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*Chips & Technologies...
*Contaq  . . . . . [no datasheets, some info]...
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**?????  (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...
**HT22          386SX/286 Single Chip (25 MHz)                 c:Sep91
***Info:...
***Configurations:...
***Features:
o   Single Chip 803868X/286 PC/AT Compatible Solution for CPU Clock 
    Speeds to 2SMHz
o   SX Mode or 286 Mode
o   Supports up to 20 MB DRAM using 4M, 1M or 256K Devices in by 1 
    or 4 configuration
o   Page Mode and 2-Way Interleaving
o   LIM EMS 4.0 Support in Hardware using 2 Sets of 32 EMS Registers
o   8-Bit or 16-Bit BIOS Support
o   High Performance DRAM Multiplexed Interleave Mode
o   Asynchronous AT Bus Clock
o   Supports up to 12 MHz Backplane Operation
o   Programmable DRAM Timing
o   Port 92 Alternate GATEA20 and Hot Reset
o   Shadow RAM support over entire 640K to 1M range in 16K increments
o   BIOS Shadow support in 64K increments
o   Built-in Sleep Mode
o   Three-state control pins for board level testing
o   HCMOS Technology

**HT25          3-volt Core Logic for 386SX                    c:Dec92...
**HT35          Single-Chip Peripheral Controller [partial info]     ?...
**HTK320        386DX Chip Set                                 c:Sep91
***Info:...
***Configurations:...
***Features:...
**HTK340        "Shasta" 486 Chip Set                          c:Jun92...
**Support Chips:
**HT44          Secondary Cache                                c:Jun92...
**Other:...
*HMC (Hulon Microelectronics)...
*Logicstar...
*Motorola...
*OPTi...
*PC CHIPS/Amptron/Atrend/ECS/Elpina/etc...
**Notes:
You eventually get  to know when a  board is made by PC  Chips just by
looking at it.
 
Here is a test:
1.  No manufacture name, or one of the above.
2.  If the board has a lots of components that sound like a well known 
    part but aren't the well known part. i.e. 'HX Pro' instead of 
    '430HX'
3a. A really good feature set where you think, that's exactly what I'm 
    looking for.
 b. The features don't really work as intended. 
4.  The price is fantastic.
5.  Its disappointing on closer examination.

PC Chips is  renowned for making crap products. Some  are actually not
too bad, they're no worse than  your average brand. However some are a
nightmare either by design or  just poorly made. Fake components glued
on is not  uncommon. Fake labels over other components.  PCB's so thin
they require low insertion force ISA connectors, every trick to save a
few $.

**Early Chipsets:...
**Later Chipsets:...
*SIS...
*Symphony...
*TI (Texas Instruments)...
*UMC...
*Unresearched:...
*VIA...
*VLSI...
*Western Digital...
*Winbond...
*ZyMOS...
*General Sources:...