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*AMD . . . . . . . [no datasheets, some info]...
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**440 series:
***440FX (Natoma)       05/06/96...
***440LX (Balboa)       08/27/97...
***440BX (Seattle)      c:Apr'98...
***440DX (?)            c:?...
***440EX (?)            c:Apr'98...
***440GX (Marlinespike) 06/29/98...
***440ZX & 440ZX-66 (?) 01/04/99
Chips:         
[82443ZX] (PAC) [82371EB] (PIIX4E)
CPUs:          Single P-II/Celeron
DRAM Types:    EDO SDRAM
Mem Rows:      4
DRAM Density:  16Mbit 64Mbit
Max Mem:       256MB
ECC/Parity:    No
AGP speed:     1x 2x
Bus Speed:     66 100 133*1
PCI Clock/Bus: 1/2 1/3 1/4*1 PCI 2.1

440ZX-66 is the same but only has  bus speed of 66 MHz and PCI divisor
or 1/2.

>*1 Exists  but unofficially. There is  no 1/2 divider  for AGP, 
    making AGP unstable in a 133MHz bus system. In this config. the 
    system is overclocked.



***440ZX-M (?)          05/17/99...
***440MX (Banister)     05/17/99...
**450NX  (?)            06/29/98:...
**?????  (Profusion)    c:99...
**800 series...
*Headland/G2...
*HMC (Hulon Microelectronics)...
*Logicstar...
**SL9010  System Controller (80286/80386SX/DX, 16/20/25MHz)     <oct88
***Info:...
***Versions:...
***Features:...
**SL9020  Data Controller                                       <oct88...
**SL9025  Address Controller                                    <oct88...
**SL9090  Universal PC/AT Clock Chip                            <oct88...
**SL9250  Page Mode Memory Controller (16/20MHz 8MB Max)        <oct88...
**SL9350  Page Mode Memory Controller (16/20/25MHz 16MB Max)    <oct88...
**Other:...
*Motorola...
*OPTi...
*PC CHIPS/Amptron/Atrend/ECS/Elpina/etc...
*SIS...
*Symphony...
*TI (Texas Instruments)...
*UMC...
*Unresearched:...
*VIA...
*VLSI...
*Western Digital...
**WD7700/LP     System Chip Set for 80286 or 80386SX (Cache) <11/25/91
***Info:...
***Configurations:...
***Features:...
**WD7855        System controller for 80386SX                <09/25/92...
**WD7900/LP/LV  System Chip Set for 80286 or 80386SX (Cache) <11/25/91...
**WD8110        System controller for 80386DX/486            <11/30/93...
**
**Support Chips:
**WD76C20x   Floppy, RTC, IDE and Support Logic Device       <11/25/91...
**WD76C30x   Perip. Ctrl, Interrupt Multiplex, and Clock Gen <11/18/91
***Notes:...
***Info:...
***Versions:...
***Features:...
**WD7615     Desktop Buffer Manager                          <04/15/92...
**WD7625     Desktop Buffer Manager                          <10/01/92...
**WD8120LV   Super I/O [no datasheet]                                ?
**Other Chips:...
*Winbond...
*ZyMOS...
*General Sources:...