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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
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**82C601/2 Buffer Devices <Nov94
***Info:...
***Versions:...
***Features:...
**82C822 PCIB (VLB-to-PCI bridge) c:94...
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*Unresearched:...
*VIA...
**VT82C486/2/3 "GMC chipset" [no datasheet, some info] ?
***Notes:...
***Info:
8) The VIA GMC chipset (VIA: 1106/4358) (5/18/96)
--------------------
This chipset includes the VIA VT82C486A-F with a built-in 8042
keyboard controller and a VIA VT82C505-D chipset for the VESA to PCI
bridge. Specifically, the chips are as follows:
82C486A - cache/memory controller + VLB to ISA bridge
82C482 - VLB to ISA bridge (why there are two I'm not sure)
82C483 - DRAM controller
VT82C505 PCI to VLB bridge
A board using this chipset has been unstable (even under DOS/Win), and
did not work with an Adaptec 2940 SCSI controller under OS/2 at all.
Boards based on this chipset are therefore to be avoided. I have,
however, had one report of success from someone using revision G of
this chipset, so it could be that the new revision fixes problems with
older rev's. Designers with whom I've corresponded indicate that
improperly designed boards which use this chipset may have unstable
caches. In addition, the cache controller reads the data into the
cache SRAMs first, then into the CPU, increasing latency and reducing
throughput.
***Configurations:...
**VT82C495/480 "Venus" Chip Set [no datasheet] ?
**VT82C495/491 ? EISA Chip Set [no datasheet, some info] <93...
**VT82C496G Pluto, Green PC 80486 PCI/VL/ISA System <05/30/94...
**VT82C530MV 3.3V Pentium chipset [no datasheet, some info]<05/30/94...
**VT82C570M Apollo Master, Green Pentium/P54C <06/22/95...
**VT82C580VP Apollo VP, Pentium/M1/K5 PCI/ISA System <02/15/96...
**VT82C580VPX Apollo VPX, VPX/97, Pentium with 66/75MHz Bus <01/09/97...
**VT82C590 Apollo VP2, VP2/97, Single-Chip Pentium 66MHz <01/10/97...
**VT82C597/AT Apollo VP3, Single-Chip for Pentium with AGP <10/03/97...
**VT82C598MVP Apollo MVP3,Single-Chip 66/75/83/100MHz & AGP <09/22/97
***Notes:...
***Info:...
***Configurations:...
***Features:...
**VT8501 Apollo MVP4,Single-Chip 66-100MHz & AGP <11/04/98...
**VT82C680 Apollo P6, Pentium-Pro Chip Set <08/30/96...
**Support chips:
**VT82C505 Pentium/486 VL to PCI Bridge <05/30/94...
**VT82C586/A/B PCI Integrated Peripheral Controller <10/13/96...
**VT82C596/A Mobile PCI Integrated Peripheral Controller <11/05/97...
**VT82C686A/B PCI Super-I/O Integrated Peripheral Ctrl. <02/10/98...
**Later P-Pro/II/III/Celeron...
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