchInstalls in Prphl Sub-ChassisÓHhEG‹#ꀐ½kB<€€”rāUĒ9©żo€‚’6€€”rāUĒ9©żo‚’6€R€”rāUĒ9©żo‚’’’513596-xxxCable, Hard Disk IndicatorInstalls in Prphl Sub-ChassisĻD4FÖG‹#ꀈ½kB<€€”rāUĒ9©żo€‚’6€€”rāUĒ9©żo‚’6€J€”rāUĒ9©żo‚’’’513597-xxxCable, Power IndicatorInstalls in Prphl Sub-ChassisóhGÉH‹#ꀩ½kB<€€”rāUĒ9©żo€‚’6€€”rāUĒ9©żo‚’6€N€”rāUĒ9©żo‚’’’507842-xxxBlank Panel, 3.5F, MetalInstalls onto front of Prphl Sub-Chassis when no 3.5" installedõjÖG¾I‹#ę€Ō½kB<€€”rāUĒ9©żo€‚’6€€”rāUĒ9©żo‚’6€P€”rāUĒ9©żo‚’’’505728-xxxBlank Panel, 5.25", MetalInstalls onto front of Prphl Sub-Chassis when no 5.25" installed|ÉHĘJŒ#č€ų½kB<€€”rāUĒ9©żo€‚’8€€”rāUĒ9©żo‚’6€z€”rāUĒ9©żo‚’’’505729-xxxBlank Panel, 3.5HD, Metal(Internal Prphl Bay)Installs onto front of Prphl Sub-Chassis when no HD installed’¾IXK‹#ę€½kB<€€”rāUĒ9©żo€‚’6€€”rāUĒ9©żo‚’6€ €”rāUĒ9©żo‚’’’²'ĘJ L‹#ę€N½kB<€€”rāUĒ9©żo€‚’6€€”rāUĒ9©żo‚’6€J€”rāUĒ9©żo‚’’’455114-xxxFloppy Disk Drive 3.5"ÓHXKŻL‹#ꀐ½kB<€€”rāUĒ9©żo€‚’6€€”rāUĒ9©żo‚’6€`€”rāUĒ9©żo‚’’’513502-xxxCarrier, 3.5", Floppy (1 per Bay)Used in top 5.25" Bay ÜQ L¹M‹#ę€¢½kB<€€”rāUĒ9©żo€‚’6€€”rāUĒ9©żo‚’6€b€”rāUĒ9©żo‚’’’168193-xxxScrews (4 required for 3.5 Floppy)Used with Floppy drive CarrierÖKŻLN‹#ꀖ½kB<€€”rāUĒ9©żo€‚’6€€”rāUĒ9©żo‚’6€d€”rāUĒ9©żo‚’’’ 507034-xxxSide Panel, 3.5 Prphl (2 required)Installs in Front BezelŽS¹MmO‹#ꀦ½kB<€€”rāUĒ9©żo€‚’6€€”rāUĒ9©żo‚’6€b€”rāUĒ9©żo‚’’’505195-xxxCarrier, 5.25", Floppy (2 per Bay)Used in Middle 5.25" Bay (Rails)ŚONS€‹#ꀞ½kB<€€”rāUĒ9©żo€‚’6€€”rāUĒ9©żo‚’6€d€”rāUĒ9©żo‚’’’168193-mOS€<xxxScrews (4 required for 5.25 Floppy)Used with 5.25 Floppy RailsÉ>mO‹#ę€|½kB<€€”rāUĒ9©żo€‚’6€€”rāUĒ9©żo‚’6€J€”rāUĒ9©żo‚’’’509101-xxxCable, Drive Grounding18AWG w/two FASTON lugsŹ?S€ę‹#ę€~½kB<€€”rāUĒ9©żo€‚’6€€”rāUĒ9©żo‚’6€8€”rāUĒ9©żo‚’’’458408-xxxCable, FloppySupports 3.5 and 5.25 (3.5 is A:)’x‚‹#ę€½kB<€€”rāUĒ9©żo€‚’6€€”rāUĒ9©żo‚’6€ €”rāUĒ9©żo‚’’’»0ę3ƒ‹#ę€`½kB<€€”rāUĒ9©żo€‚’6€€”rāUĒ9©żo‚’6€L€”rāUĒ9©żo‚’’’500933-xxxHard Disk, 80MB QuantumObsolete»0x‚īƒ‹#ę€`½kB<€€”rāUĒ9©żo€‚’6€€”rāUĒ9©żo‚’6€L€”rāUĒ9©żo‚’’’500932-xxxHard Disk, 40MB QuantumObsolete³(3ƒ”„‹#ę€P½kB<€€”rāUĒ9©żo€‚’6€€”rāUĒ9©żo‚’6€L€”rāUĒ9©żo‚’’’512701-xxxHard Disk, 52MB Quantum“)īƒU…‹#ę€R½kB<€€”rāUĒ9©żo€‚’6€€”rāUĒ9©żo‚’6€N€”rāUĒ9©żo‚’’’512702-xxxHard Disk, 105MB QuantumĻD”„$†‹#ꀈ½kB<€€”rāUĒ9©żo€‚’6€€”rāUĒ9©żo‚’6€N€”rāUĒ9©żo‚’’’506332-xxxCarrier, 3.5", Hard DiskUsed in Bottom Internal BayĶBU…ń†‹#ꀄ½kB<€€”rāUĒ9©żo€‚’6€€”rāUĒ9©żo‚’6€D€”rāUĒ9©żo‚’’’201315-xxxScrews (4 required)Used w/ 3.5" Hard Disk CarrierĮ6$†²‡‹#ę€l½kB<€€”rāUĒ9©żo€‚’6€€”rāUĒ9©żo‚’6€@€”rāUĒ9©żo‚’’’458407-xxxCable, Hard DriveSupports 1 IDE DriveÉ>ń†{ˆ‹#ę€|½kB<€€”rāUĒ9©żo€‚’6€€”rāUĒ9©żo‚’6€J€”rāUĒ9©żo‚’’’509101-xxxCable, Drive Grounding18AWG w/two FASTON lugs’²‡ ‰‹#ę€½kB<€€”rāUĒ9©żo€‚’6€€”rāUĒ9©żo‚’6€ €”rāUĒ9©żo‚’’’Œļ{ˆ™Š#ß½kBB€€”rāUĒ9©żo€‚’D€J€”rāUĒ9©żo‚’D€Ø”rāUĒ9©żo‚‚’’’509104Used with Model300SX202B0Accessory Kit (AK0): Includes505195 - 5.25 Slides506332 - Carrier HD201315 - Screw168193 - Screw513502 - 3.5" Carrier507034 - Side Panel509101 - Drive Grounding CableQuantity of2148122’ ‰+‹‹#ę€½kB<€€”rāUĒ9©żo€‚’6€€”rāUĒ9©żo‚’6€ €”rāUĒ9©żo‚’’’YĄ™Š„Œ™#½kBB€€”rāUĒ9©żo€‚’@€H€”rāUĒ9©żo‚’@€R”rāUĒ9©żo‚‚’’’509106Used with Model300SX202FAccessory Kit (AK1): Includes505195 - 5.25 Slides506332 - Carrier HD201315 - Screw168193 - Screw509101 - Drive Grounding CableQuantity of21441’+‹‹#ę€½kB<€€”rāUĒ9©żo€‚’6€€”rāUĒ9©żo‚’6€ €”rāUĒ9©żo‚’’’Ė@„Œį‹#ꀀ½kB<€€”rāUĒ9©żo€‚’6€€”rāUĒ9©żo‚’6€N€”rāUĒ9©żo‚’’’511893-xxxMother Board, SBC300SX20Ask for Latest RevisionÅ:¦Ž‹#ę€t½kB<€€”rāUĒ9©żo€‚’6€€”rāUĒ9©żo‚’6€@€”rāUĒ9©żo‚’’’506371-xxxShield, I/O PanelInstalls on Mother BoardĪCįt‹#ꀆ½kB<€€”rāUĒ9©żo€‚’6€€”rāUĒ9©żo‚’6€V€”rāUĒ9©żo‚’’’109889-1801Mb by 9 Fast Page 80Ns SIMMMust use in pairs of 2ÓH¦ŽSĄ‹#ꀐ½kB<€€”rāUĒ9©żo€‚’6€€”rāUĒ9©żo‚’6€H€”rāUĒ9©żo‚’’’tSĄ<102480-0022-Pin Shorting JumperInstalls on Motherboard stake pins’tåĄ‹#ę€½kB<€€”rāUĒ9©żo€‚’6€€”rāUĒ9©żo‚’6€ €”rāUĒ9©żo‚’’’Å:SĄŖĮ‹#ę€t½kB<€€”rāUĒ9©żo€‚’6€€”rāUĒ9©żo‚’6€B€”rāUĒ9©żo‚’’’109755-xxxPower Supply, 145WTEAPO Model # TP-441S1Aŗ/åĄdĀ‹#ę€^½kB<€€”rāUĒ9©żo€‚’6€€”rāUĒ9©żo‚’6€>€”rāUĒ9©żo‚’’’108520-xxxPower Cord, 125VFor Use in USAsŖĮdƍ#ź€ę½kB<€€”rāUĒ9©żo€‚’8€€”rāUĒ9©żo‚’8€x€”rāUĒ9©żo‚’’’507178-xxx+12 Volt Load Resisterwith mounting hardwareUsed on Diskless systems,Connects to Molex connector’dĀöĆ‹#ę€½kB<€€”rāUĒ9©żo€‚’6€€”rāUĒ9©żo‚’6€ €”rāUĒ9©żo‚’’’\ÄdĆRŘ#ž€‰½kB<€€”rāUĒ9©żo€‚’B€ €”rāUĒ9©żo‚’B€ ”rāUĒ9©żo‚’’’SSX20SPRKIT02300SX20 Spares KitIncludes:i386 SX 20MHz Motherboard, 0MBPower Supply, 145WSIMM 1MB x 9, 80NSFloppy CableHard Disk CableUsed for service replacements.Quantity:344119öĆ‹Å6 <€€”rāUĒ9©żo€‚’LRÅ×Å1āM‹‡ ’’’’×ÅmĢ386SX and 387SX InformationɆ‹Å ČC T€ €”rāUĒ9©żo€‚€‚€‚€‚’386SX and 387SX Information386SX CPUThe 300SX20 contains an industry standard 20MHz Intel 386SXTM microprocessor, fabricated using Intel's CHMOS IV process, and placed in a 100pin PQFP package. Internally the CPU uses 32bit data paths while externally it uses a 16bit data path. This is done to reduce the overall system component cost. The 386SX microprocessor will run the same 32bit software written for the Intel 386SX processor and is ideal for multitasking operating environments such as Microsoft DOS with Windows 3.0 and Microsoft OS/2. It will also support Intel's RMX with real-time multitasking and UNIX System V release 4.`×ÅĖA P€?€”rāUĒ9©żo€‚‚‚€‚€‚’Other features of the 386SX include: a 20 Megabytes per second data bus bandwidth, address pipelining, virtual memory support with a 64 Terabyte limit, hardware enforced protection, and a memory management unit.387SX Numeric CO ProcessorThe Numeric CO Processor is a 20MHz version of the 387SXTM. The 387SX is fabricated using Intel's CHMOS IV process and is completely object code compatible with the standard 387. Since the 387SX in an optional device a socket is provided for later installation. The socket is identified as U66.m5 ČmĢ8 >€k€”rāUĒ9©żo€‚‚’The system BIOS will automatically detect the presence of the 387SX when installed and adjust the CMOS memory that contains the system setup information accordingly. Use of a numeric CO Processor can significantly improve the performance of applications that require extension floating point arithmetic. = ĖŖĢ1E ±©’’’’ŖĢ£Cache MemoryamĢ ĻB R€?€”rāUĒ9©żo€‚€‚€€‚’Cache MemoryThe system incorporates a 16KB two-way set associative cache. The cache can be disabled and enabled or set for either all cacheable memory or just conventional and extended memory via the ROM based SETUP Program. The cache is implemented using a 20MHz version of the Intel 82385SX. Features of this device include: allowing zero wait state read hit, zero wait state posted memory writes, and support for non-cacheable memory space while fully mapping 386SX address space. The 82385SX is completely software transparent.@ŖĢW> J€€”rāUĒ9©żo€‚€€‚’A posted memory write operation allows most memory write cycles to run with zero wait states by latching the 386SX address, data and cycle definition pins into the 82385SX. This ĻWmĢallows the 386SX to start another operation while the 82385SX completes the current memory write operation. In all other aspects, a posted memory write operation is a traditional cache "write through" technique where the main memory is always updated and, if it also happens to be a cached address, the cache is updated as well.K’ Ļ¢L f€’€”rāUĒ9©żo€‚€€‚‚€€€ €‚’The 82385SX includes a synchronous dual-bus architecture with bus watching (snooping) to ensure cache coherency while having no impact on performance. The dual-bus architecture of the 82385SX allows the CPU to execute out of cache even while some other bus operations are taking place (such as BusMaster cycles, refresh or DMA transfers). Because of the dual-bus architecture BusMaster adapter cards can have increased access to the system bus.If an access to system memory causes the cache being used by the CPU to become invalid the "snooping" feature will prevent the CPU from executing out of the invalidated cache memory. Because of this Snooping feature, operating the system with the cache disabled significantly reduces the system's performance.ŖW£W |€U€”rāUĒ9©żo€‚€ € € €‚‚‚‚‚€‚ć/@«s€‰ƒ‚’Because the 82385SX fully maps the 386SX address space, add-in adapter cards that use dual-port RAM may not function correctly when the cache is enabled.The Cache SRAM is implemented in a single 35 nano-second 8KB by 16bit device.Cache can also be enabled and disabled by using a software utility called PC_Util.See Also:PC UtilitiesFor information regarding the use and features of PC_Util software package> ¢į1®‹‡2 ’’’’įQ System Memory+é£ B R€Ó€”rāUĒ9©żo€‚€‚€€‚’System MemoryUp to 16 Megabytes of on-board memory can be installed using SIMMs. 256Kb by 9, 1Mb x 9 or 4Mb x 9 SIMMs can be used. Up to two different SIMM types (DRAM sizes) can be mixed in a single system as long as they are installed in consecutive pairs of the same type. All SIMMs must be Fast Page 80 nano-second SIMMs. Two to eight SIMMs can be installed into the dual SIMM sockets. The SIMM sockets have been strengthened to improve reliability over older SIMM sockets.0äį< L f€É€”rāUĒ9©żo€‚€€‚‚€€€€‚’The System BIOS automatically sizes memory and initializes the 82343 System Controller so there are no memory size jumpers for the user to configure.Using 80 nano-second Fast Page-Mode DRAMs accesses to the on-board memory have an average of less than 0.3 386SX wait states. On-board memory supports parity (a high and low parity bit for each 16-bit word) that can be enabled or disabled by software using I/O Port 79. Error Checking & Correction (ECC) is not supported.¼ Q Y €€y€”rāUĒ9©żo€‚€€‚‚€‚ć „F„€‰ƒƒ‚ćć鳉ƒƒƒ‚’Remaping of unused DRAM memory space (640KB to 1MB) to higher addresses is allowed. This increases the available extended memory. This is allowed only in 1MB and 2MB memory configurations and only when all shadowing is disabled in SETUP. Reference the 300SX20 User's Guide on how to enable memory rolling.See Also:SIMM ConfigurationsSIMM Configuration Guide including Interleaving InformationMemory MapSystem Memory MapsV%< § 1µ ©ė€’’’’§ ĀDReal Time Clock, CMOS RAM and BatteryŻQ ĘB R€»€”rāUĒ9©żo€‚€‚€€‚’Real Time Clock, Battery-Backed CMOS RAM and BatteryThe Real Time Clock (RTC) can be set by using the ROM based SETUP Program. The RTC and System timer both have sufficiently tight tolerances to support average clock error rates of less than 6 minutes per year (worst case at 15 minutes per year). CMOS memory supports the standard 64byte batterybacked CMOS RAM and includes an additional 64bytes of batterybacked CMOS RAM. All CMOS RAM is reserved for ROM BIOS use.ŗb§ ŒBX ~€Å€”rāUĒ9©żo€‚€€ĘŒBQ ‚‚€€€ € € € € €‚’The CMOS RAM can be set to specific values or cleared to the system default values using the ROM based SETUP program. Also, the CMOS RAM values can be cleared to the system defaults by using hardware jumper J27.An industry standard 3.6 volt battery is used which IS NOT COMPATIBLE with the 6 volt batteries used in the 16MHz 300SX product. A 4.5 volt battery maybe used, but use of batteries rated greater than 4.5 volts may damage the baseboard. The battery is attached to the system using a VELCRO brand strip for easy replacement. The expected life of the battery is greater than 3 years.HĘŌB: D€€”rāUĒ9©żo€‚€‚’See Also:ŽDŒBbCJ#d€ˆW5 "€€ć &i)€‰‚’€€€‚’’’JumpersJumper Description Table for information on using J27HŌBńCG#^€W5 "€€ćäJŲŖ€‰‚’€:€‚’’’SETUP - Default SettingsDefault Settings for System SETUP Program˜NbC‰DJ#d€œW5 "€€ć’)˜€‰‚’€H€€‚’’’Intel 82344 ISA Bus Controller RTC and CMOS RAM are in the Intel 823449ńCĀD6 <€€”rāUĒ9©żo€‚’N‰DE1 2 Ņ…’’’’EĢJ82343 PC/AT System Controller’ĮĀDH> J€ƒ€”rāUĒ9©żo€‚€‚‚‚‚’Intel 82343 PC/AT System ControllerIntel's 20MHz 82343 System Controller provides many benefits in a highly integrated package. Besides providing much of the support for some of the other system features it provides the ability to re-map bad blocks of system memory found during POST and still have the RAM appear as contiguous memory to the operating system.The 82343 provides Shadow RAM with write protection in 16K increments which helps avoid the RAM availability problems in the address range from A0000H to FFFFFH (640KB-1MB), and staggers the RAM refresh by banks to reduce EMI/RFI emissions. Other 82343 features include: Fast CPU Reset, Fast A20 Gate and optional disable for NPX reset.;ęEJJU x€Ķ€”rāUĒ9©żo€‚‚‚€ €‚‚€‚ćĢ˜Č™€‰ƒƒƒ€‚’The 82343 provides full hardware support for the LotusIntelMicrosoft Expanded Memory Specification version 4.0 (LIM EMS). Hardware implementations of the LIM EMS are faster than implementations using software emulation.To use the LIM EMS hardware a software driver is required. Currently, Intel Systems Group does not know of any driver software that takes advantage of the 82343 LIM EMS hardware.See Also:Fast A20 and CPU ResetHow to use Fast A20 and Fast CPU Reset‚@HĢJB T€€€”rāUĒ9©żoć*€‰ƒƒƒ€‚’DeTurbo ImplementationHow System DeTurbo is implementedR!JJK10ė€dˆ’’’’KüMFast A20 and Fast CPU Reset UsageŽ’ĢJüML f€%€”rāUĒ9©żo€‚€‚‚‚€€‚‚€€‚’Fast A20 and Fast CPU Reset UsageFast A20 and fast CPU reset support is provided by the 82343. Both of these features help provide better system performance in multi-tasking environments. There are two ways to write software that will invoke either of these features.The first is to perform a dummy read of I/O port EEH or EFH for A20 enable and CPU reset, respectively. A dummy write to EEH clears A20.Optionally, I/O port 92H, bits 0 and 1, can be used to control these functions. Writing a logic 1 to bit 1 of I/O port 92H enables fast A20. Setting bit 1 to a 0 disables fast A20. Writing a 03H to I/O port 92H forces a fast CPU reset.GKCN1KŅ…’’’’CNՂDeTurbo Implementationk'üMŗ€D V€O€”rāUĒ9©żo€‚€‚‚‚€ €‚’DeTurbo ImplementaionDeTurbo is implemented by performing three operations. First, the DRAM controller is reprogrammed to generate more refresh cycles. Second, cache is turned off and, third, some of the 82340 chip set registers are reprogrammed to slow down instruction execution time. This may not be the exact order of execution when DeTurbo is invoked.DeTurbo shouCNŗ€üMld only be used when an application requires the system to run at a slower speed, such as some older copyprotected software. System performance is reduced significantly.ŅCNŒC T€€”rāUĒ9©żo€‚€€‚‚€‚’Turbo/DeTurbo modes can be changed using CNTRL-ALT HOT keys, the ROM based SETUP progam or a software utility called PC_Util.See Also:ˆAŗ€‚G#^€‚29"€€ć/@«s€‰‚’€"€‚’’’PC UtilitiesInformation about the PC_Util software packageˆAŒœ‚G#^€‚29"€€ćk‰©€‰‚’€0€‚’’’Keyboard ControllerInformation about the Keyboard HOT keys9‚Ղ6 <€€”rāUĒ9©żo€‚’b1œ‚7ƒ1idˆy’’’’7ƒ>ˆ82344 ISA Bus Controller and ISA Slot Information?ōՂv…K d€é€”rāUĒ9©żo€‚€‚€‚€‚‚€€‚’Intel 82344 ISA PC/AT-Bus Controller and ISA Slot Information82344Intel's 82344 ISA Bus Controller provides enhanced versions of all of the standard PC/AT peripherals including: two 8259A Interrupt Controllers, two 8237 DMA Controllers, one 8254 Programmable Timer/Counter, the RTC and 128 bytes of CMOS memory.The 82344 can use either 10bit (default) or 16bit I/O address decoding, via software control. This is provided for systems that need the full non-overlapping I/O address range.Čq7ƒ>ˆW |€ć€”rāUĒ9©żo€‚€€‚‚€‚€€€‚‚‚‚€€‚’A "Quiet-Bus" feature prevents any active signals on the ISA bus when there are no valid accesses to the ISA expansion slots.ISA Bus Expansion SlotsThe 300SX20 system includes four sixteen bit ISA bus slots that run at an 8MHz clock rate.Eight bit ISA bus cards can be used as long as they are not "Drop Cards".The 300SX20 will not accept any thirty two bit bus cards.A stake pin (J7) is provided near the first ISA bus connector (J11) that provides access to the system reset signal. This is an open collector signal that is OR'ed with the front panel reset which can be used to remotely reset the board.Iv…‡ˆ1W ­’’’’‡ˆOn-board Video SubsystemL >ˆӊB R€€”rāUĒ9©żo€‚€‚€€‚’On-board VGA Video SubsystemThe video subsystem is implemented using the Western Digital WD90C11 video controller. The WD90C11 is a sixteen bit device and includes support for 512KB of video RAM. The Video RAM is located on the mother board and consists of four 256K by four bit 70 nano-second Fast Page Mode DRAMs. Having 512KB of video RAM allows for a maximum resolution of 1024 x 768 pixels with 16 displayed colors. The 512K Video RAM is paged into 128K of system memory located between A0000H and BFFFFH. ʇˆߍF Z€€”rāUĒ9©żo€‚€€‚‚€€‚’A standard PS/2 fifteen pin analog VGA connector is provided. This is driven by a 50MHz DAC. A VGA Pass Through connector for use with certain video adapter cards is also provided. If a 9pin TTL video connector (for monochrome, CGA or EGA style monitors) is required, an addin video adapter must be used.The WD90C11 can emulate MDA/MGA, Hercules, CGA and EGA video controllers. Emulation of these controllers (such as the Hercules emulation mode) may require the user to first run a software utility to reprogram the WD90C11 to accept the mode specific video instructions. The utility that performs this function is called VGA1024C.EXE and is available as part of the video drivers and utilities.”VӊĄ> J€­€”rāUĒ9©żo€‚€€‚’The Video drivers and utilities may be obtained through IntelTechDirect's Electronic Bulletin board (iPAN). Enhanced mode drivers for AutoCAD, AutoShade, Cadvance, Framework, GEM3, Generic Cadd, OS/2, PCAD, VersaCAD, MS WINDOWS, Word Perfect, Word Star, Ventura, Lotus 123 and Lotus Symphony are provided. These drivers and the utilities come in a compressed form and are extracted using an install program included with the software. The video utilities include a ROM date chߍĄ>ˆeck program, a Video BIOS TSR (RAMBIOS.EXE), a screen saver (SS.EXE) and a mode switching utility (VGA1024C.EXE).,ąߍ«ĀL f€Į€”rāUĒ9©żo€‚€€€€‚‚€€‚’To allow for the use of other addin video adapter cards, the onboard video subsystem can be disabled using hardware jumper J26.The Western Digital Video BIOS supports the normal VGA modes (0,1,2,3,4,5,6,7,D,E,F,10,11,12,13). The 1024 by 768 modes use interlaced video. Video modes 8, 9, A, B and C are not supported because modes 8 & 9 are only used in PCjr systems and modes A, B and C are used by systems that include an EGA BIOS. All video modes are listed in hex.RĄ;Ć> L€¤€”rāUĒ9©żo€‚€€‚‚’The video subsystem supports the enhanced modes listed in the table below:~U«Ā¹Ä)#"‚ŖDŸ g f g f Ÿ €€’<€€”rāUĒ9©żo€‚’6€€”rāUĒ9©żo‚’6€*€”rāUĒ9©żo‚’6€:€”rāUĒ9©żo‚’6€F€”rāUĒ9©żo‚’8€T€”rāUĒ9©żo‚‚’8€x€”rāUĒ9©żo‚‚’’’Mode#ResolutionColorsFontClockVerticalRefreshHorizontalRefresh RateW<;ĆĘ#‚xDŸ g f g f Ÿ <€€”rāUĒ9©żo€‚’6€ €”rāUĒ9©żo‚’6€.€”rāUĒ9©żo‚’6€6€”rāUĒ9©żo‚’6€B€”rāUĒ9©żo‚’6€T€”rāUĒ9©żo‚’6€d€”rāUĒ9©żo‚’’’47H132col x 28rows168x1644.7MHz68.8Hz31.50kHzV;¹ÄfĒ#‚vDŸ g f g f Ÿ <€€”rāUĒ9©żo€‚’6€ €”rāUĒ9©żo‚’6€.€”rāUĒ9©żo‚’6€6€”rāUĒ9©żo‚’6€@€”rāUĒ9©żo‚’6€R€”rāUĒ9©żo‚’6€b€”rāUĒ9©żo‚’’’54H132col x 43rows168x844.7MHz68.8Hz31.50kHzW<Ę½Č#‚xDŸ g f g f Ÿ <€€”rāUĒ9©żo€‚’6€ €”rāUĒ9©żo‚’6€.€”rāUĒ9©żo‚’6€6€”rāUĒ9©żo‚’6€B€”rāUĒ9©żo‚’6€T€”rāUĒ9©żo‚’6€d€”rāUĒ9©żo‚’’’55H132col x 25rows168x1644.7MHz68.8Hz31.50kHz\AfĒŹ#‚‚DŸ g f g f Ÿ <€€”rāUĒ9©żo€‚’6€ €”rāUĒ9©żo‚’6€.€”rāUĒ9©żo‚’6€B€”rāUĒ9©żo‚’6€L€”rāUĒ9©żo‚’6€^€”rāUĒ9©żo‚’6€n€”rāUĒ9©żo‚’’’56H132col x 43rows4 (mono)8x844.7MHz68.8Hz31.50kHz]B½ČvĖ#‚„DŸ g f g f Ÿ <€€”rāUĒ9©żo€‚’6€ €”rāUĒ9©żo‚’6€.€”rāUĒ9©żo‚’6€B€”rāUĒ9©żo‚’6€N€”rāUĒ9©żo‚’6€`€”rāUĒ9©żo‚’6€p€”rāUĒ9©żo‚’’’57H132col x 25rows4 (mono)8x1644.7MHz68.8Hz31.50kHzN3ŹÄĢ#‚fDŸ g f g f Ÿ <€€”rāUĒ9©żo€‚’6€ €”rāUĒ9©żo‚’6€"€”rāUĒ9©żo‚’6€*€”rāUĒ9©żo‚’6€4€”rāUĒ9©żo‚’6€B€”rāUĒ9©żo‚’6€T€”rāUĒ9©żo‚’’’58H800 x 600168x836MHz56/60Hz35.2kHzT9vĖĪ#‚rDŸ g f g f Ÿ <€€”rāUĒ9©żo€‚’6€ €”rāUĒ9©żo‚’6€"€”rāUĒ9©żo‚’6€6€”rāUĒ9©żo‚’6€@€”rāUĒ9©żo‚’6€N€”rāUĒ9©żo‚’6€`€”rāUĒ9©żo‚’’’59H800 x 6002 (mono)8x836MHz56/60Hz35.2kHzQ6ÄĢiĻ#‚lDŸ g f g f Ÿ <€€”rāUĒ9©żo€‚’6€ €”rāUĒ9©żo‚’6€$€”rāUĒ9©żo‚’6€*€”rāUĒ9©żo‚’6€6€”rāUĒ9©żo‚’6€J€”rāUĒ9©żo‚’6€Z€”rāUĒ9©żo‚’’’5AH1024 x 76828x1644.7MHz 86.9Hz35.2kHzQ6ĪĘ#‚lDŸ g f g f Ÿ <€€”rāUĒ9©żo€‚’6€ €”rāUĒ9©żo‚’6€$€”rāUĒ9©żoiĻĘ>ˆ‚’6€*€”rāUĒ9©żo‚’6€6€”rāUĒ9©żo‚’6€J€”rāUĒ9©żo‚’6€Z€”rāUĒ9©żo‚’’’5BH1024 x 76848x1644.7MHz 86.9Hz35.2kHzO4iĻ#‚hDŸ g f g f Ÿ <€€”rāUĒ9©żo€‚’6€ €”rāUĒ9©żo‚’6€"€”rāUĒ9©żo‚’6€,€”rāUĒ9©żo‚’6€6€”rāUĒ9©żo‚’6€D€”rāUĒ9©żo‚’6€V€”rāUĒ9©żo‚’’’5CH800 x 6002568x836Mhz56/60Hz35.2kHzR7Ęg#‚nDŸ g f g f Ÿ <€€”rāUĒ9©żo€‚’6€ €”rāUĒ9©żo‚’6€$€”rāUĒ9©żo‚’6€,€”rāUĒ9©żo‚’6€8€”rāUĒ9©żo‚’6€L€”rāUĒ9©żo‚’6€\€”rāUĒ9©żo‚’’’5DH1024 x 768168x1644.7MHz 86.9Hz35.2kHzN3µ#‚fDŸ g f g f Ÿ <€€”rāUĒ9©żo€‚’6€ €”rāUĒ9©żo‚’6€"€”rāUĒ9©żo‚’6€,€”rāUĒ9©żo‚’6€8€”rāUĒ9©żo‚’6€F€”rāUĒ9©żo‚’6€R€”rāUĒ9©żo‚’’’5EH640 x 4002568x1625MHz70Hz31.50kHzN3g#‚fDŸ g f g f Ÿ <€€”rāUĒ9©żo€‚’6€ €”rāUĒ9©żo‚’6€"€”rāUĒ9©żo‚’6€,€”rāUĒ9©żo‚’6€8€”rāUĒ9©żo‚’6€F€”rāUĒ9©żo‚’6€R€”rāUĒ9©żo‚’’’5FH640 x 4802568x1625MHz60Hz31.50kHzHµK: D€€”rāUĒ9©żo€‚€‚’See Also:ŠCÕG#^€†5 "€€ć &i)€‰‚’€€‚’’’JumpersJumper Description Table for information on using J26•HKjM#j€5 (€€ć>mȚ€‰€‚’€B€€‚’’’Issues with Video UtilitiesKnown issues with WD Video UtilitiesˆAÕņG#^€‚5 "€€ć#Āe£€‰‚’€*€‚’’’Video ComparisonComaprison of WD90C11 and WD90C00 Features$j" €€€’Oņe1ó yl’’’’eĘBWD90C11 and WD90C00 Comparison;ü  ? L€ł€”rāUĒ9©żo€€‚‚‚‚‚‚’Comparison of Western Digital WD90C11 vs. the WD90C00The Western Digital WD90C11 has a number of enhancements that improve the video subsystem performance as compared with the older WD90C00 video controller.These changes include the following:“eT —#ž€:#~'€€’<€€”rāUĒ9©żo€‚’6€€”rāUĒ9©żo‚’6€(€”rāUĒ9©żo‚’’’FeatureWD90C11WD90C00®#   ‹#ę€F#~'<€€”rāUĒ9©żo€‚’6€*€”rāUĒ9©żo‚’6€8€”rāUĒ9©żo‚’’’Maximum Clock rate65Mhz56Mhz¦T Ø ‹#ę€6#~'<€€”rāUĒ9©żo€‚’6€€”rāUĒ9©żo‚’6€*€”rāUĒ9©żo‚’’’CacheWrite CacheNoneŲL € Œ#耘#~'<€€”rāUĒ9©żo€‚’8€,€”rāUĒ9©żo‚‚’6€Œ€”rāUĒ9©żo‚’’’Memory ArchitectureAdjustable internal FIFO and Fast Page MemoryFIFOŪPØ [ ‹#ꀠ#~'<€€”rāUĒ9©żo€‚’6€0€”rāUĒ9©żo‚’6€r€”rāUĒ9©żo‚’’’Memory Data TransfersTrue 16-bit CPU to Video Memory8 or 16-bit interfaceļc€ JŒ#č€Ę#~'<€€”rāUĒ9©żo€‚’8€*€”rāUĒ9©żo‚‚’6€¤€”rāUĒ9©żo‚’’’I/O Data Transfers16-bit I/O register transfers to data/index register pairs8-bit interfaceąU[ *‹#ę€Ŗ#~'<€€”rāUĒ9©żo€‚’6€d€”rāUĒ9©żo‚’6€x€”rāUĒ9©żo‚’’’1024 x 768 x 16 support for non-interlaced modeBuilt-inRequires external logicŠEJ @‹#ꀊ#~'<€€”rāUĒ9©żo€‚’6€(€”rāUĒ9©żo‚’6€T€”rāUĒ9©żo‚’’’Feature connectorIntegrated InterfaceExternal support required* @Ė@*×@‹#ꀀ#~'<€€”rāUĒ9©żo€‚’6€ €”rāUĒ9©żo‚’6€F€”rāUĒ9©żo‚’’’Bus InterfaceMostly IntegratedMore support logic requiredø- @A‹#ę€Z#~'<€€”rāUĒ9©żo€‚’6€€”rāUĒ9©żo‚’6€.€”rāUĒ9©żo‚’’’Package132 pin PFP100 pin PLCC or PQFP7’×@ĘB8 >€’€”rāUĒ9©żo€‚‚’Because of the enhancements made to the WD90C11 video controller the performance of the video subsystem has been improved by approximately 1.8 times over a comparable system using a WD90C00. This information was obtained from Western Digital Imaging.V%AC1³ ­„‰’’’’CyMSystem BIOS, ROM Based SETUP and POST[ĘBwED V€/€”rāUĒ9©żo€‚€‚‚‚€€‚’Phoenix Technologies' System BIOS, ROM Based System SETUP and POSTThe system uses Phoenix 80386 ROM BIOS PLUS that is contained in a 200 nano-second one-time-programmable 27C210 (64K x 16) EPROM in a socketed 44pin PLCC package identified as U32.The ROM occupies 128KB of system address space (96K system / 32K video) with the System BIOS code located at F0000H to FFFFFH. The Video BIOS code along with the SETUP program are located at E0000H to EFFFFH. The BIOS supports the Intel System ID (IDNOL0 located at F000:ED00).ÕC”GH ^€«€”rāUĒ9©żo€‚€€€ €‚‚‚‚‚’When the user elects to enable access to the ROM based SETUP program during pre-boot only this does not remove the SETUP code from the system address space located in the E0000 segment.Further information on the System BIOS functions can be found in the following documents:IBM PS/2 and Personal Computer BIOS Technical Reference. Published by IBM.CBIOS for IBM PS/2 Computers and Compatibles. Part of the Phoenix Technologies' Technical Reference Series.>ģwEŅIR r€Ł€”rāUĒ9©żo€‚€€‚‚€€‚ƒ‚ƒ‚ƒ‚ƒ‚ƒ‚ƒ‚’Also contained in the ROM is a PowerOn Self Test (POST) which, after power up or front panel reset, detects system failures and configuration errors.Some of the options the ROM based SETUP Program allows the user set include:Set the power-on passwordSelect Numlock on or off after power-upEnable or disable the Turbo/De-Turbo modesMap the VGA BIOS to C0000H and E0000HEnabling or disabling the VGA Pass through connectorEnabled or disabled memory between 512KB and 640KBŌ‹”G¦KI `€€v "”rāUĒ9©żo€ƒ‚ƒ‚ƒ‚ƒƒ‚ƒ‚ƒƒ‚‚€‚’Selecte drive types 2&3 or 48&49 as user definable drive typesSelect Grey Scale or only Monochrome video modes for a monochrome VGA monitorOptional adapter ROMs located between C0000H and DFFFFH can be independently shadowed on 16K address boundariesSystem and Video BIOS can be separately shadowed into write-protected DRAM on power-up to improve system performance.See Also:–OŅI J€‰€”rāUĒ9©żo€‚‚‚‚€‚’The level of sound may be adjusted from not audible to loud with 5 levels in between.Note: Use of the "HOT" keys may be prohibited by an operating system or application software.See Also:’Ky„ †G#^€–W5 "€€ćäJŲŖ€‰‚’€:€‚’’’SETUP - Default SettingsDefault settings of the System SETUP Program”M{…”†G#^€šW5 "€€ć²R²L€‰‚’€(€‚’’’System SecurityInformation about securing access to the 300SX20 systemˆA †)‡G#^€‚W5 "€€ć/@«s€‰‚’€"€‚’’’PC UtilitiesInformation about the PC_Util software package…>”†®‡G#^€|W5 "€€ć*€‰‚’€6€‚’’’DeTurbo ImplementationHow System DeTurbo is implemented$)‡Ņ‡" €€€’G®‡ˆ1ī„‰Ɓ’’’’ˆĒÄIntegrated I/O Devices†;Ņ‡ŸŠK d€w€”rāUĒ9©żo€‚€‚‚‚€€‚€€‚’On-Board Input and Output DevicesAccesses to all "AT" or "PS/2" onboard I/O resources are, at a minimum, the normal 8MHz "AT" bus cycle. A single device, the WD16C552 DUART/BIDIR PORT controller, is used to support both of the serial ports and the parallel port.DMA ControllerThe DMA memory controller supports the full 16 Megabyte memory address range with a clock rate of up to 16MHz. The 300SX20 supports the normal 7 DMA channels with channels 2 and 6 being used for the floppy disk controller and hard disk drives, respectively, when they are enabled.4ˆ M h€i€”rāUĒ9©żo€‚€‚€‚‚€€€ €‚’Serial PortsTwo 9pin RS232C serial ports are provided. These can be enabled and disabled using the ROM based SETUP Program.The WD16C552 Serial Controller is connected to the AT bus and uses a 16byte FIFO interface that supports 16bit software and can provide BAUD rates of 300, 1200, 2400, 9600, 19,200, 38,400 and 56,000 bytes per second. Note that the Phoenix BIOS only supports BAUD rates up to 9600 BAUD. The DOS "Mode" command uses the BIOS and is therefor limited to 9600 BAUD. Applications that do not use the BIOS can use the higher rates.‹2ŸŠ«Y €€e€”rāUĒ9©żo€‚€€‚‚€‚€€€€ €€€‚’RS232 cable lengths should not exceed 15.24 meters (50 feet). The serial ports have surge protection devices connected to them to reduce failures caused by electrical damage from external transients.Parallel PortOne 25pin parallel port is provided as LPT1 only. This port can be enabled and disabled or set to either standard (Centronics compatible) or bidirectional (PS/2 Compatible) operation by the ROM based SETUP Program. The parallel port uses the assigned IRQ (either IRQ5 or IRQ7), even when it is programmed to operate in polled mode.®T eĀZ ‚€©€”rāUĒ9©żo€‚€‚€€€€€‚‚€‚€€«eĀŅ‡€‚’PS/2 Keyboard PortAn on-board PS/2 style keyboard interface is provided with a standard miniature 6pin connector. This is controlled by the 8742 micro-controller incorporating Phoenix Keyboard Controller firmware. AT style keyboards can be used if a ATtoPS/2 converter is used.PS/2 Mouse PortAn on-board PS/2 style mouse port is provided with a standard miniature 6pin connector. The interrupt for the mouse (IRQ12) can be disabled using the ROM based SETUP Program to allow an ISABus resource to use the interrupt. Disabling the mouse interrupt disables the on-board mouse.¬b«ÄJ b€Å€”rāUĒ9©żo€‚€‚€€€‚‚€‚’SpeakerAn onboard speaker is provided so that no cabling is required. The speaker can be enabled or disabled using the ROM based SETUP Program. The speaker provides error code information during POST if the system can not use the video interface. A user may also program the Speaker using the IBM AT standard I/O Port 61H protocol.See Also:’KeĀ£ÄG#^€–,ķ "€€ćäJŲŖ€‰‚’€:€‚’’’SETUP - Default SettingsDefault settings of the System SETUP Program$ÄĒÄ" €€€’C£Ä Å1K £W’’’’ ÅSystem Peripherals]ĒÄgĒE X€1€”rāUĒ9©żo€‚€‚‚‚€‚€‚’System PeripheralsThe cables between the 300SX20 baseboard and the peripheral drives (floppy disk controller and IDE hard disk drives) are labeled, but are not keyed.Floppy ControllerThis device provides onboard control for two drives connected to the floppy drive interface. These may be either 3.5 inch floppy disk drives (using either the 720KB or 1.44MB format) and or 5.25 inch floppy disk drives (using a 360KB or 1.2MB format). With 5.25 inch 1.2MB drives it supports both double density and high density diskettes.|. ÅćÉN j€]€”rāUĒ9©żo€‚€€‚‚€€€€‚‚‚’The floppy controller provides autodetection of media type and the onboard floppy disk drives can be enabled or disabled using the ROM based SETUP Program.The 82077AA-1 version of the floppy controller allows the system to support fast streaming tape drives connected to the floppy interface. Initial systems did not support fast streaming tape drives. PBA Versions 511893-003 or later include the 82077AA-1 floppy controller.The S300SX202F configuration includes a 3.5 inch floppy disk drive cabled as drive A: in the upper peripheral bay.U gĒ8ĢH ^€€”rāUĒ9©żo€‚€‚€‚‚€‚€‚’Mass Storage DevicesA standard 40pin "AT compatible" IDE hard disk drive interface is provided on the baseboard. The hard disk drive(s) can be enabled or disabled using the ROM based SETUP program. The BIOS will support up to two hard disk drives, but cabling and mounting hardware from Intel only support a single IDE drive.Peripheral BaysThe 300SX20 supports 3 builtin peripheral bays with features such as easier front loading and a universal bracket for hard disk drive installation. The bays included are:”OćÉŁĪR r€Ÿ€”rāUĒ9©żo€‚ƒƒƒ‚ƒƒƒƒ‚ƒƒ‚ƒƒƒƒ‚ƒƒ‚ƒƒƒƒ‚‚‚’Top Bay:1- Third-Height (1.0"), 5.25" wide, Exposed baySupports "front loading" with slides once system top cover is removed.Middle Bay:1- Half-Height (1.625"), 5.25" wide, Exposed baySupports "front loading" with slides once system top cover is removed.Bottom Bay:1- Half-Height (1.625"), 3.5" wide, Internal bayWith a universal bracket for mounting various 3.5 inch hard disk drives.Both exposed bays can support 5.25 inch or 3.5 inch devices, with proper mounting and front bezel hardware. The third-height exposed bay is located above the half-height bays.H8Ģ!Ļ: D€€”rāUĒ9©żo€‚€‚’See Also:‹>ŁĪ¬ĻM#j€|,5 (€€ć3_Ŗր‰€‚’€6€€‚’’’Floppy Carrier IssuesKnown Issues with Floppy Carrier¦Y!Ļ^M#j€²,5 (€€ć€³’É€‰€‚’€@€€‚’’’Flopp¬Ļ^ĒÄy Controller VersionsDescription of differences in Intel Floppy ControllersœU¬ĻśG#^€Ŗ,5 "€€ć°éI9€‰‚’€>€‚’’’Orderable Spare Parts ListPart numbers for drive mounting and cabling hardware$^" €€€’Kśi1< Ɓ’’’’iZ Floppy Controller Versionsš„+ $€į€€€‚‚‚‚‚’Floppy Disk Drive Controller ChangesIntel Corporation has made a number of enhancements to its floppy controller family. Several OPD products incorporate various versions of these devices and this has caused some confusion as to what features are supported on which products.This document will outline the major differences between the various floppy controller revisions and also detail which versions of the floppy controllers are used on the various PBA versions on the Intel systems.X1iÜ' €b€€‚€‚’Floppy Disk Controller: Supported Features:|„Ż…#Ś€ųx‹œ§œ€€€‚’€€‚’€0€‚’€j€‚’€Ę€‚’€ä€‚’’’Device1MB Xfer RateFast Streaming Tape SupportPerpendicular Recording Support (4MB floppy)CompatibilityComments§"Ü„…#Ś€Dx‹œ§œ€€€‚’€€‚’€€‚’€ €‚’€(€‚’€0€‚’’’82072NoNoNoATObsoleteĄ;ŻD…#Ś€vx‹œ§œ€€€‚’€€‚’€J€‚’€R€‚’€Z€‚’€b€‚’’’82072-1Yes (specific modes only)NoNoATObsolete”„å…#Ś€8x‹œ§œ€€€‚’€€‚’€€‚’€$€‚’€,€‚’€4€‚’’’82077-1NoNoNoAT”D†…#Ś€8x‹œ§œ€€€‚’€€‚’€€‚’€$€‚’€,€‚’€4€‚’’’82077-5NoNoNoAT©$å/…#Ś€Hx‹œ§œ€€€‚’€€‚’€€‚’€&€‚’€.€‚’€D€‚’’’82077AAYesNoNoAT & PS/2¹4†č…#Ś€hx‹œ§œ€€€‚’€€‚’€"€‚’€,€‚’€6€‚’€L€‚’’’82077AA-1YesYesYesAT & PS/2Improved PLLr&/Z L f€M€€‚€‚€ƒƒƒƒ‚ƒƒƒ‚ƒƒƒ‚ƒƒƒ‚ƒƒƒƒ‚ƒƒƒƒ‚ƒƒƒƒƒ‚’Intel MicroComputer to Floppy Controller Cross Reference Chart:SystemPBA NumberFloppy Controller300SX (16Mhz)500183-any82072300SX (16Mhz)502951-any82072300SX (16Mhz)511337-any82077AA-1300SX20511893-00282077-1300SX20511893-00382077AA-1DT386/33HAny82077AA-1Ič£ 1ŽW¼ ’’’’£ Ū†Power Supply InformationąZ Į > J€Į€”rāUĒ9©żo€‚‚€‚‚‚’Power SupplyAn 145 Watt 90132 VAC (6 Amps AC) or 180264 VAC (4 Amps AC) 4763Hz switch able power supply is supplied to meet the requirements of the on-board resources and any ATBus cards that might be included into the system. The cables from the power supply are both labeled and keyed to reduce the chance of damage due to user error. The 300SX20 uses a TEAPO Electronic Corporation power supply model # TP441S1A.The Power Supply supports the following output ratings:9£ ś 6 <€€”rāUĒ9©żo€‚’WĮ ½#J®ŅŲ Ų × €€’<€€”rāUĒ9©żo€‚’8€$€”rāUĒ9©żo‚’8€\€”rāUĒ9©żo‚’6€’€”rāUĒ9©żo‚’’’Output VoltageMaximumContinuous CurrentPeak Surgefor 15 secondsMinimum LoadŅ#ś ąÆ#.FŅŲ Ų × <€€”rāUĒ9©żo€‚’6€€”rāUĒ9©żo‚’6€,€”rāUĒ9©żo‚’6€2€”rāUĒ9©żo‚’’’+5 Volts18.0 Amps-2.5 AmpsŹŖÆ#.6ŅŲ Ų × <€€”rāUĒ9©żo€‚’6€€”rāUĒ9©żo‚’6€*€”rāUĒ9©żo‚’6€0€”rāUĒ9©żo‚’’’-5 Volts0.3 Amps--Ł*ą@Æ#.TŅŲ Ų × <€€”rāUĒ9©żo€‚’6€€Ŗ@Z ”rāUĒ9©żo‚’6€,€”rāUĒ9©żo‚’6€@€”rāUĒ9©żo‚’’’+12 Volts4.2 Amps6.0 Amps0.5 AmpsĖŖZAÆ#.8ŅŲ Ų × <€€”rāUĒ9©żo€‚’6€€”rāUĒ9©żo‚’6€,€”rāUĒ9©żo‚’6€2€”rāUĒ9©żo‚’’’-12 Volts0.3 Amps--埏@?EF Z€?€”rāUĒ9©żo€‚€€‚‚€€‚’Intel recommends using a 25 Watt 25 Ohm 1% load resister connected to the +12 volt output (use the drive power cable for access to the +12 volt output) to ensure minimum load when no hard disk drives are used. Without the minimum +12 volt output load the user may see a slight distortion of the displayed video (waves at edges) because the Video DAC is sensitive to power supply regulation.A female auxiliary AC power outlet is provided at the rear of the system so that, with the right adapter, the system monitor can be plugged into the 300SX20. This simplifies the poweron sequence by turning the monitor on or off with the base system. The voltage output from the auxiliary power connector corresponds to the system's input AC voltage as set with the 115/220 switch (i.e., if AC input voltage is set to 220 volts using the 115/220 switch then the auxiliary power connector output voltage will be 220 volts AC).ź«ZA)F? L€W€”rāUĒ9©żo€‚€€‚‚’The table below lists the current required by the different subsystems, maximum system current requirements and the maximum and minimum amount of available current.j‡?E“Gć#”3œcœœ€€’<€€”rāUĒ9©żo€‚’8€D€”rāUĒ9©żo‚’6€v€”rāUĒ9©żo‚’8€¦€”rāUĒ9©żo‚’8€Ś€”rāUĒ9©żo‚’’’Subsystem / System Power Usage+5 Volts Current Usage-5 Volts Current Usage+12 Volts Current Usage-12 Volts Current Usage4`)FĒHŌ#xĄ3œcœœ>€€”rāUĒ9©żo€‚’6€V€”rāUĒ9©żo‚’6€t€”rāUĒ9©żo‚’6€„€”rāUĒ9©żo‚’6€¢€”rāUĒ9©żo‚’’’Baseboard with 8 1Meg SIMMS and a 387SX6.5 Amps Max.0 Amps0.1 Amps Max.0.1 Amps Max.5a“GüIŌ#xĀ3œcœœ>€€”rāUĒ9©żo€‚’6€X€”rāUĒ9©żo‚’6€v€”rāUĒ9©żo‚’6€†€”rāUĒ9©żo‚’6€¤€”rāUĒ9©żo‚’’’Baseboard with 8 1Meg SIMMS and no 387SX6.3 Amps Max.0 Amps0.1 Amps Max.0.1 Amps Max.4`ĒH0KŌ#xĄ3œcœœ>€€”rāUĒ9©żo€‚’6€X€”rāUĒ9©żo‚’6€t€”rāUĒ9©żo‚’6€„€”rāUĒ9©żo‚’6€¢€”rāUĒ9©żo‚’’’Baseboard with 2 1Meg SIMMS and no 387SX4.3 Amps Max0 Amps0.1 Amps Max.0.1 Amps Max.$QüITLÓ#v¢3œcœœ<€€”rāUĒ9©żo€‚’6€4€”rāUĒ9©żo‚’6€r€”rāUĒ9©żo‚’6€‚€”rāUĒ9©żo‚’6€’€”rāUĒ9©żo‚’’’3.5" 1.44MB TEAC Floppy0.8 Amps Max. 0.007 Amps Min.0 Amps0 Amps0 AmpsR0K¦MÓ#vž3œcœœ<€€”rāUĒ9©żo€‚’6€F€”rāUĒ9©żo‚’6€‚€”rāUĒ9©żo‚’6€’€”rāUĒ9©żo‚’6€ī€”rāUĒ9©żo‚’’’Quantum 40/80 MB hard disk drive0.65 Amps Max. 0.5 Amps Min.0 Amps1.60 Amps Peak 0.80 Amps Max. 0.50 Amps Min.0 Ampsā TLˆNÖ#|3œcœœ<€€”rāUĒ9©żo€‚’<€€”rāUĒ9©żo€‚’6€ €”rāUĒ9©żo‚’6€€”rāUĒ9©żo‚’6€€”rāUĒ9©żo‚’’’<f¦MÄOÖ#|Ģ3œcœœ<€€”rāUĒ9©żo€‚’<€>€”rāUĒ9©żo€‚’6€`€”rāUĒ9©żo‚’6€p€”rāUĒ9©żo‚’6€®€”rāUĒ9©żo‚’’’Maximum System Current Usage7.95 Amps Max.0 Amps1.70 Amps Peak 0.90 Amps Max.0.1 Amps Max.ā ˆN²€Ö#|3œcœœ<€€”rāÄO²€Z UĒ9©żo€‚’<€€”rāUĒ9©żo€‚’6€ €”rāUĒ9©żo‚’6€€”rāUĒ9©żo‚’6€€”rāUĒ9©żo‚’’’w™ÄO)‚Ž#Š33œcœœJ€€”rāUĒ9©żo€€€‚’<€¢€”rāUĒ9©żo€‚’6€Ę€”rāUĒ9©żo‚’6€Ś€”rāUĒ9©żo‚’6€”rāUĒ9©żo‚’’’Minimum Available Current (Power Supply Maximum minus Maximum System Usage)10.05 Amps Max.0.3 Amps4.3 Amps Peak 3.3 Amps Max.0.2 Amps Max.ā ²€ ƒÖ#|3œcœœ<€€”rāUĒ9©żo€‚’<€€”rāUĒ9©żo€‚’6€ €”rāUĒ9©żo‚’6€€”rāUĒ9©żo‚’6€€”rāUĒ9©żo‚’’’v˜)‚„Ž#Š13œcœœJ€€”rāUĒ9©żo€€€‚’<€¢€”rāUĒ9©żo€‚’6€Ä€”rāUĒ9©żo‚’6€Ų€”rāUĒ9©żo‚’6€”rāUĒ9©żo‚’’’Maximum Available Current (Power Supply Maximum minus Minimum System Usage)13.7 Amps Max.0.3 Amps5.9 Amps Peak 4.1 Amps Max.0.2 Amps Max.Ž ƒ_…Ó#v3œcœœ<€€”rāUĒ9©żo€‚’6€€”rāUĒ9©żo‚’6€ €”rāUĒ9©żo‚’6€€”rāUĒ9©żo‚’6€€”rāUĒ9©żo‚’’’Er„¤†Ó#vä3œcœœ<€€”rāUĒ9©żo€‚’6€l€”rāUĒ9©żo‚’6€Ø€”rāUĒ9©żo‚’6€¼€”rāUĒ9©żo‚’6€Š€”rāUĒ9©żo‚’’’Maximum Current Available from any one ISA Bus Slot4.5 Amps-16bit 3.0 Amps-8bit0.3 Amps1.5 Amps0.2 Amps7_…Ū†5 :€€”rāUĒ9©żo€’@¤†‡1Ź ’’’’‡„System Security¢PŪ†½ŠR r€”€”rāUĒ9©żo€‚€‚‚‚€€‚‚€€€€‚’System SecurityThere are three methods used to secure the 300SX20 System.The first is a chassis lock using a key switch on the front panel. This prevents unwanted access to the internal compartment of the 300SX20 where the password clear jumper (J25) is located. In addition, it prevents someone from removing or modifying add-in cards or peripherals. The front panel key lock does not disable keyboard input.The second method used to secure the 300SX20 is a password provided during power-up. If the password clear jumper (J25) is set to "KEEP" and a valid password has been entered, using the ROM based SETUP program, the system will prompt for a password every time the system is rebooted. The system will continue to prompt for a password until the password is cleared at power-up or the password jumper is moved to "CLEAR".-懟ŒJ b€Ē€”rāUĒ9©żo€‚€€‚‚‚ƒ‚ƒ‚‚‚ƒ‚ƒ‚’The password can be cleared or changed when the system prompts for the password by following the steps below:1) To remove a password:At the "Enter password:" prompt type the current password followed by a forward slash character.Example, "Enter password: current_password/".2) To change a password:At the "Enter password:" prompt type the current password, a forward slash, the new password, another forward slash, the new password again and a carriage return. :ę½Š$T v€Ķ€”rāUĒ9©żo€ƒ‚‚€€‚‚‚‚€‚ć/@«s€‰ƒƒƒ‚’Example, "Enter Password: current_password/new_password/new_password".The third method is to use a utility called PC_Util to lock out keyboard input and set up a network password.In addition, many third party software packages are available on the market to lock keyboard input and perform a number of security enhancements such as file protection and network access.See Also:PC UtilitiesFor information regarding the use and features of PC_Util software packageCźŒ„> L€†€”rāUĒ9©żoć &i)€‰ƒƒƒ’JumpersJumper Description Table for information on using J25O$ Ą1¼ s‚’’’’ ĄJĀSystem Chassis and Front Panel„ Ą„>ņ„JĀL f€å€”rāUĒ9©żo€‚€‚€‚€‚‚€‚€‚’System Chassis and Front PanelSystem ChassisThe 300SX20 is housed in a "Small Footprint" chassis that weighs about 12.3 Kilograms (27 pounds). To provide a high quality product the chassis is fabricated using Electro-Galvanized steel.Front PanelThe front panel includes the reset and power-on/off switches for easy access. Hard Disk active and PowerOn LED indicators are also provided. A chassis lock is included on the front panel that secures the top cover to the system chassis.L Ą–Ā1œī†½ ’’’’–ĀęSystem Baseboard Connectors ČJĀ£ĆE X€‘€”rāUĒ9©żo€‚€‚ć ^ŹT‰‚‚‚‚’System Baseboard ConnectorsTo view a picture of the system board that shows connector select Display System BoardThe following table lists each baseboard connector and its general function.Å.–ĀhÄ—#ž€\Ž] „ €€’<€€”rāUĒ9©żo€‚’6€€”rāUĒ9©żo‚’6€H€”rāUĒ9©żo‚’’’IdentifierApproximate LocationFunction±&£ĆÅ‹#ę€LŽ] „ <€€”rāUĒ9©żo€‚’6€ €”rāUĒ9©żo‚’6€€”rāUĒ9©żo‚’’’J1Near J6Factory test connectorµ*hÄĪÅ‹#ę€TŽ] „ <€€”rāUĒ9©żo€‚’6€ €”rāUĒ9©żo‚’6€ €”rāUĒ9©żo‚’’’J2I/O Panel6-pin PS/2 Keyboard port²'Å€Ę‹#ę€NŽ] „ <€€”rāUĒ9©żo€‚’6€ €”rāUĒ9©żo‚’6€ €”rāUĒ9©żo‚’’’J3I/O Panel6-pin PS/2 Mouse portµ*ĪÅ5Ē‹#ę€TŽ] „ <€€”rāUĒ9©żo€‚’6€ €”rāUĒ9©żo‚’6€ €”rāUĒ9©żo‚’’’J4I/O Panel9-pin Serial port (COM1)µ*€ĘźĒ‹#ę€TŽ] „ <€€”rāUĒ9©żo€‚’6€ €”rāUĒ9©żo‚’6€ €”rāUĒ9©żo‚’’’J4I/O Panel9-pin Serial port (COM2)ø-5Ē¢Č‹#ę€ZŽ] „ <€€”rāUĒ9©żo€‚’6€ €”rāUĒ9©żo‚’6€ €”rāUĒ9©żo‚’’’J5I/O Panel25-pin Parallel port (LPT1)³(źĒUÉ‹#ę€PŽ] „ <€€”rāUĒ9©żo€‚’6€ €”rāUĒ9©żo‚’6€ €”rāUĒ9©żo‚’’’J6I/O Panel15-pin Analog VGA portĄ5¢ČŹ‹#ę€jŽ] „ <€€”rāUĒ9©żo€‚’6€ €”rāUĒ9©żo‚’6€F€”rāUĒ9©żo‚’’’J7Between ISA Connector and J5Remote Reset pinÅ:UÉŚŹ‹#ę€tŽ] „ <€€”rāUĒ9©żo€‚’6€&€”rāUĒ9©żo‚’6€L€”rāUĒ9©żo‚’’’J8, J9, J10, J11Near SIMM socketsISA Bus ConnectorsĖ@Ź„Ė‹#ꀀŽ] „ <€€”rāUĒ9©żo€‚’6€ €”rāUĒ9©żo‚’6€N€”rāUĒ9©żo‚’’’J12Between ISA Connector and DUART26-pin VGA Pass throughŹ?ŚŹoĢ‹#ę€~Ž] „ <€€”rāUĒ9©żo€‚’6€€”rāUĒ9©żo‚’6€@€”rāUĒ9©żo‚’’’J13, J14Near SIMMs and BIOSPower Supply Input ConnectorsÄ9„Ė3Ķ‹#ę€rŽ] „ <€€”rāUĒ9©żo€‚’6€ €”rāUĒ9©żo‚’6€6€”rāUĒ9©żo‚’’’J15Near SIMMs and BIOS34-pin Floppy Disk Interfaceŗ/oĢķĶ‹#ę€^Ž] „ <€€”rāUĒ9©żo€‚’6€ €”rāUĒ9©żo‚’6€2€”rāUĒ9©żo‚’’’J16Near J15 and BIOS40-pin IDE InterfaceĀ73ĶÆĪ‹#ę€nŽ] „ <€€”rāUĒ9©żo€‚’6€ €”rāUĒ9©żo‚’6€(€”rāUĒ9©żo‚’’’J21Near SpeakerPins -> Function; 13 pins totalŗ,ķĶiĻŽ#ģ€Xö „ <€€”rāUĒ9©żo€‚’<€€”rāUĒ9©żo€‚’6€ €”rāUĒ9©żo‚’’’1-2 -> Front Panel Reset connector¹+ÆĪ.Ž#ģ€Vö „ <€€”rāUĒ9©żo€‚’<€€”rāUĒ9©żo€‚’6€ €”rāUĒ9©żo‚’’’4-7iĻ.JĀ -> External Speaker Connector¶(iĻäŽ#ģ€Pö „ <€€”rāUĒ9©żo€‚’<€€”rāUĒ9©żo€‚’6€ €”rāUĒ9©żo‚’’’9-13 -> Power-on LED Connectorŗ,.žŽ#ģ€Xö „ <€€”rāUĒ9©żo€‚’<€€”rāUĒ9©żo€‚’6€ €”rāUĒ9©żo‚’’’Clipped pins: 3,5,6,8 unused; 10 key–ä4Ž#ģ€Ž] „ <€€”rāUĒ9©żo€‚’<€€”rāUĒ9©żo€‚’6€ €”rāUĒ9©żo‚’’’½/žńŽ#ģ€^Ž] „ <€€”rāUĒ9©żo€‚’<€€”rāUĒ9©żo€‚’6€€”rāUĒ9©żo‚’’’Near J214-pin Disk Active LED Connector¾04ÆŽ#ģ€`Ž] „ <€€”rāUĒ9©żo€‚’<€€”rāUĒ9©żo€‚’6€€”rāUĒ9©żo‚’’’Near J224-pin External Battery Connector7ńę5 :€€”rāUĒ9©żo€’EÆ+1”ņ Ł ’’’’+‡System Board Picture\ę‡A R€8€”rāUĒ9©żo€‚‚†"€‚’System Board OverviewI+Š1D½ _ !’’’’ŠƁSIMM Configuration Guide:õ‡ E X€ė€”rāUĒ9©żo€‚€‚‚‚€€‚‚’SIMM Configuration GuideSIMM DRAM Bank Configuration and Interleaving Guide:Each bank represents two "n" x 9 SIMMs (16-bits + 2 parity) where "n" is the number of bits stored in each RAM. SIMMS must be installed in like pairs of two.h>Šr*#$‚|LOOO¤ń€€’<€€”rāUĒ9©żo€‚’6€€”rāUĒ9©żo‚’6€$€”rāUĒ9©żo‚’6€4€”rāUĒ9©żo‚’6€D€”rāUĒ9©żo‚’6€^€”rāUĒ9©żo‚’<€v€”rāUĒ9©żo€‚’’’Bank 0Bank 1Bank 2Bank 3Memory SizeInterleave0 ¢#‚*LOOO¤uv<€€”rāUĒ9©żo€‚’6€€”rāUĒ9©żo‚’6€€”rāUĒ9©żo‚’6€€”rāUĒ9©żo‚’6€€”rāUĒ9©żo‚’6€€”rāUĒ9©żo‚’6€$€”rāUĒ9©żo‚’’’AABBAB8rŚ #‚:LOOO¤uv<€€”rāUĒ9©żo€‚’6€€”rāUĒ9©żo‚’6€€”rāUĒ9©żo‚’6€€”rāUĒ9©żo‚’6€ €”rāUĒ9©żo‚’6€.€”rāUĒ9©żo‚’6€4€”rāUĒ9©żo‚’’’256K---0.5MB1-; ¢ #‚@LOOO¤uv<€€”rāUĒ9©żo€‚’6€€”rāUĒ9©żo‚’6€€”rāUĒ9©żo‚’6€ €”rāUĒ9©żo‚’6€&€”rāUĒ9©żo‚’6€4€”rāUĒ9©żo‚’6€:€”rāUĒ9©żo‚’’’256K256K--1.0MB2->#Ś S #‚FLOOO¤uv<€€”rāUĒ9©żo€‚’6€€”rāUĒ9©żo‚’6€€”rāUĒ9©żo‚’6€&€”rāUĒ9©żo‚’6€,€”rāUĒ9©żo‚’6€:€”rāUĒ9©żo‚’6€@€”rāUĒ9©żo‚’’’256K256K256K-1.5MB21@% “ #‚JLOOO¤ń<€€”rāUĒ9©żo€‚’6€€”rāUĒ9©żo‚’6€€”rāUĒ9©żo‚’6€&€”rāUĒ9©żo‚’6€2€”rāUĒ9©żo‚’6€@€”rāUĒ9©żo‚’6€F€”rāUĒ9©żo‚’’’256K256K256K256K2.0MB46S É#‚6LOOO¤uv<€€”rāUĒ9©żo€‚’6€ €”rāUĒ9©żo‚’6€€”rāUĒ9©żo‚’6€€”rāUĒ9©żo‚’6€€”rāUĒ9©żo‚’6€*€”rāUĒ9©żo‚’6€0€”rāUĒ9©żo‚’’’1M---2.0MB1-9“ @#‚<LOOO¤uv<€€”rāUĒ9©żo€‚’6€€”rāUĒ9©żo‚’6€€”rāUĒ9©żo‚’6€€”rāUĒ9©żo‚’6€"€”rāUĒ9©żo‚’6€0€”rāUĒ9©żo‚’6€6€”rāUĒ9©żo‚’’’256K1M--2.5MB1-É@‡<!ÉJA#‚BLOOO¤uv<€€”rāUĒ9©żo€‚’6€€”rāUĒ9©żo‚’6€€”rāUĒ9©żo‚’6€"€”rāUĒ9©żo‚’6€(€”rāUĒ9©żo‚’6€6€”rāUĒ9©żo‚’6€<€”rāUĒ9©żo‚’’’256K256K1M-3.0MB217@B#‚8LOOO¤uv<€€”rāUĒ9©żo€‚’6€ €”rāUĒ9©żo‚’6€€”rāUĒ9©żo‚’6€€”rāUĒ9©żo‚’6€€”rāUĒ9©żo‚’6€,€”rāUĒ9©żo‚’6€2€”rāUĒ9©żo‚’’’1M1M--4.0MB2-:JA»C#‚>LOOO¤uv<€€”rāUĒ9©żo€‚’6€ €”rāUĒ9©żo‚’6€€”rāUĒ9©żo‚’6€€”rāUĒ9©żo‚’6€$€”rāUĒ9©żo‚’6€2€”rāUĒ9©żo‚’6€8€”rāUĒ9©żo‚’’’1M1M256K-4.5MB21="BųD#‚DLOOO¤uv<€€”rāUĒ9©żo€‚’6€€”rāUĒ9©żo‚’6€€”rāUĒ9©żo‚’6€"€”rāUĒ9©żo‚’6€*€”rāUĒ9©żo‚’6€8€”rāUĒ9©żo‚’6€>€”rāUĒ9©żo‚’’’256K256K1M1M5.0MB228»C0F#‚:LOOO¤uv<€€”rāUĒ9©żo€‚’6€ €”rāUĒ9©żo‚’6€€”rāUĒ9©żo‚’6€€”rāUĒ9©żo‚’6€ €”rāUĒ9©żo‚’6€.€”rāUĒ9©żo‚’6€4€”rāUĒ9©żo‚’’’1M1M1M-6.0MB218ųDhG#‚:LOOO¤ń<€€”rāUĒ9©żo€‚’6€ €”rāUĒ9©żo‚’6€€”rāUĒ9©żo‚’6€€”rāUĒ9©żo‚’6€"€”rāUĒ9©żo‚’6€0€”rāUĒ9©żo‚’6€6€”rāUĒ9©żo‚’’’1M1M1M1M8.0MB460FžH#‚6LOOO¤uv<€€”rāUĒ9©żo€‚’6€ €”rāUĒ9©żo‚’6€€”rāUĒ9©żo‚’6€€”rāUĒ9©żo‚’6€€”rāUĒ9©żo‚’6€*€”rāUĒ9©żo‚’6€0€”rāUĒ9©żo‚’’’4M---8.0MB1-9hG×I#‚<LOOO¤uv<€€”rāUĒ9©żo€‚’6€€”rāUĒ9©żo‚’6€€”rāUĒ9©żo‚’6€€”rāUĒ9©żo‚’6€"€”rāUĒ9©żo‚’6€0€”rāUĒ9©żo‚’6€6€”rāUĒ9©żo‚’’’256K4M--8.5MB1-<!žHK#‚BLOOO¤uv<€€”rāUĒ9©żo€‚’6€€”rāUĒ9©żo‚’6€€”rāUĒ9©żo‚’6€"€”rāUĒ9©żo‚’6€(€”rāUĒ9©żo‚’6€6€”rāUĒ9©żo‚’6€<€”rāUĒ9©żo‚’’’256K256K4M-9.0MB218×IKL#‚:LOOO¤uv<€€”rāUĒ9©żo€‚’6€ €”rāUĒ9©żo‚’6€€”rāUĒ9©żo‚’6€€”rāUĒ9©żo‚’6€€”rāUĒ9©żo‚’6€.€”rāUĒ9©żo‚’6€4€”rāUĒ9©żo‚’’’1M4M--10.0MB119K„M#‚<LOOO¤uv<€€”rāUĒ9©żo€‚’6€ €”rāUĒ9©żo‚’6€€”rāUĒ9©żo‚’6€€”rāUĒ9©żo‚’6€ €”rāUĒ9©żo‚’6€0€”rāUĒ9©żo‚’6€6€”rāUĒ9©żo‚’’’1M1M4M-12.0MB21:KL¾N#‚>LOOO¤uv<€€”rāUĒ9©żo€‚’6€ €”rāUĒ9©żo‚’6€€”rāUĒ9©żo‚’6€€”rāUĒ9©żo‚’6€"€”rāUĒ9©żo‚’6€2€”rāUĒ9©żo‚’6€8€”rāUĒ9©żo‚’’’1M1M1M4M14.0MB218„M €#‚:LOOO¤uv<€€”rāUĒ9©żo€‚’6€ €”rāUĒ9©żo‚’6€€”rāUĒ9©żo‚’6€€”rāUĒ9©żo‚’6€€”rāUĒ9©żo‚’6€.€”rāUĒ9©żo‚’6€4€”rāUĒ9©żo‚’’’4M4M--16.0MB2-¾N €‡£_¾NƁD V€æ€”rāUĒ9©żo€‚€ ‚€‚ƒ‚‚ƒ‚’Notes:1) An interleaving factor of 1 indicates no interleaving.2) The 1.0MB configuration (2nd from top) is a special case where 384K of memory above 640K is remapped to the end of memory at 1.0MB. This adds 384K of extended memory and makes the end of memory 1.384M. Shadow RAM is not available in this mode (i.e., Memory Roll Enabled).B €ń1ō(Ł Š "’’’’ńØSystem Memory Map5ėƁ&„J b€×€”rāUĒ9©żo€‚€‚‚‚‚‚‚€‚€‚’System Memory MapThe first table shows the maximum of available memory and the second table shows the memory usage with on-board resources enabled. These maps assumes a DOS environment.The maximum memory is 16MB because of the addressing limitations of the 386SX processor.All 16MB of memory can be installed on the base board using SIMMs.Maximum Free User Memory:Obtaining maximum free memory requires disabling the onboard video BIOS and enabling 640K Conventional memory.9ń_„6 <€€”rāUĒ9©żo€‚’ Q&„k…»#F¢Ŗ‚€€’<€€”rāUĒ9©żo€‚’6€J€”rāUĒ9©żo‚’6€p€”rāUĒ9©żo‚’6€|€”rāUĒ9©żo‚’’’Memory Offset of Starting AddressHEX Address RangeSizeUsage or Functionģ=_„W†Æ#.zŖ‚<€€”rāUĒ9©żo€‚’6€€”rāUĒ9©żo‚’6€,€”rāUĒ9©żo‚’6€0€”rāUĒ9©żo‚’’’16.384M 00FF-FFFFMaximum Memory Addressable by 386SXī?k…E‡Æ#.~Ŗ‚<€€”rāUĒ9©żo€‚’6€€”rāUĒ9©żo‚’6€D€”rāUĒ9©żo‚’6€P€”rāUĒ9©żo‚’’’16.256M00FE-0000 -> 00FF-FFFF128KSystem and Video BIOSūLW†@ˆÆ#.˜Ŗ‚<€€”rāUĒ9©żo€‚’6€€”rāUĒ9©żo‚’6€B€”rāUĒ9©żo‚’6€T€”rāUĒ9©żo‚’’’1.024M0010-0000 -> 00FD-FFFF15.232MMaximum On-Board Extended Memoryą1E‡ ‰Æ#.bŖ‚<€€”rāUĒ9©żo€‚’6€€”rāUĒ9©żo‚’6€>€”rāUĒ9©żo‚’6€H€”rāUĒ9©żo‚’’’960K000F-0000 -> 000F-FFFF64KSystem BIOSā3@ˆŠÆ#.fŖ‚<€€”rāUĒ9©żo€‚’6€€”rāUĒ9©żo‚’6€>€”rāUĒ9©żo‚’6€H€”rāUĒ9©żo‚’’’928K000E-8000 -> 000E-FFFF32KSETUP ProgramšA ‰ņŠÆ#.‚Ŗ‚<€€”rāUĒ9©żo€‚’6€€”rāUĒ9©żo‚’6€>€”rāUĒ9©żo‚’6€H€”rāUĒ9©żo‚’’’896K000E-0000 -> 000E-7FFF32KUnavailable High DOS Memoryļ@Šį‹Æ#.€Ŗ‚<€€”rāUĒ9©żo€‚’6€€”rāUĒ9©żo‚’6€>€”rāUĒ9©żo‚’6€J€”rāUĒ9©żo‚’’’640K000A-0000 -> 000D-FFFF256KAvailable High DOS Memoryė<ņŠĢŒÆ#.xŖ‚<€€”rāUĒ9©żo€‚’6€€”rāUĒ9©żo‚’6€>€”rāUĒ9©żo‚’6€F€”rāUĒ9©żo‚’’’639K0009-FC00 -> 0009-FFFF1KExtended BIOS Data AreaņCį‹¾Æ#.†Ŗ‚<€€”rāUĒ9©żo€‚’6€€”rāUĒ9©żo‚’6€>€”rāUĒ9©żo‚’6€J€”rāUĒ9©żo‚’’’512K0008-0000 -> 0009-FBFF127KExtended Conventional Memoryē8ĢŒ„ŽÆ#.pŖ‚<€€”rāUĒ9©żo€‚’6€ €”rāUĒ9©żo‚’6€:€”rāUĒ9©żo‚’6€F€”rāUĒ9©żo‚’’’0K0000-0000 -> 0007-FFFF512KConventional Memoryt%¾%ĀO l€K€”rāUĒ9©żo€‚€ ‚€ƒ€€‚‚ƒ€€‚’Notes:1) The address range from E-8000H to E-FFFFH always contains ROM code, but a memory manager such as QEMM386 or 386MAX may use this space. The system must be set to allow the user to enter SETUP at pre-boot only if this space is used. Otherwise the syst„Ž%ĀƁem will hang when SETUP is entered.2) Some 16-bit add-in cards only latch the top address lines and respond to any address request within its 128KB segment. Because of this, it is not possible to use two 16bit addin cards or a 16bit card with 8bit cards in the same 128KB memory segment (e.g., 0C-0000H to 0C-FFFFH), except for the case where two 16bit cards are being used and both decode all addresses so that there is no overlap of decoded addresses. 16-bit and 8-bit cards should not be used in the same 128KB address range.Ņ„ŽDÄM h€„€”rāUĒ9©żo€‚ƒ€€‚‚ƒ€€‚‚€‚’3) When the BIOS is shadowed it is copied into read only RAM preventing any unused ROM locations from being used as memory, even when it is shadowed.4) An additional 384K of on-board extended memory can be obtained by enabling memory roll in SETUP. This memory is added at the top of on-board extended memory. This feature is only available in 1 and 2 mega-byte configurations and when all shadowing is disabled.Maximum On-board Memory Requirements:9%Ā}Ä6 <€€”rāUĒ9©żo€‚’ NDĆŻ#Fœ¶5m¢€€’<€€”rāUĒ9©żo€‚’6€D€”rāUĒ9©żo‚’6€j€”rāUĒ9©żo‚’6€v€”rāUĒ9©żo‚’’’Memory Offset Starting AddressHEX Address RangeSizeUsage or Functionģ=}ÄrĘÆ#.z¶5m¢<€€”rāUĒ9©żo€‚’6€€”rāUĒ9©żo‚’6€,€”rāUĒ9©żo‚’6€0€”rāUĒ9©żo‚’’’16.384M 00FF-FFFFMaximum Memory Addressable by 386SX÷H†ÅiĒÆ#.¶5m¢<€€”rāUĒ9©żo€‚’6€€”rāUĒ9©żo‚’6€D€”rāUĒ9©żo‚’6€P€”rāUĒ9©żo‚’’’16.256M00FE-0000 -> 00FF-FFFF128KSystem and Video BIOS LocationūLrĘdČÆ#.˜¶5m¢<€€”rāUĒ9©żo€‚’6€€”rāUĒ9©żo‚’6€B€”rāUĒ9©żo‚’6€T€”rāUĒ9©żo‚’’’1.024M0010-0000 -> 00FD-FFFF15.232MMaximum On-Board Extended Memoryč9iĒLÉÆ#.r¶5m¢<€€”rāUĒ9©żo€‚’6€€”rāUĒ9©żo‚’6€>€”rāUĒ9©żo‚’6€H€”rāUĒ9©żo‚’’’960K000F-0000 -> 000F-FFFF64KPhoenix System BIOSź;dČ6ŹÆ#.v¶5m¢<€€”rāUĒ9©żo€‚’6€€”rāUĒ9©żo‚’6€>€”rāUĒ9©żo‚’6€H€”rāUĒ9©żo‚’’’928K000E-8000 -> 000E-FFFF32KPhoenix SETUP Programļ@LÉ%ĖÆ#.€¶5m¢<€€”rāUĒ9©żo€‚’6€€”rāUĒ9©żo‚’6€>€”rāUĒ9©żo‚’6€H€”rāUĒ9©żo‚’’’896K000E-0000 -> 000E-7FFF32KWestern Digital Video BIOS q6ŹEĢÆ#.ā¶5m¢<€€”rāUĒ9©żo€‚’6€€”rāUĒ9©żo‚’6€>€”rāUĒ9©żo‚’6€H€”rāUĒ9©żo‚’’’800K000C-8000 -> 000D-FFFF96KAvailable High DOS Memory or Off-board BIOS Location (BIOS can be shadowed)śK%Ė?ĶÆ#.–¶5m¢<€€”rāUĒ9©żo€‚’6€€”rāUĒ9©żo‚’6€>€”rāUĒ9©żo‚’6€H€”rāUĒ9©żo‚’’’768K000C-0000 -> 000C-7FFF32KOptional On-board Video BIOS Location`EĢNĪÆ#.Ą¶5m¢<€€”rāUĒ9©żo€‚’6€€”rāUĒ9©żo‚’6€>€”rāUĒ9©żo‚’6€H€”rāUĒ9©żo‚’’’736K000B-8000 -> 000B-FFFF32KVGA Display Memory (VGA Text Modes 0, 1, 2, 3, 4, 5 and 6)_?Ķ\ĻÆ#.¾¶5m¢<€€”rāUĒ9©żo€‚’6€€”rāUĒ9©żo‚’6€>€”rāUĒ9©żo‚’6€H€”rāUĒ9©żo‚’’’704K000B-0000 -> 000B-7FFF32KVGA and Monochrome Display Memory (VGA Monochrome Mode 7)cNĪzÆ#.Ę¶5m¢<€€”rāUĒ9©żo€‚’6€€”rāUĒ9©żo‚’6€>€”rāUĒ9©żo‚’6€H€”rāUĒ9©\ĻzƁżo‚’’’640K000A-0000 -> 000A-FFFF64KVGA Display Memory (Graphic Modes D, E, F, 10, 11, 12 and 13)ė<\ĻeÆ#.x¶5m¢<€€”rāUĒ9©żo€‚’6€€”rāUĒ9©żo‚’6€>€”rāUĒ9©żo‚’6€F€”rāUĒ9©żo‚’’’639K0009-FC00 -> 0009-FFFF1KExtended BIOS Data AreaņCzWÆ#.†¶5m¢<€€”rāUĒ9©żo€‚’6€€”rāUĒ9©żo‚’6€>€”rāUĒ9©żo‚’6€J€”rāUĒ9©żo‚’’’512K0008-0000 -> 0009-FBFF127KExtended Conventional Memoryę7e=Æ#.n¶5m¢<€€”rāUĒ9©żo€‚’6€ €”rāUĒ9©żo‚’6€:€”rāUĒ9©żo‚’6€D€”rāUĒ9©żo‚’’’0K0000-0000 -> 0007-FFFF512Conventional Memoryä•W!O l€+€”rāUĒ9©żo€‚€ ‚€ƒ€€‚‚ƒ€€‚’Notes:1) Not all video modes are normally used at the same time. Some memory may be saved by defining which video modes are to be used. Typically 0B0000H to 0B7FFFH is only used when a monochrome monitor is attached to the system, while both the text and graphics VGA modes are often used when a VGA monitor is attached.2) The option of re-mapping the video BIOS to 0C-0000H is provided for applications that require the video BIOS at that location. If you are not sure that your application requires the video BIOS to be located at 0C-0000H (most do not) then do not enable this option in SETUP. Not enabling video mapping to 0C-0000H saves 32K of memory. In any case, the on-board video BIOS will always located at 0E-0000H. When an application requires this option to be set and it is not it will generally display an error message indicating that the wrong type of video adapter is installed.‡?=ØH ^€€”rāUĒ9©żo€‚ƒ€€‚‚ƒ€€‚’3) The BIOS SETUP program provides for shadowing offboard ROM BIOS on 16K boundaries. This is available in memory located between 0C0000H and 0DFFFFH.4) Some memory managers, such as QEMM386, can move the extended BIOS data area from 09FC00H to lower memory to provide for more contiguous memory above DOS.G!ļ1‘_ #’’’’ļ/ƒSystem Interrupt Usage¦jØ• < H€Ō€”rāUĒ9©żo€‚€‚‚‚’System InterruptsThe following table and text identifies how each interrupt on the 300SX20 is used:^[ļó #ց¶ŠŒÕŒ‹‹€€’<€€”rāUĒ9©żo€‚’6€*€”rāUĒ9©żo‚’6€D€”rāUĒ9©żo‚’6€f€”rāUĒ9©żo‚’6€|€”rāUĒ9©żo‚’6€–€”rāUĒ9©żo‚’’’Interrupt RequestSystem OnlySystem or User3User OnlyISA Bus PinPriority Level"•  ÷#¾DŠŒÕŒ‹‹<€€”rāUĒ9©żo€‚’6€ €”rāUĒ9©żo‚’6€€”rāUĒ9©żo‚’6€2€”rāUĒ9©żo‚’6€6€”rāUĒ9©żo‚’6€>€”rāUĒ9©żo‚’’’NMIParity/IOCHECK1A11!*ó - ÷#¾TŠŒÕŒ‹‹<€€”rāUĒ9©żo€‚’6€€”rāUĒ9©żo‚’6€:€”rāUĒ9©żo‚’6€>€”rāUĒ9©żo‚’6€B€”rāUĒ9©żo‚’6€N€”rāUĒ9©żo‚’’’0Interval Timer Number 0None2' K÷#¾NŠŒÕŒ‹‹<€€”rāUĒ9©żo€‚’6€€”rāUĒ9©żo‚’6€4€”rāUĒ9©żo‚’6€8€”rāUĒ9©żo‚’6€<€”rāUĒ9©żo‚’6€H€”rāUĒ9©żo‚’’’1Keyboard Buffer fullNone3&- h÷#¾LŠŒÕŒ‹‹<€€”rāUĒ9©żo€‚’6€ €”rāUĒ9©żo‚’6€2€”rāUĒ9©żo‚’6€6€”rāUĒ9©żo‚’6€:€”rāUĒ9©żo‚’6€F€”rāUĒ9©żo‚’’’24Cascade from PIC#2None- K‹@÷#¾@ŠŒÕŒ‹‹<€€”rāUĒ9©żo€‚’6€€”rāUĒ9©żo‚’6€ €”rāUĒ9©żo‚’h‹@Ø6€*€”rāUĒ9©żo‚’6€.€”rāUĒ9©żo‚’6€8€”rāUĒ9©żo‚’’’3Serial Port#2B2512 h¢A÷#¾@ŠŒÕŒ‹‹<€€”rāUĒ9©żo€‚’6€€”rāUĒ9©żo‚’6€ €”rāUĒ9©żo‚’6€*€”rāUĒ9©żo‚’6€.€”rāUĒ9©żo‚’6€8€”rāUĒ9©żo‚’’’4Serial Port#1B2413"‹@»B÷#¾DŠŒÕŒ‹‹<€€”rāUĒ9©żo€‚’6€€”rāUĒ9©żo‚’6€ €”rāUĒ9©żo‚’6€.€”rāUĒ9©żo‚’6€2€”rāUĒ9©żo‚’6€<€”rāUĒ9©żo‚’’’5Parallel Port#2B2314¢AŠC÷#¾<ŠŒÕŒ‹‹<€€”rāUĒ9©żo€‚’6€€”rāUĒ9©żo‚’6€ €”rāUĒ9©żo‚’6€&€”rāUĒ9©żo‚’6€*€”rāUĒ9©żo‚’6€4€”rāUĒ9©żo‚’’’6Floppy DiskB2215"»BéD÷#¾DŠŒÕŒ‹‹<€€”rāUĒ9©żo€‚’6€€”rāUĒ9©żo‚’6€ €”rāUĒ9©żo‚’6€.€”rāUĒ9©żo‚’6€2€”rāUĒ9©żo‚’6€<€”rāUĒ9©żo‚’’’7Parallel Port#1B2116"ŠCF÷#¾DŠŒÕŒ‹‹<€€”rāUĒ9©żo€‚’6€€”rāUĒ9©żo‚’6€*€”rāUĒ9©żo‚’6€.€”rāUĒ9©żo‚’6€2€”rāUĒ9©żo‚’6€>€”rāUĒ9©żo‚’’’8Real Time ClockNone4#éDG÷#¾FŠŒÕŒ‹‹<€€”rāUĒ9©żo€‚’6€€”rāUĒ9©żo‚’6€ €”rāUĒ9©żo‚’6€.€”rāUĒ9©żo‚’6€8€”rāUĒ9©żo‚’6€@€”rāUĒ9©żo‚’’’9Video Chip-set2YesB45 F(H÷#¾*ŠŒÕŒ‹‹<€€”rāUĒ9©żo€‚’6€ €”rāUĒ9©żo‚’6€€”rāUĒ9©żo‚’6€€”rāUĒ9©żo‚’6€€”rāUĒ9©żo‚’6€$€”rāUĒ9©żo‚’’’10YesD36 G4I÷#¾*ŠŒÕŒ‹‹<€€”rāUĒ9©żo€‚’6€ €”rāUĒ9©żo‚’6€€”rāUĒ9©żo‚’6€€”rāUĒ9©żo‚’6€€”rāUĒ9©żo‚’6€$€”rāUĒ9©żo‚’’’11YesD47(HGJ÷#¾8ŠŒÕŒ‹‹<€€”rāUĒ9©żo€‚’6€ €”rāUĒ9©żo‚’6€€”rāUĒ9©żo‚’6€&€”rāUĒ9©żo‚’6€*€”rāUĒ9©żo‚’6€2€”rāUĒ9©żo‚’’’12PS/2 MouseD58$4IbK÷#¾HŠŒÕŒ‹‹<€€”rāUĒ9©żo€‚’6€ €”rāUĒ9©żo‚’6€.€”rāUĒ9©żo‚’6€2€”rāUĒ9©żo‚’6€6€”rāUĒ9©żo‚’6€B€”rāUĒ9©żo‚’’’13Math CoProcessorNone9#GJ|L÷#¾FŠŒÕŒ‹‹<€€”rāUĒ9©żo€‚’6€ €”rāUĒ9©żo‚’6€€”rāUĒ9©żo‚’6€2€”rāUĒ9©żo‚’6€6€”rāUĒ9©żo‚’6€>€”rāUĒ9©żo‚’’’14Fixed Disk CntlrD710 bK‰M÷#¾,ŠŒÕŒ‹‹<€€”rāUĒ9©żo€‚’6€ €”rāUĒ9©żo‚’6€€”rāUĒ9©żo‚’6€€”rāUĒ9©żo‚’6€€”rāUĒ9©żo‚’6€$€”rāUĒ9©żo‚’’’15YesD611T|LŻOQ p€€”rāUĒ9©żo€‚‚‚€ €‚ƒ€€‚‚ƒ€€‚’300SX20 Interrupt Usage Table.Notes:1) The NMI interrupt can be caused by an on-board parity error or by I/O Channel Check signal being active at the correct time on the ISA bus.2) Four interrupt requests are available for use by addin cards and do not require any changes in the BIOS SETUP screens. These include interrupt requests 9, 10, 11, 15. Interrupt request #9 may be used by the Western Digital chipset, if enabled by application software. By default it is not used by the video chipset.Fž‰M/ƒH ^€ż€”rāUŻO/ƒØĒ9©żo€‚ƒ€€‚‚ƒ€€‚’3) Interrupt requests in the "System or User" column must be (excluding IRQ9 and NMI) selected via the BIOS SETUP screens. Disabling the onboard resource allows the interrupt to be used by an ISA Bus add-in card, but prevents the operation of the onboard resource. These include interrupt requests 3, 4, 5, 6, 7, 12 and 14. This means that there is a maximum of 11 interrupt requests available at the ISA Bus for addin cards.4) Interrupt requests 0, 1, 2, 8 and 13 can not be used by an addin card. In PCXTbased systems interrupt request #2 was available for use on the XTBus. In ATBased systems it is not. Some older boards have an option to use interrupt request #2. This should not be selected when such a board is installed in a 300SX20 system.GŻOvƒ1üŠ ʁ $’’’’vƒČSystem I/O Address MapU/ƒĖƒ: D€6€”rāUĒ9©żo€‚€‚’System I/O Address MapĀ+vƒ„—#ž€VŁ×‡€€’<€€”rāUĒ9©żo€‚’6€*€”rāUĒ9©żo‚’6€>€”rāUĒ9©żo‚’’’I/O Address (Hex)FunctionI/O Device®#Ėƒ;…‹#ę€FŁ×‡<€€”rāUĒ9©żo€‚’6€€”rāUĒ9©żo‚’6€8€”rāUĒ9©żo‚’’’000-01FDMA Controller-182344“)„ļ…‹#ę€RŁ×‡<€€”rāUĒ9©żo€‚’6€€”rāUĒ9©żo‚’6€D€”rāUĒ9©żo‚’’’020-03FInterrupt Controller-182344Æ$;…ž†‹#ę€HŁ×‡<€€”rāUĒ9©żo€‚’6€€”rāUĒ9©żo‚’6€:€”rāUĒ9©żo‚’’’040-043System Timer, PIT82344¬!ļ…J‡‹#ę€BŁ×‡<€€”rāUĒ9©żo€‚’6€ €”rāUĒ9©żo‚’6€4€”rāUĒ9©żo‚’’’060Reset IRQ1 & IRQ1282344¶+ž†ˆ‹#ę€VŁ×‡<€€”rāUĒ9©żo€‚’6€€”rāUĒ9©żo‚’6€H€”rāUĒ9©żo‚’’’061-06FControl Port B, Odd Only82344¬!J‡¬ˆ‹#ę€BŁ×‡<€€”rāUĒ9©żo€‚’6€ €”rāUĒ9©żo‚’6€6€”rāUĒ9©żo‚’’’064Keyboard Controller8742ŠEˆ|‰‹#ꀊŁ×‡<€€”rāUĒ9©żo€‚’6€€”rāUĒ9©żo‚’6€|€”rāUĒ9©żo‚’’’70, 71NMI Mask (bit 7), 146818 Compatible Real Time Clock82344¼1¬ˆ8Š‹#ę€bŁ×‡<€€”rāUĒ9©żo€‚’6€€”rāUĒ9©żo‚’6€L€”rāUĒ9©żo‚’’’78, 79, 7AAuxiliary Control PortsRegisters°%|‰čŠ‹#ę€JŁ×‡<€€”rāUĒ9©żo€‚’6€€”rāUĒ9©żo‚’6€<€”rāUĒ9©żo‚’’’080-08FDMA Page registers82344Ø8Š‹‹#ę€:Ł×‡<€€”rāUĒ9©żo€‚’6€ €”rāUĒ9©żo‚’6€,€”rāUĒ9©żo‚’’’092Control Port A82343“)čŠDŒ‹#ę€RŁ×‡<€€”rāUĒ9©żo€‚’6€€”rāUĒ9©żo‚’6€D€”rāUĒ9©żo‚’’’0A0-0BFInterrupt Controller-282344¹.‹żŒ‹#ę€\Ł×‡<€€”rāUĒ9©żo€‚’6€€”rāUĒ9©żo‚’6€N€”rāUĒ9©żo‚’’’0C0-0DEDMA Controller-2, Even Only82344Ź?DŒĒ‹#ę€~Ł×‡<€€”rāUĒ9©żo€‚’6€€”rāUĒ9©żo‚’6€p€”rāUĒ9©żo‚’’’0E0-0EFEMS, Configuration and CPU Control Registers82343¹.żŒ€Ž‹#ę€\Ł×‡<€€”rāUĒ9©żo€‚’6€ €”rāUĒ9©żo‚’6€F€”rāUĒ9©żo‚’’’0F0Clear Math CoProcessor BusyRegisters“)Ē4‹#ę€RŁ×‡<€€”rāUĒ9©żo€‚’6€ €”rāUĒ9©żo‚’6€<€”rāUĒ9©żo‚’’’0F1Reset Math CoProcessorRegistersŗ/€Ž Ą‹#ę€^Ł×‡<€€”rāUĒ9©żo€‚’6€€”rāUĒ9©żo‚’6€P€”rāUĒ9©żo‚’’’0F4, 0F5CPU Speed Control Registers823434 Ą/ƒ¹.4ÅĄ‹#ę€\Ł×‡<€€”rāUĒ9©żo€‚’6€*€”rāUĒ9©żo‚’6€N€”rāUĒ9©żo‚’’’0F8, 0FA, 0FC, 0FEMath CoProcessor387SX¶+ Ą{Į‹#ę€VŁ×‡<€€”rāUĒ9©żo€‚’6€€”rāUĒ9©żo‚’6€H€”rāUĒ9©żo‚’’’0F9, 0FBConfiguration Registers82343®#ÅĄ)Ā‹#ę€FŁ×‡<€€”rāUĒ9©żo€‚’6€ €”rāUĒ9©żo‚’6€4€”rāUĒ9©żo‚’’’102Setup Video EnableWD90C11½2{ĮęĀ‹#ę€dŁ×‡<€€”rāUĒ9©żo€‚’6€€”rāUĒ9©żo‚’6€N€”rāUĒ9©żo‚’’’1F0-1F8Fixed Disk Drive ControllerRegisters®#)Ā”Ć‹#ę€FŁ×‡<€€”rāUĒ9©żo€‚’6€€”rāUĒ9©żo‚’6€2€”rāUĒ9©żo‚’’’2F8-2FFSerial Port-2WD16C552°%ęĀDÄ‹#ę€JŁ×‡<€€”rāUĒ9©żo€‚’6€€”rāUĒ9©żo‚’6€6€”rāUĒ9©żo‚’’’378-37FParallel Port-1WD16C552Æ$”ĆóÄ‹#ę€HŁ×‡<€€”rāUĒ9©żo€‚’6€€”rāUĒ9©żo‚’6€6€”rāUĒ9©żo‚’’’3B0-3DFVideo RegistersWD90C11ŗ/DÄ­Å‹#ę€^Ł×‡<€€”rāUĒ9©żo€‚’6€€”rāUĒ9©żo‚’6€P€”rāUĒ9©żo‚’’’3F0-3F7Floppy Disk Drive Controller82077®#óÄ[Ę‹#ę€FŁ×‡<€€”rāUĒ9©żo€‚’6€€”rāUĒ9©żo‚’6€2€”rāUĒ9©żo‚’’’3F8-3FFSerial Port-1WD16C552« ­ÅĒ‹#ę€@Ł×‡<€€”rāUĒ9©żo€‚’6€€”rāUĒ9©żo‚’6€2€”rāUĒ9©żo‚’’’487-48FDMA Registers82344Ć8[ĘÉĒ‹#ę€pŁ×‡<€€”rāUĒ9©żo€‚’6€2€”rāUĒ9©żo‚’6€^€”rāUĒ9©żo‚’’’46E8, 56E8, 66E8, 76E8Video Setup RegisterWD90C117ĒČ5 :€€”rāUĒ9©żo€’T#ÉĒTČ1ß6 T%’’’’TČ1ŽSystem I/O Control Port Definitions«oČ’Č< H€Ž€”rāUĒ9©żo€€‚‚‚‚’Auxiliary I/O Control PortsThe following tables and text define the 300SX20 Auxiliary I/O Control ports.ė0Tȟɻ#F`af Ÿ „ €€’<€€”rāUĒ9©żo€‚’6€(€”rāUĒ9©żo‚’6€2€”rāUĒ9©żo‚’6€L€”rāUĒ9©żo‚’’’I/O PORT AddressBITSIGNAL NAMEFUNCTIONÖ'’ČĄŹÆ#.Naf Ÿ „ <€€”rāUĒ9©żo€‚’6€ €”rāUĒ9©żo‚’6€€”rāUĒ9©żo‚’6€&€”rāUĒ9©żo‚’’’78H7SPKRENA*Enable the Speakerę7źÉ¦ĖÆ#.naf Ÿ „ <€€”rāUĒ9©żo€‚’6€€”rāUĒ9©żo‚’6€ €”rāUĒ9©żo‚’6€€”rāUĒ9©żo‚’’’6C0VIDEO0 -> Video BIOS appears at E0000 onlyŪ,ĄŹĢÆ#.Xaf Ÿ „ <€€”rāUĒ9©żo€‚’6€€”rāUĒ9©żo‚’6€ €”rāUĒ9©żo‚’6€€”rāUĒ9©żo‚’’’1 -> Video BIOS at E0000 and C0000Ū,¦Ė\ĶÆ#.Xaf Ÿ „ <€€”rāUĒ9©żo€‚’6€€”rāUĒ9©żo‚’6€ €”rāUĒ9©żo‚’6€ €”rāUĒ9©żo‚’’’5FLPYENA*Enable the On-board floppyÜ-Ģ8ĪÆ#.Zaf Ÿ „ <€€”rāUĒ9©żo€‚’6€€”rāUĒ9©żo‚’6€ €”rāUĒ9©żo‚’6€€”rāUĒ9©żo‚’’’4HDENA*Enable the On-board hard diskį2\ĶĻÆ#.daf Ÿ „ <€€”rāUĒ9©żo€‚’6€€”rāUĒ9©żo‚’6€ €”rāUĒ9©żo‚’6€€”rāUĒ9©żo‚’’’VIDEN*Enable On-board video (*READ ONLY*)Ü-8Ī Æ#.Zaf Ÿ „ <€€”rāUĒ9©żo€‚’6€€”rāUĒ9©żo‚’6€ €”rāUĒ9©żo‚’6€€”rāUĒ9©żo‚’’’2COLOR*0 -> Color monitor installedĻ ČŚ+ĻęÆ#.Vaf Ÿ „ <€€”rāUĒ9©żo€‚’6€€”rāUĒ9©żo‚’6€ €”rāUĒ9©żo‚’6€€”rāUĒ9©żo‚’’’1 -> Monochrome monitor installedÓ$ ¹Æ#.Haf Ÿ „ <€€”rāUĒ9©żo€‚’6€€”rāUĒ9©żo‚’6€ €”rāUĒ9©żo‚’6€ €”rāUĒ9©żo‚’’’1RESERVEDShould be set low.Ó$ęŒÆ#.Haf Ÿ „ <€€”rāUĒ9©żo€‚’6€€”rāUĒ9©żo‚’6€ €”rāUĒ9©żo‚’6€ €”rāUĒ9©żo‚’’’0RESERVEDShould be set low.Ō%¹`Æ#.Jaf Ÿ „ <€€”rāUĒ9©żo€‚’6€ €”rāUĒ9©żo‚’6€€”rāUĒ9©żo‚’6€ €”rāUĒ9©żo‚’’’79H7FLUSH0 -> Cache enabledŽ/Œ>Æ#.^af Ÿ „ <€€”rāUĒ9©żo€‚’6€€”rāUĒ9©żo‚’6€ €”rāUĒ9©żo‚’6€€”rāUĒ9©żo‚’’’1 -> Cache disabled, all tags flushedŻ.`Æ#.\af Ÿ „ <€€”rāUĒ9©żo€‚’6€€”rāUĒ9©żo‚’6€ €”rāUĒ9©żo‚’6€€”rāUĒ9©żo‚’’’6PAROFFHDisable high byte parity DRAMÜ->÷Æ#.Zaf Ÿ „ <€€”rāUĒ9©żo€‚’6€€”rāUĒ9©żo‚’6€ €”rāUĒ9©żo‚’6€€”rāUĒ9©żo‚’’’5PAROFFLDisable low byte parity DRAMÕ&ĢÆ#.Laf Ÿ „ <€€”rāUĒ9©żo€‚’6€€”rāUĒ9©żo‚’6€€”rāUĒ9©żo‚’6€$€”rāUĒ9©żo‚’’’4,3RESERVEDShould be set low.9‰÷°#.af Ÿ „ <€€”rāUĒ9©żo€‚’6€€”rāUĒ9©żo‚’6€€”rāUĒ9©żo‚’6€,€”rāUĒ9©żo‚’’’2-0NCA_BIT(2:0)The Non-Cached Address control bits define what address space will be cached. See table below for list of optionsą1ĢåÆ#.baf Ÿ „ <€€”rāUĒ9©żo€‚’6€ €”rāUĒ9©żo‚’6€€”rāUĒ9©żo‚’6€.€”rāUĒ9©żo‚’’’7AH7-5COM(3-1)ENSerial port control bits½¢ Æ#.af Ÿ „ <€€”rāUĒ9©żo€‚’6€€”rāUĒ9©żo‚’6€ €”rāUĒ9©żo‚’6€€”rāUĒ9©żo‚’’’7 6 5Õ&åw Æ#.Laf Ÿ „ <€€”rāUĒ9©żo€‚’6€€”rāUĒ9©żo‚’6€ €”rāUĒ9©żo‚’6€€”rāUĒ9©żo‚’’’0 0 0 -> Both ports disabledŁ*¢ P Æ#.Taf Ÿ „ <€€”rāUĒ9©żo€‚’6€€”rāUĒ9©żo‚’6€ €”rāUĒ9©żo‚’6€€”rāUĒ9©żo‚’’’0 0 1 -> Port 1 COM1, Port 2 offŁ*w ) Æ#.Taf Ÿ „ <€€”rāUĒ9©żo€‚’6€€”rāUĒ9©żo‚’6€ €”rāUĒ9©żo‚’6€€”rāUĒ9©żo‚’’’0 1 0 -> Port 1 off, Port 2 COM2Ś+P  Æ#.Vaf Ÿ „ <€€”rāUĒ9©żo€‚’6€€”rāUĒ9©żo‚’6€ €”rāUĒ9©żo‚’6€€”rāUĒ9©żo‚’’’0 1 1 -> Port 1 COM1, Port 2 COM2Ź) Ķ Æ#.6af Ÿ „ <€€”rāUĒ9©żo€‚’6€€”rāUĒ9©żo‚’6€ €”rāUĒ9©żo‚’6€€”rāUĒ9©żo‚’’’1 X X -> RESERVEDį2 ®Æ#.daf Ÿ „ <€€”rāUĒ9©żo€‚’6€€”rāUĒ9©żo‚’6€ €”rāUĒ9©żo‚’6€€”rāUĒ9©żo‚’’’4FEATENEnable the Video feature connectorć4Ķ ‘Æ#.haf Ÿ „ <€€”rāUĒ9©żo€‚’6€€”rāUĒ9©żo‚’6€ €”rāUĒ9©żo‚’6€ €”rāUĒ9©żo‚’’’MSEINTEN*Enable the Mouse interrupt (IRQ12)į2®~@Æ#.daf Ÿ „ <€€”rāUĒ9©żo€‚’6€€”rāUĒ9©żo‚’‘~@Č6€€”rāUĒ9©żo‚’6€,€”rāUĒ9©żo‚’’’2,1LPT2, LPT1ENParallel port control bits» ‘9AÆ#.af Ÿ „ <€€”rāUĒ9©żo€‚’6€€”rāUĒ9©żo‚’6€ €”rāUĒ9©żo‚’6€€”rāUĒ9©żo‚’’’2 1Ö'~@BÆ#.Naf Ÿ „ <€€”rāUĒ9©żo€‚’6€€”rāUĒ9©żo‚’6€ €”rāUĒ9©żo‚’6€€”rāUĒ9©żo‚’’’0 0 -> Parallel port disabledĻ 9AŽBÆ#.@af Ÿ „ <€€”rāUĒ9©żo€‚’6€€”rāUĒ9©żo‚’6€ €”rāUĒ9©żo‚’6€€”rāUĒ9©żo‚’’’0 1 -> Enabled as LPT1Ļ B­CÆ#.@af Ÿ „ <€€”rāUĒ9©żo€‚’6€€”rāUĒ9©żo‚’6€ €”rāUĒ9©żo‚’6€€”rāUĒ9©żo‚’’’1 0 -> Enabled as LPT2ČŽBuDÆ#.2af Ÿ „ <€€”rāUĒ9©żo€‚’6€€”rāUĒ9©żo‚’6€ €”rāUĒ9©żo‚’6€€”rāUĒ9©żo‚’’’1 1 -> RESERVEDę7­C[EÆ#.naf Ÿ „ <€€”rāUĒ9©żo€‚’6€€”rāUĒ9©żo‚’6€ €”rāUĒ9©żo‚’6€€”rāUĒ9©żo‚’’’0LPTOE*Enable the bi-directional parallel portI uD¤E= J€€”rāUĒ9©żo€‚€ €‚’Notes:•Z[E9I; D€µ€P¶L”lāUĒ9©żo€‚‚‚’1) All reserved bits should be set to zero.2) An asterisk following a signal name indicates that the function is true when the signal is driven to low.3) The cache is controlled through Port 79. Bit 7 (FLUSH) can be used to disable the cache and flush all cache tags. Also, the cache can be disabled with Port 79 bits 2-0, the Non-Cacheable Address Control Bits (NCA_BIT(2:0)). The FLUSH bit applies to all memory addresses, while NCA_BIT(2:0) can be used to control cacheability over selected address ranges. The table below defines the eight options available. Note that NCA_BIT(2:0) should not be changed unless the FLUSH bit is set. Failure to follow this procedure could result in system hangs. Always set the FLUSH bit active before change NCA_BIT(2:0). After NCA_BIT(2:0) are updated, then return FLUSH to 0 to resume normal cache operation.›c¤EŌI8 @€Ę€P¶L”lāUĒ9©żo€‚’4) Standard AT I/O ports A & B and the standard PS/2 port at I/O address 92H are also supported.ėŖ9IæJA P€U€”rāUĒ9©żo€‚€€‚‚‚‚’Non-Cacheable Address Table:This tables defines how the NCA_BIT(2:0) bits are used to determine which address ranges are to be cached and which are not cachable.ėSŌIŖK˜#¦ Ŗ » €€’<€€”rāUĒ9©żo€‚’6€0€”rāUĒ9©żo‚’8€V€”rāUĒ9©żo‚‚’’’MEMORY ADDRESS RANGESTANDARD FUNCTIONCACHED (Y/N)Hex Value of NCA_BIT(2:0)“-æJ^M‡#Ž‚Z  Ŗ . . - . . - . . <€€”rāUĒ9©żo€‚’6€€”rāUĒ9©żo‚’6€ €”rāUĒ9©żo‚’6€€”rāUĒ9©żo‚’6€€”rāUĒ9©żo‚’6€(€”rāUĒ9©żo‚’6€2€”rāUĒ9©żo‚’6€<€”rāUĒ9©żo‚’6€F€”rāUĒ9©żo‚’ 6€P€”rāUĒ9©żo‚’’’ 0 1 2 3 4 5 6 7 ¾7ŖKO‡#Ž‚n  Ŗ . . - . . - . . <€€”rāUĒ9©żo€‚’6€&€”rāUĒ9©żo‚’6€>€”rāUĒ9©żo‚’6€D€”rāUĒ9©żo‚’6€J€”rāUĒ9©żo‚’6€P€”rāUĒ9©żo‚’6€V€”rāUĒ9©żo‚’6€\€”rāUĒ9©żo‚’6€b€”rāUĒ9©żo‚’ 6€h€”rāUĒ9©żo‚’’’000000 -> 07FFFF0K -> 512KNYYYYYYYĄ9^M耇#Ž‚r  Ŗ . . - . . - . . <€€”rāUĒ9©żo€‚’6€&€”rāUĒ9©żo‚’6€B€”rāUĒ9©żo‚’6€H€”rāUĒ9©żo‚’6€N€”rāUĒ9©żo‚Oč€Č’6€T€”rāUĒ9©żo‚’6€Z€”rāUĒ9©żo‚’6€`€”rāUĒ9©żo‚’6€f€”rāUĒ9©żo‚’ 6€l€”rāUĒ9©żo‚’’’080000 -> 09FFFF512K -> 640KNNNNYYYYĄ9O؂‡#Ž‚r  Ŗ . . - . . - . . <€€”rāUĒ9©żo€‚’6€&€”rāUĒ9©żo‚’6€B€”rāUĒ9©żo‚’6€H€”rāUĒ9©żo‚’6€N€”rāUĒ9©żo‚’6€T€”rāUĒ9©żo‚’6€Z€”rāUĒ9©żo‚’6€`€”rāUĒ9©żo‚’6€f€”rāUĒ9©żo‚’ 6€l€”rāUĒ9©żo‚’’’0A0000 -> 0BFFFFVideo MemoryNNNNNNNNæ8č€g„‡#Ž‚p  Ŗ . . - . . - . . <€€”rāUĒ9©żo€‚’6€&€”rāUĒ9©żo‚’6€@€”rāUĒ9©żo‚’6€F€”rāUĒ9©żo‚’6€L€”rāUĒ9©żo‚’6€R€”rāUĒ9©żo‚’6€X€”rāUĒ9©żo‚’6€^€”rāUĒ9©żo‚’6€d€”rāUĒ9©żo‚’ 6€j€”rāUĒ9©żo‚’’’0C0000 -> 0C7FFFVideo BIOS1NNYYNNYYĀ;؂)†‡#Ž‚v  Ŗ . . - . . - . . <€€”rāUĒ9©żo€‚’6€&€”rāUĒ9©żo‚’6€F€”rāUĒ9©żo‚’6€L€”rāUĒ9©żo‚’6€R€”rāUĒ9©żo‚’6€X€”rāUĒ9©żo‚’6€^€”rāUĒ9©żo‚’6€d€”rāUĒ9©żo‚’6€j€”rāUĒ9©żo‚’ 6€p€”rāUĒ9©żo‚’’’0C8000 -> 0DFFFFOff-board BIOSNNNNNNNNæ8g„臇#Ž‚p  Ŗ . . - . . - . . <€€”rāUĒ9©żo€‚’6€&€”rāUĒ9©żo‚’6€@€”rāUĒ9©żo‚’6€F€”rāUĒ9©żo‚’6€L€”rāUĒ9©żo‚’6€R€”rāUĒ9©żo‚’6€X€”rāUĒ9©żo‚’6€^€”rāUĒ9©żo‚’6€d€”rāUĒ9©żo‚’ 6€j€”rāUĒ9©żo‚’’’0E0000 -> 0E7FFFVideo BIOS2NNYYNNYYæ8)†§‰‡#Ž‚p  Ŗ . . - . . - . . <€€”rāUĒ9©żo€‚’6€&€”rāUĒ9©żo‚’6€@€”rāUĒ9©żo‚’6€F€”rāUĒ9©żo‚’6€L€”rāUĒ9©żo‚’6€R€”rāUĒ9©żo‚’6€X€”rāUĒ9©żo‚’6€^€”rāUĒ9©żo‚’6€d€”rāUĒ9©żo‚’ 6€j€”rāUĒ9©żo‚’’’0E8000 -> 0FFFFFSystem BIOSNNYNYNYNĆ<č‡j‹‡#Ž‚x  Ŗ . . - . . - . . <€€”rāUĒ9©żo€‚’6€&€”rāUĒ9©żo‚’6€H€”rāUĒ9©żo‚’6€N€”rāUĒ9©żo‚’6€T€”rāUĒ9©żo‚’6€Z€”rāUĒ9©żo‚’6€`€”rāUĒ9©żo‚’6€f€”rāUĒ9©żo‚’6€l€”rāUĒ9©żo‚’ 6€r€”rāUĒ9©żo‚’’’100000 -> FDFFFFExtended MemoryNYYYYYYYæ8§‰)‡#Ž‚p  Ŗ . . - . . - . . <€€”rāUĒ9©żo€‚’6€&€”rāUĒ9©żo‚’6€@€”rāUĒ9©żo‚’6€F€”rāUĒ9©żo‚’6€L€”rāUĒ9©żo‚’6€R€”rāUĒ9©żo‚’6€X€”rāUĒ9©żo‚’6€^€”rāUĒ9©żo‚’6€d€”rāUĒ9©żo‚’ 6€j€”rāUĒ9©żo‚’’’FE0000 -> FFFFFFSystem BIOSNNNNNNNNÄj‹1ŽD V€‰€”rāUĒ9©żo€‚€ €‚‚ƒ‚ƒ‚‚’Notes:1) C0-000 Video BIOS is cached if:the onboard video is disabled, OR ifthe onboard video AND C0-000 mapping are enabled.2) E0-000 Video BIOS is cached if onboard video is enabled.\+)Ž1ę&ʁ V&’’’’ŽÆDDefault Settings in System SETUP (CMOS RAM)µy1ŽB< H€ņ€”rāUĒ9©żo€€‚‚‚‚’Default BIOS SETUP SettingsWhen the clear CMOS jumper is used, the following settings are loaded into CMOS memory:Ę/ŽĄ—#ž€^f“ Š €€’<€€”rāUĒ9©żo€‚’6€(€”rāUĒ9©żo‚’6€J€”rāUĒ9©żo‚’’’BIOS SETUP FieldDefault SettingCoBĄ1Žmments–BŖĄŽ#ģ€f“ Š <€€”rāUĒ9©żo€‚’<€€”rāUĒ9©żo€‚’6€ €”rāUĒ9©żo‚’’’„ĄOĮŽ#ģ€.f“ Š <€€”rāUĒ9©żo€‚’<€$€”rāUĒ9©żo€‚’6€*€”rāUĒ9©żo‚’’’Page 1 SettingsŅGŖĄ!Ā‹#ꀎf“ Š <€€”rāUĒ9©żo€‚’6€€”rāUĒ9©żo‚’6€6€”rāUĒ9©żo‚’’’Diskette A3.5", 1.44MBStandard floppy drive in 2F configuration.©OĮŹĀ‹#ę€<f“ Š <€€”rāUĒ9©żo€‚’6€€”rāUĒ9©żo‚’6€8€”rāUĒ9©żo‚’’’Diskette BNot InstalledĄ5!ĀŠĆ‹#ę€jf“ Š <€€”rāUĒ9©żo€‚’6€€”rāUĒ9©żo‚’6€:€”rāUĒ9©żo‚’’’Hard Disk 1Not InstalledType 33=40Meg Quantum.Ą5ŹĀJÄ‹#ę€jf“ Š <€€”rāUĒ9©żo€‚’6€€”rāUĒ9©żo‚’6€:€”rāUĒ9©żo‚’’’Hard Disk 2Not InstalledType 34=80Meg Quantum.ÜQŠĆ&Å‹#ę€¢f“ Š <€€”rāUĒ9©żo€‚’6€€”rāUĒ9©żo‚’6€(€”rāUĒ9©żo‚’’’Base Memory640KIf installed memory = 512K, this will automatically change.Ä9JÄźÅ‹#ę€rf“ Š <€€”rāUĒ9©żo€‚’6€$€”rāUĒ9©żo‚’6€.€”rāUĒ9©żo‚’’’Extended MemoryN/AMemory Size checked on power-up. &ÅŠĘ‹#ę€*f“ Š <€€”rāUĒ9©żo€‚’6€€”rāUĒ9©żo‚’6€&€”rāUĒ9©żo‚’’’DisplayVGA/EGAäYźÅnĒ‹#ę€²f“ Š <€€”rāUĒ9©żo€‚’6€€”rāUĒ9©żo‚’6€4€”rāUĒ9©żo‚’’’KeyboardNot InstalledThis only prevents an error message, keyboard still operates.Å:ŠĘ3Č‹#ę€tf“ Š <€€”rāUĒ9©żo€‚’6€€”rāUĒ9©żo‚’6€$€”rāUĒ9©żo‚’’’CPU SpeedFastNormal 8Mhz ISA Bus Operation (Turbo).§nĒŚČ‹#ę€8f“ Š <€€”rāUĒ9©żo€‚’6€*€”rāUĒ9©żo‚’6€4€”rāUĒ9©żo‚’’’Numlock on at BootYes–3ČpÉŽ#ģ€f“ Š <€€”rāUĒ9©żo€‚’<€€”rāUĒ9©żo€‚’6€ €”rāUĒ9©żo‚’’’„ŚČŹŽ#ģ€.f“ Š <€€”rāUĒ9©żo€‚’<€$€”rāUĒ9©żo€‚’6€*€”rāUĒ9©żo‚’’’Page 2 Settings£pÉøŹ‹#ę€0f“ Š <€€”rāUĒ9©żo€‚’6€€”rāUĒ9©żo‚’6€,€”rāUĒ9©żo‚’’’Enter SetupAlways ŹXĖ‹#ę€*f“ Š <€€”rāUĒ9©żo€‚’6€€”rāUĒ9©żo‚’6€&€”rāUĒ9©żo‚’’’SpeakerEnabledßTøŹ7Ģ‹#ę€Øf“ Š <€€”rāUĒ9©żo€‚’6€8€”rāUĒ9©żo‚’6€J€”rāUĒ9©żo‚’’’On-Board Video ControllerPrimarySecondary does not work, will be fixed later.ø-XĖļĢ‹#ę€Zf“ Š <€€”rāUĒ9©żo€‚’6€4€”rāUĒ9©żo‚’6€V€”rāUĒ9©żo‚’’’Monochrome Startup ModeAll Video Modes£7Ģ’Ķ‹#ę€0f“ Š <€€”rāUĒ9©żo€‚’6€€”rāUĒ9©żo‚’6€,€”rāUĒ9©żo‚’’’Monitor TypeOtherāWļĢtĪ‹#ꀮf“ Š <€€”rāUĒ9©żo€‚’6€ €”rāUĒ9©żo‚’6€4€”rāUĒ9©żo‚’’’Cache ControlDisabledSlows System Performance, should be changed after power-up.äY’ĶXĻ‹#ę€²f“ Š <€€”rāUĒ9©żo€‚’6€2€”rāUĒ9©żo‚’6€F€”rāUĒ9©żo‚’’’VESA Feature ConnectorDisabledEnable only if VESA VGA Pass thru Connector is used.Ź?tĪ.‹#ę€~f“ Š <€€”rāUĒ9©żo€‚’6€,€”rāUĒ9©żo‚’6€z€”rāUĒ9©żo‚’’’Onboard PeripheralsOnboardXĻ.1Ž floppy and fixed disk enabledįVXĻ‹#ꀬf“ Š <€€”rāUĒ9©żo€‚’6€€”rāUĒ9©żo‚’6€4€”rāUĒ9©żo‚’’’PasswordNot InstalledDepress + or - to enter, Jumper J25 must be set to "keep".–.„Ž#ģ€f“ Š <€€”rāUĒ9©żo€‚’<€€”rāUĒ9©żo€‚’6€ €”rāUĒ9©żo‚’’’„JŽ#ģ€.f“ Š <€€”rāUĒ9©żo€‚’<€$€”rāUĒ9©żo€‚’6€*€”rāUĒ9©żo‚’’’Page 3 SettingsÆ$„ł‹#ę€Hf“ Š <€€”rāUĒ9©żo€‚’6€2€”rāUĒ9©żo‚’6€D€”rāUĒ9©żo‚’’’Base Memory Above 512KEnabledŲMJŃ‹#ꀚf“ Š <€€”rāUĒ9©żo€‚’6€$€”rāUĒ9©żo‚’6€8€”rāUĒ9©żo‚’’’Mouse InterruptDisabledEnable if you intend to use a PS/2 Style Mouse.¹.łŠ‹#ę€\f“ Š <€€”rāUĒ9©żo€‚’6€ €”rāUĒ9©żo‚’6€4€”rāUĒ9©żo‚’’’Parallel PortStandardDisable if unused.ø-ŃB‹#ę€Zf“ Š <€€”rāUĒ9©żo€‚’6€ €”rāUĒ9©żo‚’6€2€”rāUĒ9©żo‚’’’Serial Port 1EnabledDisable if unused.·,Šł‹#ę€Xf“ Š <€€”rāUĒ9©żo€‚’6€€”rāUĒ9©żo‚’6€0€”rāUĒ9©żo‚’’’Serial Port2EnabledDisable if unused.„B Œ#ę€ f“ Š <€€”rāUĒ9©żo€‚’6€N€”rāUĒ9©żo‚’6€b€”rāUĒ9©żo‚’’’Console Redirection to Serial Port 1DisabledConsole Redirection requires a SCAN code terminal. ASCII terminals will not work.@“łIŒ#ę€if“ Š <€€”rāUĒ9©żo€‚’6€N€”rāUĒ9©żo‚’6€d€”rāUĒ9©żo‚’’’Console Redirection to Serial Port 29600 BAUDThis is enabled for users that wish to use console redirection. If you are not using console redirection disable this function.– ߎ#ģ€f“ Š <€€”rāUĒ9©żo€ ‚’<€€”rāUĒ9©żo€‚’6€ €”rāUĒ9©żo‚’’’„I„ Ž#ģ€.f“ Š <€€”rāUĒ9©żo€‚’<€$€”rāUĒ9©żo€‚’6€*€”rāUĒ9©żo‚’’’Page 4 Settingsóhßw ‹#ꀩf“ Š <€€”rāUĒ9©żo€‚’6€€”rāUĒ9©żo‚’6€0€”rāUĒ9©żo‚’’’Memory RollDisabledCan be enabled for 1&2 Meg configurations only and when shadowing is disabled.õj„ l ‹#ę€Ōf“ Š <€€”rāUĒ9©żo€‚’6€:€”rāUĒ9©żo‚’6€P€”rāUĒ9©żo‚’’’User Definable Drive Types48 and 49Types 2 & 3 are the other option (required for Novell/DesqView).Ź?w 6 ‹#ę€~f“ Š <€€”rāUĒ9©żo€‚’6€*€”rāUĒ9©żo‚’6€>€”rāUĒ9©żo‚’’’Shadow System BIOSDisabledEnable for better performance.ŃFl  ‹#ꀌf“ Š <€€”rāUĒ9©żo€‚’6€8€”rāUĒ9©żo‚’6€L€”rāUĒ9©żo‚’’’Shadow Onboard Video BIOSDisabledEnable for better performance.ė`6 ņ ‹#ꀡf“ Š <€€”rāUĒ9©żo€‚’6€:€”rāUĒ9©żo‚’6€N€”rāUĒ9©żo‚’’’Onboard Video BIOS MappingTo E0000Keep here unless Application requires mapping to C0000.ŃF Ć‹#ꀌf“ Š <€€”rāUĒ9©żo€‚’6€0€”rāUĒ9©żo‚’6€D€”rāUĒ9©żo‚’’’Shadow C0000 to C3FFFDisabledEnable only if Address Space used.ĻDņ ’‹#ꀈf“ Š <€€”rāUĒ9©żo€‚’6€0€”rāUĒ9©żo‚’6€D€”rāUĒ9©żo‚’’’Shadow C4000 to C7FFFDisabled "ĻDĆm@‹#ꀈf“ Š <€€”rāUĒ9©żo€‚’6€0€”rāUĒ9©żo‚’6€’m@1ŽD€”rāUĒ9©żo‚’’’Shadow C8000 to CBFFFDisabled "ĻD’€1€”rāUĒ9©żo€‚‚’During Intel's testing of the 300SX20 for EMI/RFI emissions it was found to be one of the best (least emissions) desktop platforms Intel has tested.D?MSN1£€„É)’’’’SN»‚Physical DimensionsRN„N: D€0€”rāUĒ9©żo€€‚‚’Physical DimensionsÅ.SNjO—#ž€\śż¤€€’<€€”rāUĒ9©żo€‚’6€*€”rāUĒ9©żo‚’6€L€”rāUĒ9©żo‚’’’System DimensionsUS MeasurementsMetric£„N€‹#ę€0śż¤<€€”rāUĒ9©żo€‚’6€€”rāUĒ9©żo‚’6€€”rāUĒ9©żo‚’’’Height6.jO€N2"15.75cm£jO¼€‹#ę€0śż¤<€€”rāUĒ9©żo€‚’6€€”rāUĒ9©żo‚’6€€”rāUĒ9©żo‚’’’Width14.0"35.56cm£€_‹#ę€0śż¤<€€”rāUĒ9©żo€‚’6€€”rāUĒ9©żo‚’6€€”rāUĒ9©żo‚’’’Depth15.7"40.87cmؼ€‚‹#ę€:śż¤<€€”rāUĒ9©żo€‚’6€€”rāUĒ9©żo‚’6€(€”rāUĒ9©żo‚’’’Weight27 pounds12.25kg“|_»‚8 @€ų€”rāUĒ9©żo€‚‚‚’The 300SX20 baseboard measures 12" (30.48cm) in-width and 10" (25.4cm) in-depth.The board weighs about 3.3 lbs (1.5kg).M‚ƒ1c G†€*’’’’ƒCĄEnvironmental Specifications[!»‚cƒ: D€B€”rāUĒ9©żo€€‚‚’Environmental SpecificationsĢ5ƒ/„—#ž€j¾†€€’<€€”rāUĒ9©żo€‚’6€6€”rāUĒ9©żo‚’6€L€”rāUĒ9©żo‚’’’Environmental ParameterConditionSpecificationcƒĢ„‹#ę€$¾†<€€”rāUĒ9©żo€‚’6€€”rāUĒ9©żo‚’6€ €”rāUĒ9©żo‚’’’Temperature­"/„y…‹#ę€D¾†<€€”rāUĒ9©żo€‚’6€€”rāUĒ9©żo‚’6€$€”rāUĒ9©żo‚’’’Non-Operating-40oC to +70oC©Ģ„"†‹#ę€<¾†<€€”rāUĒ9©żo€‚’6€€”rāUĒ9©żo‚’6€€”rāUĒ9©żo‚’’’Operating+10oC to +40oCšy…¼†‹#ę€¾†<€€”rāUĒ9©żo€‚’6€€”rāUĒ9©żo‚’6€€”rāUĒ9©żo‚’’’Humidity½2"†y‡‹#ę€d¾†<€€”rāUĒ9©żo€‚’6€€”rāUĒ9©żo‚’6€$€”rāUĒ9©żo‚’’’Non-Operating95% Relative Humidity at +55oCæ4¼†8ˆ‹#ę€h¾†<€€”rāUĒ9©żo€‚’6€€”rāUĒ9©żo‚’6€€”rāUĒ9©żo‚’’’Operating85% RH at +40oC, with drives < 26oCšy‡Ņˆ‹#ę€¾†<€€”rāUĒ9©żo€‚’6€€”rāUĒ9©żo‚’6€€”rāUĒ9©żo‚’’’Altitudeŗ/8ˆŒ‰‹#ę€^¾†<€€”rāUĒ9©żo€‚’6€€”rāUĒ9©żo‚’6€$€”rāUĒ9©żo‚’’’Non-Operating50,000 feet (15,240 meters)“)Ņˆ@Š‹#ę€R¾†<€€”rāUĒ9©żo€‚’6€€”rāUĒ9©żo‚’6€€”rāUĒ9©żo‚’’’Operating10,000 feet (3048 meters)• Œ‰Պ‹#ę€¾†<€€”rāUĒ9©żo€‚’6€ €”rāUĒ9©żo‚’6€€”rāUĒ9©żo‚’’’ESD„@Šz‹‹#ę€4¾†<€€”rāUĒ9©żo€‚’6€€”rāUĒ9©żo‚’6€€”rāUĒ9©żo‚’’’0Kv to 5KvNo Errors®#Պ(Œ‹#ę€F¾†<€€”rāUĒ9©żo€‚’6€€”rāUĒ9©żo‚’6€&€”rāUĒ9©żo‚’’’>5Kv to 12.5KvNo Hard ErrorsĘ;z‹īŒ‹#ę€v¾†<€€”rāUĒ9©żo€‚’6€€”rāUĒ9©żo‚’6€,€”rāUĒ9©żo‚’’’>12.5Kv to 25.0KvHard Errors, but no physical damage— (Œ…‹#ę€¾†<€€”rāUĒ9©żo€‚’6€€”rāUĒ9©żo‚’6€€”rāUĒ9©żo‚’’’Power½2īŒBŽ‹#ę€d¾†<€€”rāUĒ9©żo€‚’6€€”rāUĒ9©żo‚’6€N€”rāUĒ9©żo‚’’’10% Sag of nominal volts for 500msNo ErrorsÉ>… ‹#ę€|¾†<€€”rāUĒ9©żo€‚’6€€”rāUĒ9©żo‚’6€T€”rāUĒ9©żo‚’’’3.0Kv/200A Positive or negative SurgeNo Physical DamageÜQBŽ Ą‹#ę€¢¾†<€€”rāUĒ9©żo€‚’6€&€”rāUĒ9©żo‚’6€h€”rāUĒ9©żo‚’’’Acoustical Noise1 meter in front of exhaust fan45Dba (Was tested at 42Dba)  Ą»‚7 CĄ5 :€€”rāUĒ9©żo€’T# Ą—Ą1Lɦ+’’’’—ĄĀReliability and MTBF Specificationsų·CĄĀA P€o€”rāUĒ9©żo€‚€‚‚‚‚‚‚‚’Reliability and MTBF SpecificationsThe Baseboard is designed to have a calculated MTBF exceeding 40,000 hours.All components are on a single side to reduce damage during handling andsurfacemount technology was extensively used.Other features were included to increase system reliability including surge protection on the serial ports and using EPLD devices to reduce heat in comparison to older families of programmable devices.a0—ĄšĀ1p¦ †,’’’’šĀ’ČPBA Version 511893-002 Problem Descriptions MenuHƏĀ8Å™ _€”räUĒ9©żo€€€‚‚ćė¢€‰€‚ćŽķÄė€‰€‚ć1Ēk5€‰€‚ćŌ €‰€‚ćwz¹Č€‰€‚ćT`€‰€‚ć½-\€‰€‚’Problem Descriptions for PBA #511893-002:Fast A20 routine in System ROM may sometimes hang system.WD16C552 Serial Controller problems.First Choice fails when using serial ports.AT&T UNIX Version 3.2.2 fails on the Intel Model 300SX-20.User Definable Drive Types causes the system to hang.On-board Video Controller can not be set to Secondary.Setting SETUP to Default values clears Password.B§šĀzĒ› O€”räUĒ9©żoć`®„€‰€‚ćšß˜€‰€‚ćß8<€‰€‚ć‚ćJ€‰€‚ć%ģ‰”€‰€‚ćČÅ0Ž€‰€‚ćkŸ×'€‰€‚ćy~q€‰€‚’Memory Roll disables serial ports.Enter SETUP at Pre-boot Only SETUP option fails.Cursor and page keys may not respond in SETUP.Erroneous Warning Message during POST.Microsoft Word Version 5.5 and Logitech Mouse Compatibility.PCPaint V2.0 and Logitech Mouse Compatibility.Orchid Prodesigner video add-in card and a mouse fail.Wrong warning message displayed with DOS format command.…8Å’Čt ¶€#€”räUĒ9©żoć±R%»€‰€‚ćT,Ģ€‰€‚ć÷sN€‰€‚ćūm ÷€‰€‚ć@ĒB`€‰€‚’VGA Pass Though does not support Bi-direction Dot clock.VGA Pass Though connector pin 26 is not grounded.Deturbo mode runs a little fast.Printer Port Interrupt not disabled in polled mode.Key click can hardly be heard, even at the loudest setting.AzĒ@É1r¹­-’’’’@Éł Fast A20 ProblemÜ’ČZĢ> J€¹€”räUĒ9©żo€‚‚‚€‚‚’Fast A20 routine in System ROM may sometimes hang system.Problem Description:The routine may cause some operating systems (such as DOS 5.0) and memory managers to hang under certain conditions. This is most often seen after DOS 5.0 is initially installed and the user is prompted to re-boot the system. When the system re-boots it hangs. Intel and Phoenix isolated a problem with the A20 support code that was showing up with QMAPS, QEMM, DOS 5.0, and other software packages that would use the A20 handler to access high memory. The code that set and reset A20 was corrupting the DX register, while the calling code would expect DX to be preserved. The problem was fixed by saving and restoring DX around the A20 code.‚1@ÉÜĪQ p€c€”räUĒ9©żo€‚€‚€‚‚€‚€‚‚€‚€‚’Resolution:This is fixed in BIOS version 1.10 32.L0. Upgrade to BIOS V1.10 32.L0 or later.Applications Effected:Applications that try to manage memory above 1MB by using the fast A20 gate handler.Work-around:For DOS 5.0 there are several work around. Load DOS 5.0 from the installation disks. After DOS 5.0 is loaded the system will attempt to reboot. The system may hang at this time. If it does boot the system from a diskette (either DOS 4.01 or DOS 5.0 format) and then edit the config.sys file to include one of the following changes:Ł—ZĢµĻB R€/€”räUĒ9©żo€‚€€‚ƒ‚‚‚’1) This method doesn't use the Fast A20 handle and is the surest fix,but may slightly slow down system performance.DEVICE = c:\HIMEM.SYS /M:1;ÜĪ 6 <€ € ”räUĒ9©żo€‚’ORµĻ ’Čķ­µĻł @ N€[€”räUĒ9©żo€€‚ƒ‚‚‚‚‚’2) This method uses the Fast A20 handle,but configures it in such a way that the application may not fail.DEVICE = c:\HIMEM.SYSDEVICE = c:\EMM386.EXEDOS = HIGH,UMBT# M 14 †€.’’’’M ĻA WD16C552 Serial Controller Problems‡Dł Ō C T€‰€”räUĒ9©żo€‚€‚€‚€‚’WD16C552 Serial Controller Problems.Description of Problem:The WD16C552-JT Serial / Parallel Port Controller has two problems. One, when using the serial port FIFOs and one with losing interrupts. The user would normally see a problem when trying to use application software that communicates over the serial lines, such as Procomm Plus or Crosstalk. This problem is usually encountered during file transfer. With Crosstalk the error message "Protocol error 45-4 in Terminal Mode" may be displayed. With First Choice this failure was seen as an inability to dial out.ÉM å H ^€“€”räUĒ9©żo€‚€‚€‚‚€‚€‚’Resolution:The D-Step version of the WD16C552 component fixes both of these issues. The new component was incorporated into all systems with a ship date of October 24, 1991 or later. This was done via QAN# OR1732 and was ECO'ed into the product. Printed Board Assemble (PBA) versions 511893-004 or greater have the new stepping of the WD16C552. The new stepping devices can be identified by a letter "D" after the date code.Hardware Work-around:For users that need a alternate solution (other than upgrading the PBA) Intel has tested a dual channel serial port addin card that uses two 9-pin serial ports and has found that this board (A CIO703 Serial board manufactured by Diversified Technology out of Ridgeland, Mississippi 601-856-2888) operates correctly in the 300SX20 when the two on-board serial ports were disabled and found that it passed all of Intel's internal compatibility tests including those that failed because of the WD16C552 problems.å”Ō Ź Q p€)€”räUĒ9©żo€‚€€‚‚‚€€‚‚‚€‚€‚’FIFO Technical Problem Description: When the UART Transmit FIFO is loaded with one byte before polling for The THRE (Transmit Holding Register Empty) or before a THRE Interrupt, some transmit data is lost. Applications Effected:Crosstalk, Procomm, First Choice and OS/2 communication software packages are known to fail. In theory, any program that uses the Transmit FIFO may encounter a problem.Software Work-around for FIFO Problem:TEMT (Transmitter Empty, both the transmit holding register and transmit shift register Empty) can be polled for, instead of THRE. For the polled or interrupt driven case, if more than one byte is loaded into the FIFO for each THRE or interrupt, no problems occur. A work-around if interrupts are enabled and only one byte is written to the FIFO is to poll for TEMT in the interrupt routine. These work-around have been verified by Western Digital Corporation.T å  H ^€€”räUĒ9©żo€‚€‚€‚‚€‚€‚’WD16C552 Lost Interrupt Technical Problem Description:Interrupts can be identified by reading either the Line Status Register (LSR) or the Interrupt Identification Register (IIR). If identification is done by reading the IIR, loss of a THRE interrupt in the IIR can occur while a Receiver Buffer Register Full (RBRF) interrupt is being generated at the same time that the THRE interrupt in the IIR is being read.Applications effected:At this time no applications have been found to fail because of this problem.„fŹ ĻA ? L€Ķ€”räUĒ9©żo€‚€‚€‚’Software Work-around for lost Interrupt Problem:This anomaly can be avoided by reading the Line Status Register (LSR) instead of the IIR to identify all interrupts. The next revision of this component will resolve this issue by implementing a logic change to modify the behavior of the interrupt pin. By specification the THRE interrupt can be cleared by reading the IIR or by writing into the Transmitter Holdin ĻA ł g Register (THR). Currently, if the interrupt is cleared by reading the IIR, another THRE interrupt will not be generated until a character is loaded into the THR and transmitted. The next version will be modified to allow the THRE interrupt status to be updated by re-enabling the interrupts (writing to the IIR). Therefor, if the THRE interrupt has been cleared by reading the IIR, re-enabling the interrupts will regenerate the THRE interrupt.S" "B 1C­_‚/’’’’"B E First Choice Compatibility Problem#ŅĻA ED Q p€„€”räUĒ9©żo€‚€‚€‚€‚‚€‚€‚‚€‚’First Choice fails when using serial ports.Problem Description:When First Choice communications software is used, with an external modem, it will not work correctly unless it is connected to serial port 2 (Com2) and serial port 1 (Com1) has been disabled via the BIOS Setup program. This is a problem with BIOS version 1.10 31.L0.Resolution:BIOS version 1.10 32.L0 resolves this problem. Upgrade to BIOS V1.10 32.L0 or later.Applications effected:Ķ"B E @ N€€”räUĒ9©żo€‚‚€‚€‚’First Choice communications software.Work-around:Connect the external modem to serial port 2 (Com2) and disable serial port 1 (Com1)._.ED qE 1b€Ī†0’’’’qE tJ AT&T UNIX V3.2 Release 2 Compatibility Problem—KE H L f€—€”räUĒ9©żo€‚€‚€‚€‚‚€‚€‚’AT&T UNIX Version 3.2.2 fails on the Intel Model 300SX-20.Problem Description:Because of an incompatibility between the WD90C11 register set and the video drivers used in the 3.2.2 version of AT&T's UNIX this Operating System can not be used with the on-board video controller. The problem is seen as video distortion caused by incorrect vertical or horizontal sync signals. This occurs after the "Booting UNIX ..." message appears.Resolution:This issue is resolved by upgrading to AT&T UNIX System V Version 4. AT&T's System V version 4 UNIX does not have this problem.l$qE tJ H ^€I€”räUĒ9©żo€‚€‚€‚‚€‚€‚’Applications Effected:AT&T UNIX V3.2.2 and any applications requiring this version of the UNIX operating system. Third party operating systems that are direct derivatives of this version of the UNIX OS may fail as well. SCO UNIX and Interactive UNIX are not effected by this problem.Work-around:If a Sony VGA Character terminal is used the video appears correct. Also, AT&T has corrected this problem in the video drivers used in UNIX V4.0 and greater. We recommend using either any version of SCO UNIX or AT&T UNIX V4.0 or greater.j9H ŽJ 1›_‚k‰1’’’’ŽJ N User Definable Drive Type Usage may cause system to hang.ĘtJ łL U x€€”räUĒ9©żo€€‚€‚‚€‚‚€‚€‚‚€‚€‚’User Definable Drive Types Causes the System to Hang.Problem Description:There is a BIOS problem that will cause the system to hang, beep and then clear CMOS on the next re-boot if user drive types 2 and 3 are selected and the user types CNTRLALTDEL.Resolution:This is fixed in BIOS version 1.10 32.L0. Upgrade to BIOS V1.10 32.L0 or later.Applications Effected:Applications that only allow drive types 1 to 47, such as Novel Netware.׎J N ? L€Æ€”räUĒ9©żo€‚€‚€‚’Work-around:Try using drive types 48 and 49. If you must use drive types 2 and 3 then be sure to note your SETUP options so they can be reset to the appropriate settings afterward a CNTRL-ALT-DEL is entered.rAłL N 1„Ī†Ł2’’’’N … Can Not Set On-Board Video Controller set to Secondary -- PBA-002`N ķ C T€;€”räUĒ9©żo€‚€‚€‚€‚’On-board Video Controller can not be set to Secondary.Problem Description:When the on-board video is set to secondary the boot messages still appear on the on-board video interface and do not get redirected to the monochrome display. There is an option on page 2 of the BIOS SETUP screens and it is intended N ķ N to be used to set the on-board video controller to secondary in the case were a user wishes to boot from an add-in monochrome video card instead of from the on-board VGA interface. What this means is that the POST, BIOS and OS boot messages will appear on the monochrome display and not on the VGA display while the system is booting. This is sometimes used in CAD applications were the console is used as a text only display and the graphics are displayed on the VGA monitor.*ŁN … Q p€³€”räUĒ9©żo€‚€‚€‚‚€‚€‚‚€‚€‚’Resolution:This is a system BIOS problem which may never be corrected and may be removed from the SETUP screen in future releases of the BIOS. This is not fixed in BIOS version 1.10 32.L0. BIOS V1.10 33.L0 removes this option from the SETUP screen.Applications Effected:Applications that boot from an add-in monochrome display in a dual display application.Work-around:For DOS based applications the DOS command "mode mono" can be included in the system's autoexec.bat file. This will switch the active display to the monochrome adapter card prior to the application software being invoked. A similar solution can be used for other operating systems that provide a means for switching the active display.`/ķ w… 1{k‰œ3’’’’w… ’‡ Setting SETUP to default values clears PasswordĆ… ’‡ X ~€‡€”räUĒ9©żo€‚‚‚€‚‚€‚€‚‚€‚€‚‚€‚€‚’Setting SETUP to default values clears Password.Problem Description:When the CMOS values are set to default values it clears the power-up password. This allows anyone to clear the password by rebooting a system and entering the BIOS Setup utility and using the ESC-F5 sequence to set defaults.Resolution:This is fixed in BIOS version 1.10 32.L0. Upgrade to BIOS V1.10 32.L0 or later.Applications Effected:None.Work-around:None._.w… ń‡ 1CŁõ4’’’’ń‡ Պ Memory Roll Disables Serial Ports -- PBA -002.Į’‡ Š T v€ƒ€”räUĒ9©żo€‚‚‚€‚‚€‚€‚‚€‚€‚‚€‚’Memory Roll Disables Serial Ports.Problem Description:If a user sets either of the serial ports to enabled on page 3 of the SETUP screens and then subsequently enables memory roll on page 4 of the SETUP screens, the serial ports will automatically be set to disabled. This is not supposed to happen.Resolution:This is not fixed in BIOS version 1.10 32.L0, but is fixed in BIOS V1.10 33.L0.Applications Effected:None.Work-around:Ļ˜ń‡ Պ 7 <€1€”räUĒ9©żo€‚’Enable Memory Roll first, then set the serial ports to enable after memory roll has already been set. This way the serial lines will remain enabled.V%Š +‹ 1œ, 5’’’’+‹ šŽ Enter SETUP at Pre-Boot Only Problem.ÜՊ D = H€¹€”räUĒ9©żo€‚‚‚€‚’Enter SETUP at Pre-boot Only SETUP option fails.Problem Description:The BIOS SETUP program option to inhibit CNTRL-ALT-INS from invoking the BIOS SETUP program except at pre-boot does not work. It is always possible to invoke the SETUP program even when the user selects pre-boot only. This will cause a problem (system may hang) if a memory manager is being used which does not exclude the address space used by the BIOS SETUP program and the CNTRLALTINS is invoked.¬[+‹ šŽ Q p€·€”räUĒ9©żo€‚€‚€‚‚€‚€‚‚€‚€‚’Resolution:This is fixed in BIOS version 1.10 32.L0. Upgrade to BIOS V1.10 32.L0 or later.Applications Effected:Any memory management program that uses the address space between E800 and EFFF, inclusively.Work-around:Use the appropriate exclude statement when invoking a memory manager so the addresses E800 to EFFF are excluded.\+D L 1rõµ6’’’’L ąĆ Cursor and page keys don't respond problem.‚EšŽ ŚĮ = H€‹€”räUĒ9©żo€‚‚‚€‚’Cursor and page keys may not respond in Setup.Problem Description:Once the user has entered into the BIOS Setup prL ŚĮ šŽ ogram using the CNTRL-ALT-INS key sequence neither the cursor nor the page up/down keys have any effect. This prevents the user from modifying the values in the setup screens. This problem is very difficult to duplicate and is likely never to be seen by an external user. Intel has not been able to duplicate this problem with BIOS version 1.10 32.L0 and it is assumed that the problem has been resolved by some of the changes made in the Phoenix BIOS code.µL ąĆ Q p€k€”räUĒ9©żo€‚€‚€‚‚€‚€‚‚€‚€‚’Resolution:Upgrade to BIOS V1.10 32.L0 or later.Applications Effected:None:Work-around:Once the BIOS setup screen has been displayed, press then release the CNTRL key that was used to enter the setup program. If that fails to free up the cursor and page keys try pressing and then releasing the ALT key used to enter the setup program. If neither of those work, typing CNTRL-ALT-INS a second time will fix the problem._.ŚĮ ?Ä 1Ņ, šˆ7’’’’?Ä ²Ė Erroneous Warning Message during POST Problem.ņµąĆ 1É = H€k €”räUĒ9©żo€‚‚‚€‚’Erroneous Warning Message during POST.Problem Description:After an unsuccessful boot attempt has been made the message "Default Configuration in use" may appear on the screen in the middle of the POST boot messages. This is reference to the 82340 chip set configuration registers. The warning message informs the user that the default values for the 82340 chip set configuration registers are being used. These values help ensure that the current boot will be successful. This message is separate from the "Invalid configuration information - Please run SETUP program" message that is display at the end of the POST cycle when the previous boot encountered a fatal system error. This second message is inreference to the values loaded into CMOS configuration RAM. The system will change the CMOS configuration to correspond to the default values when one of the POST tests causes a fatal error, at which time this second message will be displayed on the screen to inform the user that the default values are being, since these values may not reflect the users desired settings. The default values were selected to best allow the system to boot even when there was a hardware failure present.0?Ä ²Ė Q p€a€”räUĒ9©żo€‚€‚€‚‚€‚€‚€‚‚€‚’Resolution:This is resolved in BIOS version 1.10 32.L0. Upgrade to BIOS V1.10 32.L0 or later.Applications Effected:None.Work-around:After the system successfully boots (even if the Default Configuration in use message was displayed) re-boot the system. Since the previous boot was successful no error messages should be displayed. If this message does not go away after a successful boot (a successful boot is one that does not contain any errors) then a hardware problem may exist. Contact your local service provided for further testing.c21É Ģ 1Lµ8’’’’Ģ £ MS Word V5.5 / Logitech Mouse Compatibility Issue.g!²Ė |Ī F Z€C€”räUĒ9©żo€‚‚‚€‚‚€‚€‚’Microsoft Word Version 5.5 and Logitech Mouse Compatibility.Problem Description:MS Word functions normally except when pull down menus are used. When pull down menus are used, with a mouse, in the main editing screen text begins to disappear from the screen and the mouse ceases to function. This problem only occurs when operating Word in graphics mode, as opposed to text mode.Resolution:This is a problem with Logitech Mouse driver versions prior to version 5.01. Upgrade the Logitech mouse driver to a version later than 5.01.ŅĢ £ I `€„€”räUĒ9©żo€‚€‚€‚‚€‚€‚‚’Applications Effected:Microsoft Word V5.5.Work-around:Use Logitech Mouse Driver V5.01 or greater. If this is not possible try the following:Disable console redirection via the BIOS Setup program and no problems will be seen in any mode of operation. We recommend that before using Microsoft Word consol|Ī £ ²Ė e redirection is disabled. Console redirection should only be enabled if one is using it to redirect console messages to a scan code terminal connected to the serial ports. If the system has encountered this problem the screen can be restored by toggling from graphics mode to text mode and then back to graphics mode. At this point, the mouse will work correctly, until pull down menus are used again.c2|Ī  1—šˆ¦9’’’’ : PCPaint V2.0 / Logitech Mouse Compatibility Issue.v9£ | = H€s€”räUĒ9©żo€‚‚‚€‚’PCPaint V2.0 and Logitech Mouse Compatibility.Problem Description:This DOS-based software package is used to create images using a drawing board style work area. When using a Logitech PS/2 style mouse connected to the PS/2 mouse port on the rear of the Model 300SX-20 system several symptoms were encountered. These included failure of the mouse to operate correctly, distortion of the lower half of the screen (scrambled video), and the PCPaint icons becoming invisible. Logitech mouse drivers V4.00, V4.01 and V5.01 were tested and all encountered problems.¾m : Q p€Ū€”räUĒ9©żo€‚€‚€‚€‚‚€‚‚€‚€‚’Resolution:At this time, this is believed to be caused by the interaction of the PCPaint software, the keyboard controller firmware and the Logitech PS/2 mouse driver. Further details will be made available when the root cause of this problem is understood. This problem was also encountered on other Intel systems which use a similar keyboard controller.Applications Effected:PCPaint V2.0.Work-around:No problems were encountered when any serial mouse was used or when a Microsoft PS/2 style mouse was connected to the PS/2 style mouse port. Use either a serial mouse or a Microsoft PS/2 style mouse.`/| š 1äœ:’’’’š  Orchid Prodesigner / Mouse Compatibility Issue.j$:  F Z€I€”räUĒ9©żo€‚‚‚€‚€‚‚€‚’Orchid Prodesigner video add-in card and a mouse fail.Problem Description:When the on-board video subsystem is disabled and an Orchid Prodesigner add-in video adapter card is installed along with a mouse and mouse driver the system failed to pass a VGA hardware compatibility test suite. Without the mouse and mouse driver the system did pass all tests.Resolution:This has been identified as an Orchid Prodesigner problem. This is a compatibility problem with the Orchid video BIOS and the mouse driver. This fails on other systems.Ņš  H ^€„€”räUĒ9©żo€‚€‚€‚‚€‚€‚’Applications Effected:Any application that requires both an Orchid Prodesigner video adapter and a mouse.Work-around:Do not use a mouse and mouse driver when using the Orchid Prodesigner video card.q@  1¦® ;’’’’ = Wrong Warning Message Displayed with DOS Format Command Problem.%į “ D V€Ć€”räUĒ9©żo€‚‚‚€‚ƒ‚ƒ‚ƒ‚‚’Wrong warning message displayed with DOS format command.Problem Description:Under certain error conditions the wrong warning message will be displayed when using the DOS format command with floppy drive a:. With the floppy disk drive A empty (no floppy diskette installed) and "FORMAT A:" is entered at the DOS command prompt the system will respond with:"Invalid media or Track 0 bad - disk unusableFormat terminatedFormat another (Y/N)?"It should respond with:‰1 = X ~€c€”räUĒ9©żo€ƒ‚ƒ‚ƒ‚€‚‚€‚€‚‚€‚‚€‚‚€‚’"Not readyFormat terminatedFormat another (Y/N)?"Resolution:This is fixed in BIOS V1.10 32.L0. Upgrade to BIOS V1.10 32.L0 or later.Applications Effected:The DOS "format" command when used with drive A:.This does not happen with drive B:.Work-around:Ignore the incorrect message.tC“ ± 1{ œ)†<’’’’± I VGA Pass Through does not support Bi-Directional Dot Clock Problem.*ķ= ēA = H€Ū€”räUĒ9©żo€‚‚‚€‚’VGA Pass Though d± ēA = oes not support Bi-direction Dot clock.Problem Description:When the Matrox IP8 video capture card is used in the single monitor mode the screen will go blank after the Matrox drivers are loaded and executed. This typically happens at the point when Windows switches from the standard drivers to the Matrox drivers, but may be seen under DOS as well. This problem is caused because the 300SX20 video controller can not be clocked from pin 18 of the feature connector.ˆQ± oB 7 >€¢€”räUĒ9©żo€‚‚’There are three modes in which the VGA Pass-Though connector may be employed:b%ēA ŃD = H€K€P«€Y”räUĒ9©żo€‚‚‚’1) The VGA controller drives clock and data to both the on-board VGA connector and to the VGA Pass Through connector2) The off-board non-VGA device connected to the VGA Pass through connector drives data and clock to the on-board VGA connector, while the on-board VGA controller is disabled.3) The on-board VGA controller drives data out the VGA Pass Through connector, but it is being clocked by the off-board non-VGA device. In this mode the non-VGA device assert Feature Dot Clock Enable (J12 pin 11) and drives the Dot clock (J12 pin 18).y5oB JG D V€k€”räUĒ9©żo€‚‚ƒƒƒƒ‚ƒƒƒƒ‚‚‚’VGA Controller -----------------> Video DAC ------> 15-pin VGA Connector|\__________<-> VGA Pass thru ConnectorIt is the third mode of operation listed above that fails. In the single monitor mode where the captured video and VGA display are mixed onto the same display the Matrox IP8 card will try to synchronize the data from the on-board VGA controller by driving DOT clock. Since the on-board VGA controller is not setup up to be clocked from the VGA Pass Through connector it has no clock and without the DOT clock the screen is blank.Ļ~ŃD I Q p€ż€”räUĒ9©żo€‚€‚€‚€‚‚€‚‚€‚€‚’Resolution:This requires a hardware modification the 300SX20 PBA for this feature to be supported and Intel will not be immplementing the suuport for this feature.Applications Effected:The Matrox IP8 card used in single monitor mode or any device trying to clock the on-board VGA controller via the VGA Pass through connector.Work-around:Use the Dual Monitor mode..k:JG „I 1Õ® Š=’’’’„I īM VGA Pass Through connector pin 26 is not grounded Problem.XI ÜK = H€7€”räUĒ9©żo€‚‚‚€‚’VGA Pass Though connector pin 26 is not grounded.Problem Description:J12 pin 26 is not grounded as required in the VESA specification. This will not cause any problems for most applications requiring the use of the feature connector, since there are more than enough ground pins to provide adequate electrical grounding, even without this pin being connected. One exception are Matrox video capture cards which, instead of using pin 26 as a signal ground, use it as a means of detecting the presence of the on-board VGA subsystem.Ą„I īM R r€€”räUĒ9©żo€‚€‚€‚‚€‚€‚‚€‚€‚‚’Resolution:This requires a change to the PBA hardware and is not currently planned on being fixed.Applications Effected:Matrox video capture ISA bus add-in cards that use the feature connector.Work-around:For Matrox cards pin 26 on the cable connecting the Matrox card to the 300SX20's baseboard must be connected to another ground pin on the connector. Other ground pins on the feature connector are: 1, 3, 5, 15, 17, 19 and 21.W&ÜK EN 1ę)†`>’’’’EN ] DeTurbo Mode Runs a Little Fast Issue.n"īM æ€ L f€E€”räUĒ9©żo€‚€‚€‚€‚‚€‚€‚’Deturbo mode runs a little fast.Problem Description:Ideally, a system in deturbo mode should emulate an 8Mhz IBM PC. When performance test measurements were taken in deturbo mode the readings varied between 8.2Mhz and just under 9Mhz. The speed reported depended on the benchmark used to measure system bus timing. This is a limitation of the 82340 chip-setEN æ€ īM and will not be improved.Applications Effected:None. Softgaurd (a copy protection software package) that is known to use this feature passed the compatibility test suite.ž`EN ] > L€Ą€”räUĒ9©żo€‚€‚€‚’Resolution and Work-around:No resolution or work-around. Problem not noticeable by user.m<æ€ Ź 1śŠ`?’’’’Ź W… Printer Port Interrupt is not Disabled in Polled Mode Issue."Ž] ģƒ D V€½€”räUĒ9©żo€‚‚‚€‚‚‚‚€‚’Printer Port Interrupt not Disabled in Polled Mode.Problem Description:When the on-board printer port is used in polled mode the line printer interrupt is not disabled. This will tie up which ever interrupt is being used by the on-board line printer and prevents any other device from using the selected interrupt, even though the on-board printer port is not using the interrupt.When LPT1 is selected IRQ7 is used and when LPT2 is selected IRQ5 is used.Resolution:k"Ź W… I `€E€”räUĒ9©żo€‚‚€‚€‚‚€‚€‚’Do not use the LPT interrupt (either IRQ5 or IRQ7) when the on-board printer port is enabled.Applications Effected:Any system configurations that depend on the on-board line printer freeing up the printer port interrupt when the printer is used in polled mode.Work-around:None.Hģƒ Ÿ… 1ē`t@’’’’Ÿ… >Š Key Click Volume Issue.ĪW… ø‡ K d€€”räUĒ9©żo€‚‚‚€‚‚€‚€‚‚€‚’Key Click can Hardly Be Heard, Even at the Loudest Setting.Problem Description:It is possible to adjust the simulated key click sound generated via the on-board speaker when a key on the system keyboard is stroke by using a control sequence. The problem is that some people can not hear the key click sound even when the key click is adjusted to the highest levels.Resolution:None planned, most users can hear the key click.Applications Effected:†FŸ… >Š @ N€€”räUĒ9©żo€‚‚€‚€‚’Since this is a user interface feature no applications are directly effected. The user manual describes how to adjust the loudness of the key click via a CNTRL-ALT-+ sequence and if the user is not able to hear a key click sound that feature is not very useful.Work-around:Currently, the only work-around would be to add an external speaker to the system. This is possible, but requires a hardware modification to the PBA and to the chassis. There are no current plans to increase the volume of the speaker or to offer the instructions on how to add an off-board speaker.p?ø‡ ®Š 1± `Ū‚A’’’’®Š ļÄ PBA Version 511893-003, -004 and -005 Problem Descriptions MenuM>Š ūŒ = H€!€”räUĒ9©żo€‚€‚ƒ‚’Problem Descriptions for PBA #511893-003 to -005.Because BIOS V1.10 32.L0, the new stepping WD16C552 and the modified buzzer drive circuitry were incorporated into the -003, -004 and -005 PBA version prior to these changes actually being ECO'ed into the product, the problems associated with the older BIOS, WD16C552 and buzzer drive circuitry are not present in any of these PBA versions. These three changes were incorporated in all systems with pack dates of October 24, 1991 or later. This was done via QAN #OR1732.+ß®Š & L f€æ€”räUĒ9©żo€ƒć™lĆż‰‚‚€€‚€‚‚‚’None of the other changes from PBA version -003 to PBA version 005 either cause or fix any user visible problems. See the Board History Section for details regarding specific board revisions.Problems Fixed in the -003, -004 and -005 511893 PBA:Fast A20 Handler works correctly. DOS 5 loads correctly.WD16C552 Serial Controller works correctly. Communications SW no longer fails.First Choice communication software works, irregardless of serial port configuration.ŁūŒ HĮ = H€³€”räUĒ9©żo€‚‚‚‚‚‚‚’User definable drive types do not cause the system to hang. OK to use types 2 & 3.Setting default SETUP options does not clear password. Password remains& HĮ >Š valid.Enter SETUP at Pre-boot Only works. Prevents CNTL-ALT-INS from DOS.Cursor and page keys always respond in Setup.No erroneous warning messages occur during POST.DOS format command displays correct warning messages.MS Word V5.5 and Logitech Mouse work together. Most use Logitech driver V5.01 or later."°& jĆ r ²€a€”räUĒ9©żo€‚€‚€€‚ćp…Š€‰‚ćį+‰‚ć¶ŗŅc‰‚ćY”y­‰‚ć]ü&V‰‚ć¢UI所 ‚’Orchid Prodesigner video add-in card and a mouse work. Orchid fixed Prodesigner.Known Issues with the -003, -004 and -005 511893 PBA:AT&T UNIX Version 3.2.2 fails on the Intel Model 300SX-20Setting Memory Roll Disables Serial PortsOn-board Video Controller can not be set to SecondaryPOST Memory Tests Execute After a Warm BootPCPaint V2.0 and Logitech Mouse CompatibilityDeturbo Mode Runs a Little Fast…+HĮ ļÄ Z ‚€W€”räUĒ9©żoćE/š€‰‚ćč—R‰‚ć‹ā=œ‰‚ć.¼ä剂ćѕ‹/‰‚‚’VGA Pass Though does not fully support Bi-direction Dot clockPin 26 of the VGA Pass Though connector is not groundedPrinter port Interrupt not Disabled in Polled ModeSETUP can not be used when Console Redirection is EnabledKey Click can Hardly Be Heard, Even at the Loudest Setting_.jĆ NÅ 1ZtH‡B’’’’NÅ IŹ AT&T UNIX V3.2 Release 2 Compatibility ProblemIļÄ ŻĒ F Z€“€”räUĒ9©żo€‚‚‚€‚‚€‚€‚’AT&T UNIX Version 3.2.2 fails on the Intel Model 300SX-20.Problem Description:Because of an incompatibility between the WD90C11 register set and the video drivers used in the 3.2.2 version of AT&T's UNIX this Operating System can not be used with the on-board video controller. The problem is seen as video distortion caused by incorrect vertical or horizontal sync signals. This occurs after the "Booting UNIX ..." message appears.Resolution:This issue is resolved by upgrading to AT&T UNIX System V Version 4. AT&T's System V version 4 UNIX does not have this problem.l$NÅ IŹ H ^€I€”räUĒ9©żo€‚€‚€‚‚€‚€‚’Applications Effected:AT&T UNIX V3.2.2 and any applications requiring this version of the UNIX operating system. Third party operating systems that are direct derivatives of this version of the UNIX OS may fail as well. SCO UNIX and Interactive UNIX are not effected by this problem.Work-around:If a Sony VGA Character terminal is used the video appears correct. Also, AT&T has corrected this problem in the video drivers used in UNIX V4.0 and greater. We recommend using either any version of SCO UNIX or AT&T UNIX V4.0 or greater._.ŻĒ ØŹ 1_Ū‚“‰C’’’’ØŹ ØĶ Memory Roll Disables Serial Ports -- PBA -003.ÄIŹ ĮĢ U x€‰€”räUĒ9©żo€‚‚‚€‚‚€‚€愈@‰‚‚€‚€‚’Setting Memory Roll Disables Serial Ports.Problem Description:If a user sets either of the serial ports to enabled on page 3 of the SETUP screens and then subsequently enables memory roll on page 4 of the SETUP screens, the serial ports will automatically be set to disabled. This is not supposed to happen.Resolution:This is not fixed in BIOS version 1.10 32.L0, but this is resolved in BIOS V1.10 33.L0.Applications Effected:None.ēØØŹ ØĶ ? L€Q€”räUĒ9©żo€‚€‚€‚’Work-around:Enable Memory Roll first, then set the serial ports to enable after memory roll has already been set. This way the serial lines will remain enabled.o>ĮĢ Ī 18H‡ŪD’’’’Ī ­ Can not set On-Board Video Controller to Secondary -- PBA -003XØĶ { = H€7€”räUĒ9©żo€‚‚‚€‚’On-board Video Controller can not be set to Secondary.Problem Description:When the on-board video is set to secondary the boot messages still appear on the on-board video interface and do not get redirected to the monochrome display. There is an option on page 2 of the BIOS SETUP screens and it is intended to be used to set the on-board video controller to secondary in the case were a user wishes to boot from an add-inĪ { ØĶ monochrome video card instead of from the on-board VGA interface. What this means is that the POST, BIOS and OS boot messages will appear on the monochrome display and not on the VGA display while the system is booting. This is sometimes used in CAD applications were the console is used as a text only display and the graphics are displayed on the VGA monitor.2ŪĪ ­ W |€·€”räUĒ9©żo€‚€‚€愈@‰‚‚€‚€‚‚€‚€‚’Resolution:This is a system BIOS problem which may never be corrected and may be removed from the SETUP screen in future releases of the BIOS. This is not fixed in BIOS version 1.10 32.L0. BIOS V1.10 33.L0 removes this option from the SETUP screen.Applications Effected:Applications that boot from an add-in monochrome display in a dual display application.Work-around:For DOS based applications the DOS command "mode mono" can be included in the system's autoexec.bat file. This will switch the active display to the monochrome adapter card prior to the application software being invoked. A similar solution can be used for other operating systems that provide a means for switching the active display.\+{  1Œ“‰³E’’’’  9 POST Memory Test Execute after a Warm Boot.0Ų­ 9 X ~€±€”räUĒ9©żo€‚‚‚€‚‚€‚€‚‚€‚€‚‚€‚€‚’POST Memory Tests Execute After a Warm Boot.Problem Description:The POST memory tests are supposed to only execute after a cold boot. These tests will always execute, even after a CNTLR-ALT-DEL.Resolution:This is resolved in BIOS V1.10 33.L0. Use BIOS V1.10 33.L0 or later to eliminate this issue.Applications Effected:None.Work-around:Ignore the fact that the test is re-running or type the "Space bar" to about execution of the POST Memory Tests.c2  œ 1—ŪY F’’’’œ Š PCPaint V2.0 / Logitech Mouse Compatibility Issue.v99  = H€s€”räUĒ9©żo€‚‚‚€‚’PCPaint V2.0 and Logitech Mouse Compatibility.Problem Description:This DOS-based software package is used to create images using a drawing board style work area. When using a Logitech PS/2 style mouse connected to the PS/2 mouse port on the rear of the Model 300SX-20 system several symptoms were encountered. These included failure of the mouse to operate correctly, distortion of the lower half of the screen (scrambled video), and the PCPaint icons becoming invisible. Logitech mouse drivers V4.00, V4.01 and V5.01 were tested and all encountered problems.¾mœ Š Q p€Ū€”räUĒ9©żo€‚€‚€‚‚€‚€‚‚€‚€‚’Resolution:At this time, this is believed to be caused by the interaction of the PCPaint software, the keyboard controller firmware and the Logitech PS/2 mouse driver. Further details will be made available when the root cause of this problem is understood. This problem was also encountered on other Intel systems which use a similar keyboard controller.Applications Effected:PCPaint V2.0.Work-around:No problems were encountered when any serial mouse was used or when a Microsoft PS/2 style mouse was connected to the PS/2 style mouse port. Use either a serial mouse or a Microsoft PS/2 style mouse.W& ' 1¤³€G’’’’' ^@ DeTurbo Mode Runs a Little Fast Issue.n"Š • L f€E€”räUĒ9©żo€‚€‚€‚€‚‚€‚€‚’Deturbo Mode Runs a Little Fast.Problem Description:Ideally, a system in deturbo mode should emulate an 8Mhz IBM PC. When performance test measurements were taken in deturbo mode the readings varied between 8.2Mhz and just under 9Mhz. The speed reported depended on the benchmark used to measure system bus timing. This is a limitation of the 82340 chip-set and will not be improved.Applications Effected:None. Softgaurd (a copy protection software package) that is known to use this feature passed the compatibility test suite.½v' ^@ G ^€ģ€”räUĒ9©żo€‚€‚€‚‚€‚€‚’Resolution and Work-around:No r• ^@ Š esolution or work-around. Problem not noticeable by user.Work-around:None.tC• Ņ@ 1‰ Y ˆH’’’’Ņ@ ēI VGA Pass Through does not support Bi-Directional Dot Clock Problem.0ó^@ C = H€ē€”räUĒ9©żo€‚‚‚€‚’VGA Pass Though does not fully support Bi-direction Dot clock.Problem Description:When the Matrox IP8 video capture card is used in the single monitor mode the screen will go blank after the Matrox drivers are loaded and executed. This typically happens at the point when Windows switches from the standard drivers to the Matrox drivers, but may be seen under DOS as well. This problem is caused because the 300SX20 video controller can not be clocked from pin 18 of the feature connector.ÆtŅ@ ±E ; D€é€”räUĒ9©żo€‚‚‚‚‚’There are three modes in which the VGA Pass-Though connector may be employed:1) The VGA controller drives clock and data to both the on-board VGA connector and to the VGA Pass Through connector2) The off-board non-VGA device connected to the VGA Pass through connector drives data and clock to the on-board VGA connector, while the on-board VGA controller is disabled.3) The on-board VGA controller drives data out the VGA Pass Through connector, but it is being clocked by the off-board non-VGA device. In this mode the non-VGA device assert Feature Dot Clock Enable (J12 pin 11) and drives the Dot clock (J12 pin 18).y5C *H D V€k€”räUĒ9©żo€‚‚ƒƒƒƒ‚ƒƒƒƒ‚‚‚’VGA Controller -----------------> Video DAC ------> 15-pin VGA Connector|\__________<-> VGA Pass thru ConnectorIt is the third mode of operation listed above that fails. In the single monitor mode where the captured video and VGA display are mixed onto the same display the Matrox IP8 card will try to synchronize the data from the on-board VGA controller by driving DOT clock. Since the on-board VGA controller is not setup up to be clocked from the VGA Pass Through connector it has no clock and without the DOT clock the screen is blank.½l±E ēI Q p€Ł€”räUĒ9©żo€‚€‚€‚‚€‚€‚‚€‚€‚’Resolution:This requires a hardware modification the 300SX20 PBA for this feature to be supported. Intel Engineering is currently evaluating supporting this feature.Applications Effected:The Matrox IP8 card used in single monitor mode or any device trying to clock the on-board VGA controller via the VGA Pass through connector.Work-around:None.k:*H RJ 1Š€ߋI’’’’RJ ·N VGA Pass Through connector pin 26 is not grounded Problem.UēI §L = H€1€”räUĒ9©żo€‚‚‚€‚’Pin 26 of the VGA Pass Though connector is not grounded.Problem Description:J12 pin 26 is not grounded as required in the VESA specification. This will not cause any problems for most applications requiring the use of the feature connector, since there are more than enough ground pins to provide adequate electrical grounding, even without this pin being connected. One exception are Matrox video capture cards which instead of using pin 26 as a signal ground they use it as a means of detecting the presence of VGA subsystem.æRJ ·N Q p€€”räUĒ9©żo€‚€‚€‚‚€‚€‚‚€‚€‚’Resolution:This requires a change to the PBA hardware and is not currently planned on being fixed.Applications Effected:Matrox video capture ISA bus add-in cards that use the feature connector.Work-around:For Matrox cards pin 26 on the cable connecting the Matrox card to the 300SX20's baseboard must be connected to another ground pin on the connector. Other ground pins on the feature connector are: 1, 3, 5, 15, 17, 19 and 21.m<§L $O 1 ˆ"J’’’’$O »‚ Printer Port Interrupt is not Disabled in Polled Mode Issue. Ż·N P C T€»€”räUĒ9©żo€‚‚‚€‚‚‚€‚’Printer port Interrupt not Disabled in Polled Mode.Problem Description:When the on-board printer port is used in polled mode the line printer interr$O P ·N upt is not disabled. This will tie up which ever interrupt is being used by the on-board line printer and prevents any other device from using the selected interrupt, even though the on-board printer port is not using the interrupt.When LPT1 is selected IRQ7 is used and when LPT2 is selected IRQ5 is used.Resolution:k"$O »‚ I `€E€”räUĒ9©żo€‚‚€‚€‚‚€‚€‚’Do not use the LPT interrupt (either IRQ5 or IRQ7) when the on-board printer port is enabled.Applications Effected:Any system configurations that depend on the on-board line printer freeing up the printer port interrupt when the printer is used in polled mode.Work-around:None.k:P &ƒ 1hߋ‘K’’’’&ƒ #‡ SETUP can not be used when Console Redirection is Enabled.h+»‚ Ž… = H€W€”räUĒ9©żo€‚‚‚€‚’SETUP can not be used when Console Redirection is Enabled.Problem Description:If a Scan Code terminal is connected to one of the serial ports and console redirection is enabled for that port and the ROM-Based SETUP program is invoked incorrect characters will be displayed and if the user tries to move the cursor to select different fields the system will hang. This means that the user must then reboot the system. If the user does not have a VGA monitor present it may not be possible to correctly configure the system using the SETUP program.•D&ƒ #‡ Q p€‰€”räUĒ9©żo€‚€‚€‚‚€‚€‚‚€‚€‚’Resolution:BIOS V1.10 33.L0 resolves this problem. BIOS V1.10 32.L0 includes this problem, while BIOS V1.10 31.L0 did not.Applications Effected:Any application where the primary terminal connected to the system is a scan code terminal and console redirection is being used.Work-around:Use BIOS V1.10 33.L0.HŽ… k‡ 1ē"„L’’’’k‡ Œ Key Click Volume Issue.Ī#‡ „‰ K d€€”räUĒ9©żo€‚‚‚€‚‚€‚€‚‚€‚’Key Click can Hardly Be Heard, Even at the Loudest Setting.Problem Description:It is possible to adjust the simulated key click sound generated via the on-board speaker when a key on the system keyboard is stroke by using a control sequence. The problem is that some people can not hear the key click sound even when the key click is adjusted to the highest levels.Resolution:None planned, most users can hear the key click.Applications Effected:†Fk‡ Œ @ N€€”räUĒ9©żo€‚‚€‚€‚’Since this is a user interface feature no applications are directly effected. The user manual describes how to adjust the loudness of the key click via a CNTRL-ALT-+ sequence and if the user is not able to hear a key click sound that feature is not very useful.Work-around:Currently, the only work-around would be to add an external speaker to the system. This is possible, but requires a hardware modification to the PBA and to the chassis. There are no current plans to increase the volume of the speaker or to offer the instructions on how to add an off-board speaker.a0„‰ kŒ 1\‘€M’’’’kŒ WĮ PBA Version 511893-006 Problem Descriptions Menuķ£ Œ X J b€G€”räUĒ9©żo€‚€‚ć™lĆż‰‚‚€€‚’Problem Descriptions for PBA #511893-006.See the Board History Section for details regarding specific board revisions.Problems Fixed in 511893-006 PBA:©kŒ f e ˜€S€PÖ,”räUĒ9©żo€€ €‚€ €‚€ €‚€ €€ €‚€ €‚€‚’SETUP CAN NOW be used when Console Redirection is EnabledPOST Memory Tests DO NOT Execute After a Warm BootSetting Memory Roll DOES NOT Disable Serial PortsOn-board Video Controller STILL can not be set to Secondary, but since this is no longer an available option in SETUP it is not considered a problem.PCPaint V2.0 and Logitech Mouse Compatibility was solved by using the latest Logitech mouse driver.åwX WĮ n Ŗ€ļ€”räUĒ9©żo€€‚ć5$’Ž€‰‚ćŲż8Ų‰€ ‚ć{×ß!€‰‚汆k‰‚ć"4‰‚ćgrV}‰‚‚’Known Issues with the 511893-006 PBA:ATf WĮ Œ &T UNIX Version 3.2.2 fails on the Intel Model 300SX-20Deturbo Mode Runs a Little FastVGA Pass Though does not fully support Bi-direction Dot clockPin 26 of the VGA Pass Though connector is not groundedPrinter port Interrupt not Disabled in Polled ModeKey Click can Hardly Be Heard, Even at the Loudest Setting_.f ¶Į 1Z„m„N’’’’¶Į ±Ę AT&T UNIX V3.2 Release 2 Compatibility ProblemIWĮ EÄ F Z€“€”räUĒ9©żo€‚‚‚€‚‚€‚€‚’AT&T UNIX Version 3.2.2 fails on the Intel Model 300SX-20.Problem Description:Because of an incompatibility between the WD90C11 register set and the video drivers used in the 3.2.2 version of AT&T's UNIX this Operating System can not be used with the on-board video controller. The problem is seen as video distortion caused by incorrect vertical or horizontal sync signals. This occurs after the "Booting UNIX ..." message appears.Resolution:This issue is resolved by upgrading to AT&T UNIX System V Version 4. AT&T's System V version 4 UNIX does not have this problem.l$¶Į ±Ę H ^€I€”räUĒ9©żo€‚€‚€‚‚€‚€‚’Applications Effected:AT&T UNIX V3.2.2 and any applications requiring this version of the UNIX operating system. Third party operating systems that are direct derivatives of this version of the UNIX OS may fail as well. SCO UNIX and Interactive UNIX are not effected by this problem.Work-around:If a Sony VGA Character terminal is used the video appears correct. Also, AT&T has corrected this problem in the video drivers used in UNIX V4.0 and greater. We recommend using either any version of SCO UNIX or AT&T UNIX V4.0 or greater.W&EÄ Ē 1‚€‡O’’’’Ē 3Ź DeTurbo Mode Runs a Little Fast Issue.n"±Ę vÉ L f€E€”räUĒ9©żo€‚€‚€‚€‚‚€‚€‚’Deturbo Mode Runs a Little Fast.Problem Description:Ideally, a system in deturbo mode should emulate an 8Mhz IBM PC. When performance test measurements were taken in deturbo mode the readings varied between 8.2Mhz and just under 9Mhz. The speed reported depended on the benchmark used to measure system bus timing. This is a limitation of the 82340 chip-set and will not be improved.Applications Effected:None. Softgaurd (a copy protection software package) that is known to use this feature passed the compatibility test suite.½vĒ 3Ź G ^€ģ€”räUĒ9©żo€‚€‚€‚‚€‚€‚’Resolution and Work-around:No resolution or work-around. Problem not noticeable by user.Work-around:None.tCvÉ §Ź 1X m„lP’’’’§Ź Č VGA Pass Through does not support Bi-Directional Dot Clock Problem.0ó3Ź ×Ģ = H€ē€”räUĒ9©żo€‚‚‚€‚’VGA Pass Though does not fully support Bi-direction Dot clock.Problem Description:When the Matrox IP8 video capture card is used in the single monitor mode the screen will go blank after the Matrox drivers are loaded and executed. This typically happens at the point when Windows switches from the standard drivers to the Matrox drivers, but may be seen under DOS as well. This problem is caused because the 300SX20 video controller can not be clocked from pin 18 of the feature connector.Æt§Ź †Ļ ; D€é€”räUĒ9©żo€‚‚‚‚‚’There are three modes in which the VGA Pass-Though connector may be employed:1) The VGA controller drives clock and data to both the on-board VGA connector and to the VGA Pass Through connector2) The off-board non-VGA device connected to the VGA Pass through connector drives data and clock to the on-board VGA connector, while the on-board VGA controller is disabled.3) The on-board VGA controller drives data out the VGA Pass Through connector, but it is being clocked by the off-board non-VGA device. In this mode the non-VGA device assert Feature Dot Clock Enable (J12 pin 11) and drives the Dot clock (J12 pin 18).y5×Ģ  D V€k€”räUĒ9©żo€‚‚ƒƒƒƒ‚ƒƒƒƒ‚‚‚’VGA Controller -----------------> Video DAC --†Ļ  3Ź ----> 15-pin VGA Connector|\__________<-> VGA Pass thru ConnectorIt is the third mode of operation listed above that fails. In the single monitor mode where the captured video and VGA display are mixed onto the same display the Matrox IP8 card will try to synchronize the data from the on-board VGA controller by driving DOT clock. Since the on-board VGA controller is not setup up to be clocked from the VGA Pass Through connector it has no clock and without the DOT clock the screen is blank.½l†Ļ Č Q p€Ł€”räUĒ9©żo€‚€‚€‚‚€‚€‚‚€‚€‚’Resolution:This requires a hardware modification the 300SX20 PBA for this feature to be supported. Intel Engineering is currently evaluating supporting this feature.Applications Effected:The Matrox IP8 card used in single monitor mode or any device trying to clock the on-board VGA controller via the VGA Pass through connector.Work-around:None.k:  3 1Š‡CQ’’’’3 ˜ VGA Pass Through connector pin 26 is not grounded Problem.UČ ˆ = H€1€”räUĒ9©żo€‚‚‚€‚’Pin 26 of the VGA Pass Though connector is not grounded.Problem Description:J12 pin 26 is not grounded as required in the VESA specification. This will not cause any problems for most applications requiring the use of the feature connector, since there are more than enough ground pins to provide adequate electrical grounding, even without this pin being connected. One exception are Matrox video capture cards which instead of using pin 26 as a signal ground they use it as a means of detecting the presence of VGA subsystem.æ3 ˜ Q p€€”räUĒ9©żo€‚€‚€‚‚€‚€‚‚€‚€‚’Resolution:This requires a change to the PBA hardware and is not currently planned on being fixed.Applications Effected:Matrox video capture ISA bus add-in cards that use the feature connector.Work-around:For Matrox cards pin 26 on the cable connecting the Matrox card to the 300SX20's baseboard must be connected to another ground pin on the connector. Other ground pins on the feature connector are: 1, 3, 5, 15, 17, 19 and 21.m<ˆ  1ųlBR’’’’  Printer Port Interrupt is not Disabled in Polled Mode Issue. Ż˜ % C T€»€”räUĒ9©żo€‚‚‚€‚‚‚€‚’Printer port Interrupt not Disabled in Polled Mode.Problem Description:When the on-board printer port is used in polled mode the line printer interrupt is not disabled. This will tie up which ever interrupt is being used by the on-board line printer and prevents any other device from using the selected interrupt, even though the on-board printer port is not using the interrupt.When LPT1 is selected IRQ7 is used and when LPT2 is selected IRQ5 is used.Resolution:k"  I `€E€”räUĒ9©żo€‚‚€‚€‚‚€‚€‚’Do not use the LPT interrupt (either IRQ5 or IRQ7) when the on-board printer port is enabled.Applications Effected:Any system configurations that depend on the on-board line printer freeing up the printer port interrupt when the printer is used in polled mode.Work-around:None.H% Ų 1.C%S’’’’Ų ƒA Key Click Volume Issue.Ī ń K d€€”räUĒ9©żo€‚‚‚€‚‚€‚€‚‚€‚’Key Click can Hardly Be Heard, Even at the Loudest Setting.Problem Description:It is possible to adjust the simulated key click sound generated via the on-board speaker when a key on the system keyboard is stroke by using a control sequence. The problem is that some people can not hear the key click sound even when the key click is adjusted to the highest levels.Resolution:None planned, most users can hear the key click.Applications Effected:†FŲ ƒA @ N€€”räUĒ9©żo€‚‚€‚€‚’Since this is a user interface feature no applications are directly effected. The user manual describes how to adjust the loudness of the key click via a CNTRL-ALT-+ sequence and if the user is not able toń ƒA  hear a key click sound that feature is not very useful.Work-around:Currently, the only work-around would be to add an external speaker to the system. This is possible, but requires a hardware modification to the PBA and to the chassis. There are no current plans to increase the volume of the speaker or to offer the instructions on how to add an off-board speaker.Hń ĖA 1Ŗ %äŠT’’’’ĖA -N Known Mechanical IssuesĮƒA ąC T v€ƒ€”rāUĒ9©żo€‚‚‚‚€€‚€‚€‚€€‚€‚’Mechanical Subsystems IssuesA) Floppy drive to peripheral rail mounting procedure required.Problem Description:When the floppy is not mounted using the correct procedure the peripheral rail will bow and make contact with the spindle on the bottom side of the floppy disk drive.Problem Solution:The bottom of the floppy carrier was modified in September of 1991 to eliminate the problem caused by it making contact with the spindle.(įĖA F G \€Ć€”rāUĒ9©żo€‚€€‚€‚€‚‚’Work-Around:When installing a 3.5" floppy disk drive onto the peripheral slide rail the screws must be installed in a specific order. The order is as follows: front left, rear left, front right and then rear right. This is documented in the 300SX20 User's Guide, along with a picture showing the correct assembly technique. Failure to follow this procedure may cause the floppy disk to work unreliably.B) Floppy assembly to peripheral bay mounting procedure required.„6ąC ŒH N j€m€”rāUĒ9©żo€‚€€‚€‚€‚€‚€‚’Problem Description:When the floppy assembly is mounted into the peripheral bay without ensuring that it is flush with the left side of the peripheral bay the front bezel may hit the floppy drive when it is installed and may push up against the right side of the floppy disk drive causing it to bend. This may cause the floppy not to operate correctly.Problem Solution:When the 3.5" floppy assemble (floppy disk drive attached to the peripheral mounting slide) is installed into the peripheral sub-chassis bay the following procedure must be followed:ÕF ©J H ^€«€”rāUĒ9©żo€ƒ‚ƒ‚ƒƒ‚ƒƒ‚ƒ‚ƒƒ‚ƒƒ‚’1) Place the floppy assembly into the peripheral bay.2) Install both screws that hold the floppy assembly to the peripheral sub-chassis,but do not tighten the screws.Leave them loose enough to adjust the position of the assembly.3) With your thumb (or equivalent) placed between the floppy disk drive and theleft side of the floppy mounting slide, push the floppy assembly firmly tothe left so that it makes contact with the peripheral sub-chassis. „7ŒH -N M h€o€”rāUĒ9©żo€ƒƒ‚ƒ‚ƒƒ‚ƒƒ‚ƒ‚€‚‚‚€‚’Hold the assembly in that position.4) While still holding the floppy assembly towards the left, tighten the left mounting screw (slotted) and then the right mounting screw (not slotted).5) Install power and signal cables.C) Cabling Error in Early Systems.In some systems with package ship dates earlier than May 1991 there was a problem with the labeling of the two indicator cables coming from the front bezel assembly and connected to the 300SX20 baseboard. The cables are correctly installed and function correctly, only the labels attached to the cables are wrong. The power indicator cable connected to J21 of the baseboard was incorrectly labeled J22 and the hard disk drive activity cable connected to J22 of the baseboard was incorrectly labeled J18. This was corrected in mid-April of 1991.Z)©J ‡N 1Ā€Œ†U’’’’‡N c… Known Issues with Intel Supplied SoftwareAś-N Ō€ G \€õ€”rāUĒ9©żo€‚‚€‚‚€‚‚‚€‚’Issues with Intel Supplied SoftwareVideo Drivers are not now, nor will ever be shipped with each system.Instead they are available via IntelTechDirect (iPAN).1) Western Digital WD90C11 screen saver utility hangs system with several programs.The screen saver utility is provided as part of the vi‡N Ō€ -N deo utilities diskette from Western Digital Corporation and is intended to be used with the WD90C11 video controller chip. This utility is a Terminate and Stay Resident (TSR) program called SS.EXE.¹Q‡N ƒ h ž€£€”rāUĒ9©żo€‚€€‚€‚€‚€€€‚€‚€€€€‚‚‚‚€‚’Problem Description:When the Western Digital screen saver utility was used along with Borland Sidekick Plus V1.01C or with PC Paintbrush IV V1.0 the system would hang.Applications Affected: Sidekick, PC Paintbrush IV V.10 and SS.EXE.Work-around: Do not use the WD screen saver with these two software packages.2) Western Digital WD90C11 video mode switching utility switches to wrong modes.A utility called VGA1024C.EXE is provided as part of the video utilities diskette. This command when invoked prompts the user on which video mode the system should be set to.ÖqŌ€ c… e ˜€ć€”rāUĒ9©żo€‚€€‚€‚‚€‚€€€€‚‚€€€‚‚€‚’Problem Description:The Western Digital VGA1024C.EXE command will set the system to 132x43 mode when the 132x25 mode was selected.Also, if the 132x25 mode is selected the system will be set to the 132x43 mode.Applications Affected: NoneWork-around:Select the desired mode by choosing the incorrect mode (e.g if 132x25 is desired select 132x43).Lƒ ƅ 1‰Œ†< V’’’’ƅ ģ‹ Pre-Production PBA Versions 5c… O‰ k ¤€k€˜lŲWĆ/­…oķY€‚‚‚€€€€€‚‚€€€€‚€€€€€‚’Pre-Production 300SX20 Board HistoryPrinted Board Assembly Identified as Anigma:This version of the 300SX-20 baseboard was produced as an engineering evaluation board. These boards should not be used as evaluation units for customers and should be returned to IntelTechDirect. No IntelTechDirect support will be provided for this version PBA.PBA: 508351 -001:This was used in the engineering model build and is not supported by IntelTechDirect. Some of these boards were upgraded to be equivalent to the 511893-002 PBA and can be used for functional and performance evaluation of the product. These boards should not be used by customers wishing to evaluate the product for FCC, UL, CSA or other regulatory agency requirements. This board has the same problems listed under the 511893-002 PBA.Eƅ ģ‹ X ~€‹€˜lŲWĆ/­…oķY€‚€€€€‚€€€€€‚’PBA: 511893 -001:This version was used in the pre-production builds to evaluate the product's manufacturability. This version is also not supported by IntelTechDirect. These boards can be upgraded to production level products, but Intel will not provide this as an upgrade. This version had problems running in 1024x768 resolution due to a down revision WD90C61 clock chip. Bad lots identified as date code 02 9XXX. Intel part number 201251-202 uses a later date code and does not have any problems. This product includes the same problems listed for 511893-002.GO‰ 3Œ 1\Ā€W’’’’3Œ TĄ PBA Version 511893-002Šģ‹ LŽ I `€”€˜lŲWĆ/­…oķY€€‚‚‚‚‚‚ƒ‚ƒ‚ƒ‚’PBA Version 511893-002Effective April, 1991, This was the first production release PBA.This was the first version released into manufacturing and is fully supported by the IntelTechDirect. This product contains 2MB of DRAM using two 80NSec 1MB SIMM packages. The BIOS and Keyboard controller versions are:Keyboard Controller Version: 1.00.10 at U9 P/N 506425.Phoenix ROM BIOS PLUS Version: 1.10.31.L0 at U32 P/N 508780-001.Schematic Number 511897.L3Œ ˜Ž > L€€˜lŲWĆ/­…oķY€‚€‚’See Also:„=LŽ  G#^€zĀ"€€ć²×Æ€‰‚’€*€‚’’’BIOS V1.10 31.L0BIOS V1.10 31.L0 Technical Information‹D˜Ž § G#^€ˆĀ"€€ć”ƒM€‰‚’€4€‚’’’PBA 511893-002 IssuesProblem Descriptions for PBA #511893-002}3 0Ą J#d€fĀ"€€ć> ‡€‰‚’€ €€‚’’’System BIOS§ 0Ą ģ‹ Phoenix Technologies System BIOS$§ TĄ " €€€’G0Ą ›Ą 1u< c„X’’’’›Ą ÉČ PBA Version 511893-003ÆgTĄ JĮ H `€Ī€˜lŲWĆ/­…oķY€€‚€‚€‚‚‚‚’PBA Version 511893-003Effective September, 1991This revision included the following changes:y8›Ą ĆĮ A#R€p»·€€€‚’€.€‚’’’New BIOS V1.10 32.L0The old version was 1.10 31.L0.”MJĮ WĀ G#^€š»·"€€ć?˜ŸŸ€‰‚’€V€‚’’’New Floppy Disk Controller (82077AA-1)The old controller was an 82077.¢UĆĮ łĀ M#j€Ŗ»·(€€ćžā+P€‰€‚’€T€€‚’’’New video RAM DAC stepping (F-Step).The old version was an INMOS 176 D-Step.£\WĀ œĆ G#^€ø»·"€€ć8ĖŃ²€‰‚’€T€‚’’’New 82340 Chip Set steppings (B-Step)The 82343 and the 82344 were Non-A Step devices.ÓłĀ ¶Ä G \€§€˜lŲWĆ/­…oķY€‚‚ƒ‚ƒ‚ƒ‚‚€‚’PBA 511893-003 Information:Phoenix ROM BIOS PLUS Version: 1.10.32.L0 at U32 P/N 515850-001.Keyboard Controller Version: 1.00.10 at U9 P/N 506425.PBA 511893-003 uses Schematic Number 511897.See Also:„=œĆ :Å G#^€zq/"€€ć0x‹€‰‚’€*€‚’’’BIOS V1.10 32.L0BIOS V1.10 32.L0 Technical Information”M¶Ä ĪÅ G#^€šq/"€€ć?Śķ#€‰‚’€F€‚’’’PBA #511893-003, -004 and -005Problem Descriptions for PBA #511893-003F:Å ^Ę J#d€Œq/"€€ćļ6”€‰‚’€P€€‚’’’Intel 82343 PC/AT System ControllerVLSI used for PC/AT Control¤ZĪÅ Ē J#d€“q/"€€ć’)˜€‰‚’€H€€‚’’’Intel 82344 ISA Bus Controller PC/AT ISA Bus Control VLSI and ISA Slot information—M^Ę ™Ē J#d€šq/"€€ćąµ €‰‚’€*€€‚’’’Video Subsystem WD90C11 Controller, Video Interface, BIOS and Drivers}3Ē Č J#d€fq/"€€ć> ‡€‰‚’€ €€‚’’’System BIOSPhoenix Technologies System BIOSE™Ē „Č J#d€Šq/"€€ć’d—o€‰‚’€"€€‚’’’Peripherals Floppy Controller, IDE Interface, Peripheral Bays$Č ÉČ " €€€’C„Č É 1z€r†Y’’’’ É CĢ 82077AA-1 Features[!ÉČ gÉ : D€B€˜lŲWĆ/­…oķY€‚’New Floppy Controller Featuresć› É JĖ H ^€7€°˜lŲWĆ/­…oķY€‚‚‚‚ƒƒ‚‚‚ƒƒ‚‚’The 82077AA-1 supports the following new features that the 82077 did not support:1) Perpendicular Recording.This allows the system to be used with floppy disk drives that support perpendicular media which can store up to 4MB on a 3.5" floppy diskette.2) Integrated Tape Drive Support.This allows the system to use fast streaming tape drives that interface directly to the floppy disk drive cable.F gÉ Ė : D€€˜lŲWĆ/­…oķY€‚’See Also:EJĖ Ģ J#d€Šz9"€€ć’d—o€‰‚’€"€€‚’’’Peripherals Floppy Controller, IDE Interface, Peripheral Bays$Ė CĢ " €€€’KĢ ŽĢ 1±c„ø‡Z’’’’ŽĢ ōĪ Video RAM DAC Improvements]!CĢ ėĢ < H€B€ °°˜lŲWĆ/­…oķY€‚’INMOS 176 RAM DAC EnhancementsŹŽĢ óĶ > J€•€°˜lŲWĆ/­…oķY€‚‚‚’While functionally compatible with the older version, the new RAM DAC provides an improved color display and will eliminate any sparkle or snow that may have been displayed by the previous version.F ėĢ 9Ī : D€€˜lŲWĆ/­…oķY€‚’See Also:—MóĶ ŠĪ J#d€š‚5 "€€ćąµ €‰‚’€*€>€‚’’’Video Subsystem WD90C11 Controller, Video Interface, BIOS and Drivers$9Ī ōĪ " €€€’EŠĪ 9Ļ 1œr†¢[’’’’9Ļ ˜ 82340 B-Step Devices\ ōĪ •Ļ < H€@€°˜lŲWĆ/­…oķY€‚‚’New 82340 Chip Set SteppingsŸ_9Ļ @ @ N€æ€˜lŲWĆ/­…oķY€‚€‚‚’The new chip set stepping are fully compat•Ļ @ ōĪ ible with the previous steppings and while these devices contain improvements there are no user visible differences between the NonA Step devices and the B-Step devices. For detailed information refer to the Intel Data sheet for the B-Step devices available from your local Intel Sales Office.See Also:F•Ļ Š J#d€Œq)"€€ćļ6”€‰‚’€P€€‚’’’Intel 82343 PC/AT System ControllerVLSI used for PC/AT Control¤Z@ t J#d€“q)"€€ć’)˜€‰‚’€H€€‚’’’Intel 82344 ISA Bus Controller PC/AT ISA Bus Control VLSI and ISA Slot information$Š ˜ " €€€’Gt ß 1 ø‡Ā\’’’’ß « PBA Version 511893-004„c˜ „ B T€Ę€˜lŲWĆ/­…oķY€€‚‚‚‚‚‚’PBA Version 511893-004Effective October, 1991This revision included the following changes:@ß  A#R€€ĮŠ€€€‚’€B€‚’’’New F-Step WD16C552 ControllerThe old version was a C-Step.y8„ ~ A#R€pĮŠ€€€‚’€6€‚’’’An alternate SIMM ModuleThe old P/N was 109889-080.‡F  A#R€ŒĮŠ€€€‚’€L€‚’’’New B-Step 82385SX Cache ControllerThe old stepping was a SAMPLE.‡F~ Œ A#R€ŒĮŠ€€€‚’€L€‚’’’New D-Step of the 82386SX-20Mhz CPUThe old stepping was a C-Step.ˆG  A#R€ŽĮŠ€€€‚’€`€‚’’’A new 2x9 dual connector for the serial portsImproved AvailibilityæuŒ Ó J b€ė€˜lŲWĆ/­…oķY€‚‚ƒ‚ƒ‚ƒ‚‚€€‚’PBA 511893-004 Information:Phoenix ROM BIOS PLUS Version: 1.10.32.L0 at U32 P/N 515850-001.Keyboard Controller Version: 1.00.10 at U9 P/N 506425.Schematic Number 511897.The only change that has any user visible effects is the new WD16C552 Serial / Parallel controller. This new F-Step device resolves the known problems that caused communications software to fail. The new WD16C552 was retrofitted into the -002 and -003 versions of this PBA via QAN #OR1732. Systems with ship dates of October 24, 1991 or later include the new device. The new device can be identified by a large "D" or "F" after the date code.ę™ ¹ M h€3€˜lŲWĆ/­…oķY€‚€€€€‚‚€‚’None of the other changes have any user visible effects. These changes were made because the older version devices would no longer be available, with the exception of the new SIMM module. The new SIMM module was included as the preferred alternate to the older 9-piece SIMM module to improve availability and because it is more reliable. The new SIMM module only has 3 active components.See Also:”MÓ M G#^€šO""€€ć?Śķ#€‰‚’€F€‚’’’PBA #511893-003, -004 and -005Problem Descriptions for PBA #511893-004‰?¹ Ö J#d€~O""€€ć*Ź*€‰‚’€€€‚’’’386SX CPU20MHz 386SX CPU and 387SX Numeric CO ProcessorŽDM d J#d€ˆO""€€ć*"hŅ€‰‚’€$€€‚’’’Cache Memory 82385SX Cache Controller and 16KB of Cache SRAM‹DÖ ļ G#^€ˆO""€€ć–3ø?€‰‚’€(€‚’’’System Memory Up to 16MB of on-board 80Nsec DRAM using SIMMs˜Nd ‡ J#d€œO""€€ćr÷±€‰‚’€4€€‚’’’On-Board I/O Devices Serial / Parallel Ports, Keyboard, Mouse, Speaker$ļ « " €€€’G‡ ņ 1¢ž]’’’’ņ ·B PBA Version 511893-005%Ł« #@ L f€³€˜lŲWĆ/­…oķY€€‚‚‚‚‚‚ƒ‚‚‚‚ƒ‚ƒ‚’PBA Version 511893-005Effective December, 1991This revision included the following changes:1) The circuitry that is used to drive the Piezo acoustic buzzer (the on-board speaker) was modified to improve the reliability and lengthen the life of the on-board buzzer.PBA 511893-005 includes:The new Piezo acoustic buzzer drive circuitry andPhoenix ROM BIOS PLUS Version: 1.10.32.L0 at U32 P/N 515850-001.Keyboard Controller Version: 1.00ņ #@ « .10 at U9 P/N 506425.Dņ gA C T€€˜lŲWĆ/­…oķY€ƒ‚‚‚‚€‚’PBA 511893-005 uses Schematic Number 514595.The new buzzer drive circuitry was retrofitted into the -002, -003 and -004 versions of this PBA via QAN #OR1732. Systems with ship dates of October 24, 1991 or later include the new circuitry.See Also:”M#@ ūA G#^€šM"€€ć?Śķ#€‰‚’€F€‚’’’PBA #511893-003, -004 and -005Problem Descriptions for PBA #511893-005˜NgA “B J#d€œM"€€ćr÷±€‰‚’€4€€‚’’’On-Board I/O Devices Serial / Parallel Ports, Keyboard, Mouse, Speaker$ūA ·B " €€€’G“B žB 17Āƒ^’’’’žB īH PBA Version 511893-006W·B UC = J€4€˜lŲWĆ/­…oķY€€‚’PBA Version 511893-006„GžB ŁC = J€Ž€˜rāUĒ9©żoįQ€‚‚‚‚’Effective June, 1992This revision included the following changes:9UC D 6 <€€”rāUĒ9©żo€‚’”[ŁC ¦E 9 @€·€PøJ”rāUĒ9©żo€‚’1) The System BIOS was upgraded to include a new drive table and to remove the on-board video controller option from SETUP. The new BIOS version 1.10 33.L0 also fixes the following problems: SETUP not working with console redirection, .memory roll in SETUP resetting serial ports to disabled, and memory tests being executed after a warm boot.SD łE 7 >€8€”rāUĒ9©żo€‚‚’PBA 511893-006 includes:ģ«¦E åF A P€W€˜rāUĒ9©żoįQ€ƒ‚ƒ‚ƒ‚‚’Phoenix ROM BIOS PLUS Version: 1.10.33.L0 at U32 P/N 469474-001.Keyboard Controller Version: 1.00.10 at U9 P/N 506425.PBA 511893-006 uses Schematic Number 514595.F łE +G : D€€˜lŲWĆ/­…oķY€‚’See Also:„=åF ÆG G#^€zŽĆ"€€ć„ˆ@€‰‚’€*€‚’’’BIOS V1.10 33.L0BIOS V1.10 33.L0 Technical Information…>+G 4H G#^€|ŽĆ"€€ć&õe=€‰‚’€(€‚’’’PBA #511893-006Problem Descriptions for PBA #511893-006}3ÆG ±H J#d€fŽĆ"€€ć> ‡€‰‚’€ €€‚’’’System BIOSPhoenix Technologies System BIOS=4H īH : D€€˜lŲWĆ/­…oķY€‚’M±H ;I 1šƒdˆ_’’’’;I ˆM V1.10 31.L0 BIOS Information īH WK | ʀA€˜rāUĒ9©żoįQ€€‚‚€‚‚ƒ€€ƒ‚ƒƒƒƒ‚ƒƒƒƒƒ‚‚€€ƒ€€‚ƒƒƒƒ‚ƒƒƒƒƒ‚‚€‚€‚‚’BIOS Version V1.10 31.L0 and Keyboard Controller V1.00 10Used on PBA: 511893-002BIOS PROM VERSION:V1.10 31.L0Effective April, 1991.Part NumberLocationRaw Device Type508780-001U32N27C210-200V10KEYBOARD CONTROLLER VERSION:V1.00 10Part NumberLocationRaw Device Type506425-001U9N8742AHGeneral Features:Initial production release of the System BIOS and Keyboard Controller.1ć;I ˆM N j€Ē€˜rāUĒ9©żoįQ€‚‚€‚€‚‚‚€‚€‚’Both devices are 44-pin PLCC packages.Additional Information:Systems with a ship date of October 24, 1991, were upgraded with the V1.10 32.L0 BIOS. The PBA number was not revised because all aspects of the ECO were not implemented. A QAN label was placed on the PBA as part of QAN #OR1732. If there is sticker with the QAN label "QAN #OR1732" on the PBA the system BIOS will have been upgraded to version V1.10 32.L0.See Also:Problem Descriptions for PBA #511893-002MWK ÕM 1ćį„€`’’’’ÕM QĄ V1.10 32.L0 BIOS InformationķxˆM ĀO u ø€ń€˜rāUĒ9©żoįQ€‚‚‚‚ƒ€€ƒ‚ƒƒƒƒ‚ƒƒƒƒƒ‚‚€€ƒ€€‚ƒƒƒƒ‚ƒƒƒƒƒ‚€‚‚€‚’BIOS Version V1.10 32.L0 and Keyboard Controller V1.00 10Used on PBA: 511893-003, 511893-004 and 511893-005BIOS PROM VERSION:V1.10 32.L0Effective October, 1991.Part NumberLocationRaw Device Type515850-001U32N27C210-200V10KEYBOARD CONTROLLER VERSION:V1.00 10Part NumberLocationRaw Device Type506425-001U9N8742AHFeature Enhancements:‹ ÕM Y k ¤€A€P«€Y˜rāUĒ9©żoįQ€€ĀO Y ˆM ƒ€€‚€€ƒ€€€€‚€€ƒ€€‚’oNew drive table that includes drive parameters for the 52/105 Quantum disk drives.oThe Keyboard option is now set to Not Installed when the ESC F5 sequence is used in the ROM Based SETUP program.oParallel Port option in the ROM Based SETUP utility have been updated:£SĀO ü† P n€§ €˜rāUĒ9©żoįQ€‚€‚€‚ƒ‚ƒ‚ƒ‚ƒ‚‚‚‚ƒ‚’Parallel Port Options:DisabledBase Address 378H:CompatibleBase Address 278H:CompatibleBase Address 378H:Bi-directionalBase Address 278H:Bi-directionalCompatible refers to AT compatible. Bi-directional refers to PS/2 compatible.The logical parallel port names (LPT1, LPT2) are assigned based on the number of parallel ports in the system and the I/O addresses (3BCH, 378H, 278H) used by each port. If a monochrome card containing a parallel port is installed in the system, its I/O address will be 3BCH and its logical name will be LPT1. The onboard parallel port will have the I/O address referenced in the Parallel Port entry in the ROM Based SETUP program and its logical name will be LPT2. Another situation is if another type of add-in board containing a configurable parallel port is installed in the system. Its I/O address options will be 378H or 278H. It is important to make sure the I/O address for the add-in board differs from the I/O address for the onboard parallel port. The port that is assigned I/O address 378H will have the logical name LPT1. The other parallel port (278H) will be LPT2. If there is no add-in board containing a parallel port installed in the system, the onboard parallel port will have the I/O address referenced in the parallel port entry in the ROM Based SETUP and its logical name will be LPT1.UY Q‡ ? N€,€˜rāUĒ9©żoįQ€‚€‚‚’Issues resolved:fķü† ·‰ y Ą€Ū€P«€Y˜rāUĒ9©żoįQ€€ƒ€€‚€€ƒ€€‚€ƒ€€€‚€€ƒ€€€€‚’oWhen CMOS default values are loaded after a fatal error, the Password retain its previous value.oLoading CMOS defaults via ESC-F5 sequence in the ROM Based SETUP does not affect the power up Password setting.oWhen the DOS "Format a:" command is executed and there is no diskette in the drive, the proper error message is returned.oWhen User Definable Drive Types are set to 2 and 3 in the BIOS Setup utility, a subsequent CNTRL-ALT-DEL will not hang the system.4µQ‡ ė‹  Ģ€k€P«€Y˜rāUĒ9©żoįQ€€ƒ€€‚€€ƒ€€‚€€ƒ€€€€‚€€ƒ€€€€‚’oA First Choice Communications serial port problem is fixed.oThe intermittent "Default Configuration In Use" message no longer appears.oSetting the ROM Based SETUP option "Setup Entry" to Pre-boot denies access to the ROM Based Setup utility after boot.oThe 82340 chip set Fast Reset function is now enabled and the Fast A20 support now works correctly (DOS 5.0 will load without any special configuration).šR·‰ …Œ H `€¤€P«€Y˜rāUĒ9©żoįQ€€ƒ€€‚’oCursor and page keys allows work when used in the ROM Based SETUP program.”Qė‹  C V€¢€˜rāUĒ9©żoįQ€‚€‚€‚‚’New Issues:The following issues were not present in the V1.10 31.L0 BIOS:ŖE…Œ Ə e ˜€‹€P«€Y˜rāUĒ9©żoįQ€€ƒ€€‚€€ƒ€€‚€€ƒ€€‚’oThe Model 300SX20 will execute the system's DRAM memory tests every time it is rebooted. The memory tests should not be executed when a warm boot (CNTRL-ALT-DEL) is performed.oConsole Redirection causes the system to hang when the ROM Based SETUP option is used from the serial port. Also, garbage characters are displayed when using the ROM Based SETUP program from the serial port (using Console Redirection).oSetting the Memory Roll option on page 4 of the ROM Based SETUP program will change the setting of the on-board serial ports on page 3 to disabled.‚@ QĄ B T€€€˜rāUĒ9©żoįQ€‚€‚Ə QĄ ˆM €‚’See Also:Problem Descriptions for PBA #511893-003 to -005MƏ žĄ 1dˆķa’’’’žĄ _Č V1.10 33.L0 BIOS InformationģgQĄ ŠĀ … Ų€Ļ€˜rāUĒ9©żoįQ€‚€‚€‚€‚€ƒ€€ƒ‚ƒƒƒƒƒ‚ƒƒƒƒƒƒ‚‚€€ƒ€€‚€ƒƒƒƒƒ‚ƒƒƒƒƒƒ‚€‚‚‚’BIOS Version V1.10 33.L0 and Keyboard Controller V1.00 10Used on PBA: 511893-006BIOS PROM VERSION:V1.10 33.L0Effective June/July, 1992.Part NumberLocationRaw Device Type469474-001U32N27C210-200V10KEYBOARD CONTROLLER VERSION:V1.00 10Part NumberLocationRaw Device Type506425-001U9N8742AHFeature Enhancements:­žĄ ØÄ q °€[€P«€Y˜rāUĒ9©żoįQ€€ƒ€€‚ƒ‚ƒ‚ƒ‚ƒ‚ƒ‚ƒ‚ƒ‚ƒ‚‚€€ƒ€€‚‚€‚€‚’oNew drive table that includes drive parameters:Type 4 -- Conner 85MBType 5 -- Conner 120MBType 9 -- Conner 210MBType 11 -- Maxtor 80MBType 12 -- Maxtor 120MBType 14 -- Maxtor 213MBType 16 -- Quantum 120MBType 19 -- Quantum 240MBoThe Onboard Video Controller option has been removed from the ROM Based SETUP program. This option never worked and was not used by many customers.Issues resolved:Œ!ŠĀ 4Ē k ¤€C€P«€Y˜rāUĒ9©żoįQ€ƒ‚‚€€ƒ€€‚€€ƒ€€‚€€ƒ€€‚’The following issues were resolved by the V1.10 33.L0 BIOS:oThe Model 300SX20 will not execute the system's DRAM memory tests every time it is rebooted.oConsole Redirection does not cause the system to hang when the ROM Based SETUP option is used from the serial port. Also, garbage characters are not displayed when using the ROM Based SETUP program from the serial port (using Console Redirection).oSetting the Memory Roll option on page 4 will not change the setting of the on-board serial ports on page 3 to disabled.ŸWØÄ ÓĒ H `€®€P«€Y˜rāUĒ9©żoįQ€€ƒ€€‚’oSystem will not hang after exiting SETUP when 16 MBytes of SIMM memory is used.ŒI4Ē _Č C V€’€˜rāUĒ9©żoįQ€‚€‚€‚‚’Known Issues:There are no known issues with the V1.10 33.L0 BIOS.IÓĒ ØČ 1ó ķ”b’’’’ØČ bDEC Certification Letter\7_Č É % €n€€‚‚‚’Intel 300SX20 DEC Pathworks CertificationOVERVIEW:„CØČ ˆÉ A#R€†„ €€€‚’€D€‚’’’CPU type/speed/cache/ROM Level:80386SX/20 /0 / Phoenix 1.10.31j)É ņÉ A#R€R„ €€€‚’€H€‚’’’PATHWORKS for DOS version tested:4.0e$ˆÉ WŹ A#R€H„ €€€‚’€2€‚’’’Certified / Qualified:Qualifiedh'ņÉ æŹ A#R€N„ €€€‚’€6€‚’’’Language variant tested:US English^WŹ Ė A#R€:„ €€€‚’€0€‚’’’Testing Lab Location:ALF?æŹ žĖ B#T€~„ €€€‚’€n€‚‚’’’Conventional memory after running NETSETUP key disk:518Kb5Ė ÓĖ ' €€€‚€‚’HARDWARE:VžĖ )Ģ A#R€*ˆ€€€‚’€ €‚’’’Total Memory:2MbXÓĖ Ģ A#R€.ˆ€€€‚’€ €‚’’’Conventional:640KbS)Ģ ŌĢ A#R€$ˆ€€€‚’€€‚’’’Extended:64KbUĢ )Ķ A#R€(ˆ€€€‚’€€‚’’’Expanded:1024Kbf%ŌĢ Ķ A#R€Jˆ€€€‚’€>€‚’’’EMS memory board make/model:Noneg&)Ķ öĶ A#R€Lˆ€€€‚’€@€‚’’’EMS memory board I/O address:Nonei(Ķ _Ī A#R€Pˆ€€€‚’€D€‚’’’EMS memory board frame address:Noneh'öĶ ĒĪ A#R€Nˆ€€€‚’€4€‚’’’Keyboard type/language:Native / UST_Ī Ļ A#R€&ˆ€€€‚’€€‚’’’Video type:VGAr1ĒĪ Ļ A#R€bˆ€€€‚’€6€‚’’’Network card make/model:DEC EtherWORKS TurboXĻ A#R€.ˆ€€€‚’€(€‚’’’Network card IRQ:5Ļ _Č b!Ļ nA#R€Bˆ€€€‚’€8€‚’’’Network card I/O address:300f% ŌA#R€Jˆ€€€‚’€>€‚’’’Network card memory address:C800m,nAA#R€Xˆ€€€‚’€(€‚’’’Mouse make/model:Microsoft Serial Mouseh'Ō©A#R€Nˆ€€€‚’€B€‚’’’Mouse port or COM port or IRQ:COM15AŽ' €€€‚€‚’SOFTWARE:q0©OA#R€`ˆŠ€€€‚’€6€‚’’’Vendor operating system:Microsoft DOS v4.01s2ŽĀA#R€dˆŠ€€€‚’€<€‚’’’SW EMS driver make/version:MS EMM386.SYS V4.0f%O(A#R€JˆŠ€€€‚’€>€‚’’’SW EMS driver frame address:D000s2Ā›A#R€dˆŠ€€€‚’€<€‚’’’SW XMS driver make/version:MS HIMEM.SYS v2.60>(A#R€|ˆŠ€€€‚’€F€‚’’’CONFIG.SYS memory / unique linesDEVICE=EMM386.SYS M4 1024H›bE X€€€‚€‚ƒ€‚€ƒ€€‚ƒ€‚€ƒ€‚’NOTES:oEMM386.SYS V4.0 does not support remote boot, VCPI, DWDOS386oQEMM386.SYS V5.11 supports remote boot, VCPI, DWDOS386oDNP fails to load into EMS during remote bootoDECnet commands, when shelled from MS-WINDOWS V3.0, are not supported.L®1 ՅĒc’’’’®p@Novell Certification LetterO,bż# €X€€‚’Intel 300SX20 Novell Certification Reporty;®v> L€v€’Ž«9ÅSįoż€‚€ ‚‚€‚’Novell Certification #S-552Certified Configuration:e$żŪA#R€H4€€€‚’€(€‚’’’Certificate Date:March 25, 1991Vv1A#R€*4€€€‚’€ €‚’’’CPU80386sx/20MHzr1Ū£A#R€b4€€€‚’€&€‚’’’Fixed Disk Type:Type 34 (80 MB) Quantum 80ATb!1A#R€B4€€€‚’€&€‚’’’Disk Controller:Embedded IDEs2£xA#R€d4€€€‚’€.€‚’’’Disk Driver (v2.1x):ISADISK.OBJ (FEB 1, 1990)t3ģA#R€f4€€€‚’€,€‚’’’Disk Driver (v3.x):ISADISK.DSK (June 11, 1990)[xG A#R€44€€€‚’€$€‚’’’Floppy Disk(s):1.44MBf%ģ­ A#R€J4€€€‚’€€‚’’’Bus Type:ISA (Four 16-bit slots)}<G * A#R€x4€€€‚’€€‚’’’ROM BIOS:Phoenix 80386 ROM BIOS Plus Version 1.10 31.LOl+­ – A#R€V4€€€‚’€6€‚’’’Main/CPU Board Revision:PBA 508351-001k**  A#R€T4€€€‚’€€‚’’’CPU Memory:Base 640 / Extended 7168c"– d A#R€D4€€€‚’€2€‚’’’Video Adapter/Monitor:VGA/VGA` Ä A#R€>4€€€‚’€&€‚’’’Vendor Software:MS-DOS 3.3ƒId G : D€’€’Ž«9ÅSįoż€‚€‚‚’TESTED and APPROVED NetWare Compatible with the following products:|;Ä Ć A#R€vG¼ €€€‚’€B€‚’’’Advanced NetWare (v2.15 rev.c)NetWare for SQL (v2.01b)ƒBG F A#R€„G¼ €€€‚’€6€‚’’’SFT NetWare (2.15 rev.c)NetWare SNA Gateway Token Ring (v1.1)t3Ć ŗ A#R€fG¼ €€€‚’€*€‚’’’NetWare 386 (v3.1)NetWare for Macintosh (v2.0)y8F 3A#R€pG¼ €€€‚’€:€‚’’’ELS NetWare Level I (2.12)ELS NetWare (v2.15 rev c)1įŗ p@P n€Ć€’Ž«9ÅSįoż€‚€‚‚€‚‚‚‚‚€‚€‚ƒ‚‚ƒ‚’Test Results:Passed dedicated server tests.Passed non-dedicated server tests.Passed bridge tests.Passed workstation tests.Notes:1) Due to an interrupt conflict with IRQ 12 the mouse port must be disabled via the BIOS setup proram in order for the Novell Disk Coprocessor Board (DCB) channel #2 to function properly.2) Novell certification applies only to the pro3p@bduct configuration listed above and is not associated with certification from other test agencies.T#3Ä@1Ė?Ē€d’’’’Ä@+@300SX20 Software Compatibility ListN&p@A( €L€„±ń€‚’300SX20 Software Compatibility List1Ä@CA. ,€€Š±AaY€‚’Ć+AB˜#VÓÕł…€€’&€€„A€€‚’&€€„A€€‚’&€(€„A€€‚’&€>€„A€€‚’’’CLASSVENDORPACKAGEVERSION € CA†Bw#¾€ÓÕł… €€„A€‚’€€„A‚’€ €„A‚’€€„A‚’’’«1B1Cz#ĀbÓÕł…&€€„A€€‚’€€„A‚’€<€„A‚’€V€„A‚’’’BenchmarksDataBase GroupPower Meter1.5 “†BÄCw#¾€8ÓÕł… €€„A€‚’€€„A‚’€€„A‚’€*€„A‚’’’DiagsoftQAPlus4.21 ¢+1CfDw#¾€VÓÕł… €€„A€‚’€€„A‚’€ €„A‚’€H€„A‚’’’PC MagazinePC Labs Benchmarks5.00 € ÄCęDw#¾€ÓÕł… €€„A€‚’€€„A‚’€ €„A‚’€€„A‚’’’¤*fDŠEz#ĀTÓÕł…&€€„A€€‚’€ €„A‚’€4€„A‚’€F€„A‚’’’CAD\GraphicsAutodeskAutoCAD10.0 “ęDFw#¾€8ÓÕł… €€„A€‚’€€„A‚’€€„A‚’€,€„A‚’’’AutodeskAutoCAD11.0 )ŠE½Fw#¾€RÓÕł… €€„A€‚’€€„A‚’€€„A‚’€>€„A‚’’’AutodeskAutoCAD for OS/210.0 C14 )F]Gw#¾€RÓÕł… €€„A€‚’€€„A‚’€*€„A‚’€F€„A‚’’’Generic SoftwareGeneric CADD5.0 Ø1½FHw#¾€bÓÕł… €€„A€‚’€€„A‚’€0€„A‚’€T€„A‚’’’Software PublishingHarvard Graphics2.31 œ%]G”Hw#¾€JÓÕł… €€„A€‚’€€„A‚’€.€„A‚’€@€„A‚’’’RIX Softworks Inc.Colorix1.3&H>Iw#¾€LÓÕł… €€„A€‚’€€„A‚’€&€„A‚’€B€„A‚’’’VersaCad Corp.VersaCad 2-D5.4”*”HßIw#¾€TÓÕł… €€„A€‚’€€„A‚’€"€„A‚’€J€„A‚’’’Z-Soft Corp.PC Paintbrush IV +1.0€ >I_Jw#¾€ÓÕł… €€„A€‚’€€„A‚’€ €„A‚’€€„A‚’’’¦,ßIKz#ĀXÓÕł…&€€„A€€‚’€"€„A‚’€,€„A‚’€J€„A‚’’’CommunicationDCACrosstalk XVI3.7b š#_JŸKw#¾€FÓÕł… €€„A€‚’€€„A‚’€€„A‚’€8€„A‚’’’D.C.HayesSmartcom III1.1a š#K9Lw#¾€FÓÕł… €€„A€‚’€€„A‚’€€„A‚’€8€„A‚’’’DatastormProcomm Plus1.1B ˜!ŸKŃLw#¾€BÓÕł… €€„A€‚’€€„A‚’€€„A‚’€6€„A‚’’’DCACrosstalk Mark IV2.0 ¢+9LsMw#¾€VÓÕł… €€„A€‚’€€„A‚’€$€„A‚’€H€„A‚’’’Meridian TechCarbon Copy Plus5.2.2©2ŃLNw#¾€dÓÕł… €€„A€‚’€€„A‚’€0€„A‚’€V€„A‚’’’Software Pub. Corp.PFS: First Choice3.02 € sMœNw#¾€ÓÕł… €€„A€‚’€€„A‚’€ €„A‚’€€„A‚’’’„+NAOz#ĀVÓÕł…&€€„A€€‚’€€„A‚’€2€„A‚’€J€„A‚’’’DataBaseAshton-TateDBASE III+1.1 –œN×Ow#¾€>ÓÕł… €€„A€‚’€€„A‚’€ €„A‚’€4€„A‚’’’Ashton-TateDBASE IV1.1œ%AO€w#¾€JÓÕł…×O€p@ €€„A€‚’€€„A‚’€ €„A‚’€>€„A‚’’’Ashton-TateFramework III1.1 –×Ow#¾€>ÓÕł… €€„A€‚’€€„A‚’€€„A‚’€2€„A‚’’’BorlandParadox 3863.5 œ%€±w#¾€JÓÕł… €€„A€‚’€€„A‚’€€„A‚’€>€„A‚’’’Lotus Dev.Freelance Plus3.01&N‚w#¾€LÓÕł… €€„A€‚’€€„A‚’€"€„A‚’€B€„A‚’’’Microim Inc.R:BASE for DOS3.1ž'±ģ‚w#¾€NÓÕł… €€„A€‚’€€„A‚’€"€„A‚’€D€„A‚’’’Microim Inc.R:BASE for OS/22.1˜!N‚„ƒw#¾€BÓÕł… €€„A€‚’€€„A‚’€$€„A‚’€8€„A‚’’’Nantucket S/WClipper 5.0›$ģ‚„w#¾€HÓÕł… €€„A€‚’€€„A‚’€&€„A‚’€>€„A‚’’’Symantec Corp.Q & A /3863.0—„ƒ¶„z#Ā:ÓÕł… €€„A€‚’ €€„A€‚’€€„A‚’€,€„A‚’’’SCOFoxbase Pro2.1.2€ „6…w#¾€ÓÕł… €€„A€‚’€€„A‚’€ €„A‚’€€„A‚’’’¤*¶„Ś…z#ĀTÓÕł… €€„A€‚’ €€„A€‚’€0€„A‚’€J€„A‚’’’DevelopmentBorlandTurbo BASIC1.1’6…l†w#¾€6ÓÕł… €€„A€‚’€€„A‚’€€„A‚’€*€„A‚’’’BorlandTurbo C2.01— Ś…‡w#¾€@ÓÕł… €€„A€‚’€€„A‚’€€„A‚’€4€„A‚’’’BorlandTurbo Pascal5.5 œ%l†Ÿ‡w#¾€JÓÕł… €€„A€‚’€€„A‚’€€„A‚’€@€„A‚’’’ MicrosoftMacro Assembler5.1˜!‡7ˆw#¾€BÓÕł… €€„A€‚’€€„A‚’€€„A‚’€6€„A‚’’’MicrosoftMicrosoft C6.01— Ÿ‡Īˆw#¾€@ÓÕł… €€„A€‚’€€„A‚’€€„A‚’€6€„A‚’’’MicrosoftQuick BASIC4.5€ 7ˆN‰w#¾€ÓÕł… €€„A€‚’€€„A‚’€ €„A‚’€€„A‚’’’¦,Īˆō‰z#ĀXÓÕł… €€„A€‚’ €€„A€‚’€(€„A‚’€L€„A‚’’’GamesMicrosoftFlight Simulator4.0 ’ N‰†Šˆ#ą€ÓÕł…€€„A’ €€ „A€‚’€€ „A‚’€ € „A‚’€€ „A‚’’’¬!ō‰2‹‹#ę€BÓÕł…€€ „A’ €€„A€‚’ €€„A€‚’€$€„A‚’€8€„A‚’’’Network3COM3 Share 1.5’†Šċw#¾€6ÓÕł… €€„A€‚’€€„A‚’€€„A‚’€,€„A‚’’’ IntelPCLink II3.0›$2‹_Œw#¾€HÓÕł… €€„A€‚’€€„A‚’€€„A‚’€:€„A‚’’’NovellAdvanced Netware2.15C”ċóŒw#¾€:ÓÕł… €€„A€‚’€€„A‚’€€„A‚’€0€„A‚’’’NovellNetware 3863.0™"_ŒŒw#¾€DÓÕł… €€„A€‚’€€„A‚’€€„A‚’€:€„A‚’’’IBM PC Network Program1.3€ óŒ Žw#¾€ÓÕł… €€„A€‚’€€„A‚’€ €„A‚’€€„A‚’’’Æ5Œ»Žz#ĀjÓÕł…&€€„A€€‚’€$€„A‚’€:€„A‚’€`€„A‚’’’Operating Env.MicrosoftMicrosoft Windows3.0™" ŽTw#¾€DÓÕł… €€„A€‚’€€„A‚’€€„A‚’€,€„A‚’’’MicrosoftMS-DOS3.3, 4.01 ”»Ž Ąw#¾€:ÓÕł… €€„A€‚’€€„A‚’€€„A‚’€.€„A‚’’’MicrosoftMS-OS/21.21T Ąp@™"T„Ąw#¾€DÓÕł… €€„A€‚’€€„A‚’€€„A‚’€:€„A‚’’’Qualitas386 to the MAX5.1›$ Ą@Įw#¾€HÓÕł… €€„A€‚’€€„A‚’€ €„A‚’€<€„A‚’’’QuarterdeckDesqview 3862.31–„ĄÖĮw#¾€>ÓÕł… €€„A€‚’€€„A‚’€ €„A‚’€4€„A‚’’’QuarterdeckQEMM 3865.1”@ĮjĀw#¾€:ÓÕł… €€„A€‚’€€„A‚’€€„A‚’€*€„A‚’’’SCOXenix 386GT2.3.2C’ÖĮüĀw#¾€6ÓÕł… €€„A€‚’€€„A‚’€€„A‚’€,€„A‚’’’SCOLyrix (Unix)6.0€ jĀ|Ćw#¾€ÓÕł… €€„A€‚’€€„A‚’€ €„A‚’€€„A‚’’’Ŗ0üĀ&Äz#Ā`ÓÕł…&€€„A€€‚’€"€„A‚’€<€„A‚’€V€„A‚’’’Spread SheetsAshton-TateApplause II1.1‘|Ć·Äw#¾€4ÓÕł… €€„A€‚’€€„A‚’€€„A‚’€*€„A‚’’’BorlandQuattro2.0Ÿ(&ÄVÅw#¾€PÓÕł… €€„A€‚’€€„A‚’€(€„A‚’€B€„A‚’’’Computer Assoc.Supercalc 55.0c “·ÄéÅw#¾€8ÓÕł… €€„A€‚’€€„A‚’€€„A‚’€"€„A‚’’’Lotus1-2-32.2, 3.1 &VņĘw#¾€LÓÕł… €€„A€‚’€€„A‚’€€„A‚’€@€„A‚’’’Lotus1-2-3 3.5" Protected2.01•éÅĒw#¾€<ÓÕł… €€„A€‚’€€„A‚’€€„A‚’€2€„A‚’’’Lotus1-2-3 /G OS/21.0†ĘŖĒw#¾€0ÓÕł… €€„A€‚’€€„A‚’€€„A‚’€$€„A‚’’’LotusAgenda2.0 Ē:Čw#¾€2ÓÕł… €€„A€‚’€€„A‚’€€„A‚’€(€„A‚’’’LotusSymphony2.2’ŖĒĢČw#¾€6ÓÕł… €€„A€‚’€€„A‚’€€„A‚’€*€„A‚’’’MicrosoftExcel2.1d€ :ČLÉw#¾€ÓÕł… €€„A€‚’€€„A‚’€ €„A‚’€€„A‚’’’„+ĢČńÉz#ĀVÓÕł…&€€„A€€‚’€€„A‚’€:€„A‚’€J€„A‚’’’UtilitiesAskSam SystemsAskSam4.2bš#LÉ‹Źw#¾€FÓÕł… €€„A€‚’€€„A‚’€€„A‚’€:€„A‚’’’BorlandSidekick for PM2.0 #ńÉ(Ėz#ĀFÓÕł… €€„A€‚’ €€„A€‚’€€„A‚’€8€„A‚’’’BorlandSidekick Plus1.01c£,‹ŹĖĖw#¾€XÓÕł… €€„A€‚’€€„A‚’€,€„A‚’€N€„A‚’’’Central Point S/WPC tools Deluxe6.0˜!(ĖcĢw#¾€BÓÕł… €€„A€‚’€€„A‚’€"€„A‚’€8€„A‚’’’DAC SoftwareLightning5.5”*ĖĖĶw#¾€TÓÕł… €€„A€‚’€€„A‚’€*€„A‚’€J€„A‚’’’Fifth GenerationFastback Plus 2.1¢+cĢ¦Ķw#¾€VÓÕł… €€„A€‚’€€„A‚’€*€„A‚’€J€„A‚’’’Fifth GenerationMace Utilities1990œ%ĶBĪw#¾€JÓÕł… €€„A€‚’€€„A‚’€,€„A‚’€<€„A‚’’’ Living VideotextReady!1.00eŸ(¦ĶįĪw#¾€PÓÕł… €€„A€‚’€€„A‚’€*€„A‚’€@€„A‚’’’Living VideotextThinktank2.41NP˜!BĪyĻw#¾€BÓÕł… €€„A€‚’€€„A‚’€€„A‚’€4€„A‚’’’MathworksMATLAB-3863.25 ™"įĪw#¾€DÓÕł… €€„A€‚’€€„A‚’€€„A‚’€:€„A‚’’’MicrosoftMSyĻp@-SMARTDRIVE2.1Ŗ3yĻČw#¾€fÓÕł… €€„A€‚’€€„A‚’€.€„A‚’€\€„A‚’’’Peter Norton Comp.Norton Utilities Adv.5.0„.mw#¾€\ÓÕł… €€„A€‚’€€„A‚’€.€„A‚’€P€„A‚’’’Simon and SchusterTyping Tutor IV1.0 &Č w#¾€LÓÕł… €€„A€‚’€€„A‚’€$€„A‚’€@€„A‚’’’Rosesoft Inc.Prokey Plus 1989„.mÆw#¾€\ÓÕł… €€„A€‚’€€„A‚’€0€„A‚’€P€„A‚’’’Softlogic SolutionsDisk Optimizer4.05š# Iw#¾€FÓÕł… €€„A€‚’€€„A‚’€&€„A‚’€<€„A‚’’’Symantec Corp.Grandview2.0¢+Æėw#¾€VÓÕł… €€„A€‚’€€„A‚’€.€„A‚’€H€„A‚’’’Traveling SoftwareLaplink III3.00aŸ(IŠw#¾€PÓÕł… €€„A€‚’€€„A‚’€$€„A‚’€D€„A‚’’’Xtree CompanyXtree Pro Gold1.43€ ė w#¾€ÓÕł… €€„A€‚’€€„A‚’€ €„A‚’€€„A‚’’’Ŗ0Š“z#Ā`ÓÕł…&€€„A€€‚’€&€„A‚’€>€„A‚’€T€„A‚’’’Word ProcessingAldus CorpPagemaker3.01‘ Ew#¾€4ÓÕł… €€„A€‚’€€„A‚’€€„A‚’€0€„A‚’’’IBMDisplaywrite V›$“ąw#¾€HÓÕł… €€„A€‚’€€„A‚’€€„A‚’€D€„A‚’’’IBM Displaywrite 5/2 Mod 03Eow#¾€0ÓÕł… €€„A€‚’€€„A‚’€€„A‚’€&€„A‚’’’IBMMultimate4.0Žążw#¾€.ÓÕł… €€„A€‚’€€„A‚’€€„A‚’€"€„A‚’’’IntelAedit2.13š#o—w#¾€FÓÕł… €€„A€‚’€€„A‚’€&€„A‚’€:€„A‚’’’Micropro Intl.Wordstar6.0bš#ż1 w#¾€FÓÕł… €€„A€‚’€€„A‚’€€„A‚’€<€„A‚’’’MicrosoftMicrosoft Word5.5œ%—Ķ w#¾€JÓÕł… €€„A€‚’€€„A‚’€€„A‚’€>€„A‚’’’MicrosoftMicrosoft Works2.0 §01 t w#¾€`ÓÕł… €€„A€‚’€€„A‚’€0€„A‚’€V€„A‚’’’Software Pub. Corp.Professional File2.0§0Ķ  w#¾€`ÓÕł… €€„A€‚’€€„A‚’€.€„A‚’€V€„A‚’’’Software Pub. CorpProfessional Write2.2&t ø w#¾€LÓÕł… €€„A€‚’€€„A‚’€&€„A‚’€@€„A‚’’’Symantec Corp.Q & A Write1.02™" Q w#¾€DÓÕł… €€„A€‚’€€„A‚’€ €„A‚’€:€„A‚’’’WordPerfectWordPerfect5.1 )ø ń w#¾€RÓÕł… €€„A€‚’€€„A‚’€ €„A‚’€H€„A‚’’’Xerox Corp.Ventura Pub. Prof.3.0œ%Q  w#¾€JÓÕł… €€„A€‚’€€„A‚’€$€„A‚’€>€„A‚’’’Xyquest Corp.Xywrite III3.51V!ń ć 5 :€B€Š±AaY€‚€€‚’Known Compatibility Issues:2ņ @ N€å€°”rāUĒ9©żo€‚€‚€‚’1) XTree Gold and floppy format.XTree Gold V1.43 cannot format low density 3.5" diskettes using the ALT-F2 key sequence. This is a XTree problem and is fixed in XTree V2.0.2) 386MAX hung when a CTRL-ALT-INS key sequence was invoked. Ūć +@/ ,€·€Š±AaY€‚’This only happened when the nohigh option was omitted. 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386SX 381B1 387SX 381B1 CPU 381B1 !Numeric Co-Processor 381B1 Math Co-Processor 381B1 Processor -- 386SX 381B1 Co- Processor 381B1 82385SX 3878B Cache 3878B Memory 3878B SRAM 3878B Snooping 3878B PC Utilities 3878B 82343 404A9 Memory 404A9 DRAM 404A9 SIMM 404A9 ECC Memory Checking 404A9 Parity 404A9 Fast Page Mode 404A9 Error Checking 404A9 Port 79H 404A9 Wait States 404A9 Remaping 404A9 Extended Memory 404A9 82344 40A32 CMOS RAM 40A32 Memory 40A32 RTC 40A32 Real Time Clock 40A32 System Timer 40A32 Battery 40A32 Shelf Life 40A32 $Battery-Backed CMOS RAM 40A32 RAM 40A32 J27 40A32 82343 480EB System Controller 480EB LIM 4.0 Spec 480EB EMS 480EB NPX Reset 480EB Shadow RAM 480EB EMI/RFI Reductions 480EB RAM Refresh 480EB Fast A20 480EB Fast CPU Reset 480EB Expanded Memory 480EB Fast A20 485D/ & ;)Lzšh9 .ƒÄ Šu’’’g)8’’300SX20 Technical Product Summary - Main Menu300SX20 System Product CodesM300SX20 System Feature Menus‚Installation and Configuration Menuī†System Baseboard JumpersĀProduct 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grounded Problem.ŠDeTurbo Mode Runs a Little Fast Issue.`Printer Port Interrupt is not Disabled in Polled Mode Issue.`Key Click Volume Issue.tPBA Version 511893-003, -004 and -005 Problem Descriptions MenuŪ‚AT&T UNIX V3.2 Release 2 Compatibility ProblemH‡Memory Roll Disables Serial Ports -- PBA -003.“‰Can not set On-Board Video Controller to Secondary -- PBA -003ŪPOST Memory Test Execute after a Warm Boot.³PCPaint V2.0 / Logitech Mouse Compatibility Issue.Y DeTurbo Mode Runs a Little Fast Issue.€VGA Pass Through does not support Bi-Directional Dot Clock Problem.ˆVGA Pass Through connector pin 26 is not grounded Problem.ߋPrinter Port Interrupt is not Disabled in Polled Mode Issue."SETUP can not be used when Console Redirection is Enabled.‘Key Click Volume Issue.„PBA Version 511893-006 Problem Descriptions Menu€AT&T UNIX V3.2 Release 2 Compatibility Problemm„DeTurbo Mode Runs a Little Fast Issue.‡VGA Pass Through does not support Bi-Directional Dot Clock Problem.lVGA Pass Through connector pin 26 is not grounded Problem.CPrinter Port Interrupt is not Disabled in Polled Mode Issue.BKey Click Volume Issue.€Known Mechanical IssuesäŠKnown Issues with Intel Supplied SoftwareĀPre-Production PBA Versions< PBA Version 511893-002€PBA Version 511893-003c„82077AA-1 Featuresr†Video RAM DAC Improvementsø‡82340 B-Step Devices¢PBA Version 511893-004ĀPBA Version 511893-005žPBA Version 511893-006į„V1.10 31.L0 BIOS InformationdˆV1.10 32.L0 BIOS Information€V1.10 33.L0 BIOS InformationՅDEC Certification Letter”Novell Certification Letter’vę’v䚬4£’’€300SX20 Software Compatibility List€300SX20 Hardware Compatibility ListĶuse Compatibility Issue.¦Orchid Prodesigner / Mouse Compatibility Issue.œWrong Warning Message Displayed with DOS Format Command Problem.® VGA Pass Through does not support Bi-Directional Dot Clock Problem.)†VGA Pass Through connector pin 26 is not grounded Problem.ŠDeTurbo Mode Runs a Little Fast Issue.`Printer Port Interrupt is not Disabled in Polled Mode Issue.`Key Click Volume Issue.tPBA Version 511893-003, -004 and -005 Problem Descriptions MenuŪ‚AT&T UNIX V3.2 Release 2 Compatibility ProblemH‡Memory Roll Disables Serial Ports -- PBA -003.“‰Can not set On-Board Video Controller to Secondary -- PBA -003ŪPOST Memory Test Execute after a Warm Boot.³PCPaint V2.0 / Logitech Mouse Compatibility Issue.Y DeTurbo Mode Runs a Little Fast Issue.€VGA Pass Through does not support Bi-Directional Dot Clock Problem.ˆVGA Pass Through connector pin 26 is not grounded Problem.ߋPrinter Port Interrupt is not Disabled in Polled Mode Issue."SETUP can not be used when Console Redirection is Enabled.‘Key Click Volume Issue.„PBA Version 511893-006 Problem Descriptions Menu€AT&T UNIX V3.2 Release 2 Compatibility Problemm„DeTurbo Mode Runs a Little Fast Issue.‡VGA Pass Through does not support Bi-Directional Dot Clock Problem.lVGA Pass Through connector pin 26 is not grounded Problem.CPrinter Port Interrupt is not Disabled in Polled Mode Issue.BKey Click Volume Issue.€Known Mechanical IssuesäŠKnown Issues with Intel Supplied SoftwareĀPre-Production PBA Versions< PBA Version 511893-002€PBA Version 511893-003c„82077AA-1 Featuresr†Video RAM DAC Improvementsø‡82340 B-Step Devices¢PBA Version 511893-004ĀPBA Version 511893-005žPBA Version 511893-006į„V1.10 31.L0 BIOS InformationdˆV1.10 32.L0 BIOS Information€V1.10 33.L0 BIOS InformationՅDEC Certification Letter”Novell Certification Letter’vę’v䚬4īšˆ€.L0 158748 6Memory Roll Disables Serial Ports Problem 158748 )BIOS Problems -- V1.10 31.L0 1589B4 )BIOS Problems -- V1.10 32.L0 1589B4 .Secondary Option in SETUP Problem 1589B4 %SETUP Problems -- V31.L0 1589B4 %SETUP Problems -- V32.L0 1589B4 )BIOS Problems -- V1.10 32.L0 1602DB @POST Memory Tests Execute after a Warm Boot Problem 1602DB ;Memory Tests Execute after a Warm Boot Problem 1602DB >PCPaint V2.0 / Logitech Mouse Compatibility Issue 1604B3 "Logitech Mouse Issues 1604B3 $DeTurbo Runs Fast Issue 160959 %VGA Pass Though Problems 168000 %VGA Pass Though Problems 168808 DVGA Pass Through Connector Pin 26 not Grounded Problem. 168808 EPrinter Port Interrupt not Disabled in Polled Mode Issue 168BDF IRQ5 168BDF IRQ7 168BDF CSETUP can not be used with Console Redirection Problem 170122 %SETUP Problems -- V32.L0 170122 )BIOS Problems -- V1.10 32.L0 170122 0Keyboard Key Click Low Volume Issue 170491 #PBA Version 511893-006 1708A5 511893-006 1708A5 *AT&T UNIX Compatibility Issue 178000 $DeTurbo Runs Fast Issue 17846D %VGA Pass Though Problems 178705 %VGA Pass Though Problems 18016C DVGA Pass Through Connector Pin 26 not Grounded Problem. 18016C EPrinter Port Interrupt not Disabled in Polled Mode Issue 180543 IRQ5 180543 IRQ7 180543 0Keyboard Key Click Low Volume Issue 180842 Mechanical Issues 188000 Floppy Carrier 188000 Software Issues 188AE4 ,Video Utilities -- Known Issues 188AE4 "Pre-Production Boards 1903C2 508351 1903C2 511893-001 1903C2 /PBA Versions 508351 and 511893-001 1903C2 511893-002 19093C #PBA Version 511893-002 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