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**A note on VESA support of 486 chipsets.
Many chipsets state  that they support VESA local  bus.  In some cases
these actually  implement VLB somewhat  like PCI, where it  is entirly
decoupled from the CPU bus. Chipsets  that do not state they work with
VLB,  may  be found  on  motherboards  that  contain VLB  slots.   VLB
is  *basically*  The 486  CPU  pinout in  a  slot  form. Unless  these
m/boards contain  some additional  chips, there VLB  implementation is
directly coupled to the CPU.

**Datasheets:...
*_IBM...
*ACC Micro...
*ALD...
*ALi...
*AMD . . . . . . . [no datasheets, some info]...
*Chips & Technologies...
*Contaq  . . . . . [no datasheets, some info]...
*Efar Microsystems [no datasheets, some info]...
*ETEQ...
**??????     "Cougar/Bobcat" 386DX/486DX chipset [no datasheet] cNov91
***Notes:...
***Configurations:...
**??????     "Bengal"  386DX/486 (WriteBack)     [no datasheet] cNov91...
**ET2000     386/486 WB Chipset                                      ?...
**ET6000     "Cheetah" 486DX/SX Non-Cache System                <Apr92
***Info:...
***Configurations:...
***Features:
o   100% IBM PC/AT Compatible 1-Chip AT Solution
o   Designed to work at 16, 20, 25, 33 and 50MHz on a 4868X/DX based
    system
o   Fast Burst Mode Memory Manager - Burst Read and 0WS Write
o   One blocks of non-cacheable memory regions
o   Up to 64MB DRAM support with Page Mode
o   Mixing DRAM configurations - 256K, 1M and 4M devices
o   Single ROM BIOS
o   Shadow RAM option
o   Software Programmable DRAM Wait States
o   Fast Reset and Gate A20 to Optimize OS/2
o   Asynchronous AT Bus Clock Generation
o   Support Intel 80487SX and Weitek 4167 Coprocessor without external
    PALs
o   Concurrent Refresh and AT Refresh Option
o   Hardware and Software Turbo Clock Switching
o   Local Bus support
o   Less than 10 components plus memory to implement an unique 486
    system
o   1.0 Micron Low Power, High Speed CMOS Technology
o   160 Pin PQFP package

**ET9000     "Jaguar" 486 Write Back Cache AT Single Chip       <Jun92...
**ET9800/391 "Firefox" 386SX Write Back chipset [no datasheet]       ?...
**82C390SX   "Panda" S.C. 386SX Direct Mapped Cache [no d.sheet]cFeb92...
**66x8       VIA clones [no datasheet]                               ?...
*Faraday...
*Forex . . . . . . [List only, no datasheets found]...
*Intel...
**82395SX     Smart Cache                                     12/17/90
***Notes:...
**82396SX     Smart Cache                                     12/17/90...
**82485       Turbo Cache (and 485Turbocache)                      c90...
**82489DX       Advanced Programmable Interrupt Controller    10/12/92...
**82495DX/490DX DX CPU-Cache Chip Set                           <Sep91...
**82495XP/490XP Cache Controller / Cache RAM (for i860)       06/05/91...
**82496/491     Cache Controller / Cache RAM (for P5 Pentium) 03/22/93...
**82497/492   Cache Controller / Cache RAM (for P54 Pentium)    <Nov94...
**82498/493   Cache Controller / Cache RAM (for P54 Pentium)    <Nov94...
**
**Later chipsets (basic spec):
**440 series:...
**450NX  (?)            06/29/98:...
**?????  (Profusion)    c:99...
**800 series...
*Headland/G2...
*HMC (Hulon Microelectronics)...
*Logicstar...
*Motorola...
*OPTi...
*PC CHIPS/Amptron/Atrend/ECS/Elpina/etc...
*SIS...
*Symphony...
*TI (Texas Instruments)...
*UMC...
*Unresearched:...
*VIA...
*VLSI...
*Western Digital...
*Winbond...
*ZyMOS...
*General Sources:...