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*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:
"ETEQ  Microsystems Inc,  headquartered in  Milpitas,  California, has
developed the  Cougar II  and Bengal chip  sets to support  Intel Corp
iAPX-86 clock  speeds above 50MHz: a hardware  turbo switching feature
has been incorporated into the  Cougar and Bengal 80386 and 80486 chip
sets, and  this enables  users to mix  the type  and the order  of the
DRAMs  in the  system;  also,  they support  a  Weitek Corp  3167/4167
co-processor   without   any   external  programmable   array   logic;
engineering samples of the 50MHz  chip sets are shipping from ETEQ and
production volumes  will begin in the  first quarter of  next year; no
prices. " - 21st November 1991
http://www.cbronline.com/news/eteq_develops_the_cougar_ii_and_bengal_chip_sets/

Since the Bobcat uses some of the same parts it is assumed to be just
a different variation.
***Configurations:...
**??????     "Bengal"  386DX/486 (WriteBack)     [no datasheet] cNov91...
**ET2000     386/486 WB Chipset                                      ?...
**ET6000     "Cheetah" 486DX/SX Non-Cache System                <Apr92...
**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...
**?????  (Profusion)    c:99
Chips:         
Memory Access Controller (MAC)  
Data Interface Buffer (DIB)
CPUs:          8x P-III Xeon Oct
DRAM Types:    SDRAM PC100 2-way Interleave dual channel
Max Mem:       32GB
ECC/Parity:    ECC
AGP speed:     N/A
Bus Speed:     100
PCI Clock/Bus: 1/3 PCI-66/64



**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...
*Winbond...
*ZyMOS...
*General Sources:...