FIC 486 VAV (REV. A)
Logs
chipChipset
cpuSocket
Socket 2 (PGA238)
speedFSB speeds
25MHz33MHz50MHz
moboForm factor
Baby AT (max 220 x 330 mm)
dimDimensions
330mm x 218mm
ramMax VRAM size
2MB
chipCache
64KB128KB256KB
ramMax RAM size
64MB
ramRAM type
72-pin FPM
pwrPSU connector
AT (6-pin P8 + 6-pin P9)
maxcpuMulti CPU support
no
tag Also known as
connI/O ports
1x 
AT Keyboard
1x 
Floppy interface
1x 
IDE interface
1x 
PS/2 mouse
1x 
Parallel
2x 
Serial
1x 
VGA
cardExpansion slots
5x 
16-bit ISA
2x 
32-bit VLB
wrench Known issues
  • Slow cache without "dirty bit" chip installed

This motherboard uses a chipset that does not support a 7+1 bit tag system for cache, and requires a dedicated SRAM chip for dirty bit tracking. If this chip is not installed, all blocks in cache will always be marked as dirty and main memory latency will be significantly higher.

Last updated 2024-08-30T15:54:21Z
Board info score is 9.4/10
chip Chips
cpufam CPU family support
bios 1 BIOS file available

vendor AMI - 1 entry

POST string
Note
Core Ver.
BIOS Ver.
Logs
POST string
X0-0100-001121-00111111-110792-VENUS
Note
Core version
060692
BIOS version
Logs
drv 4 drivers available
Name
Version
OS support
Size
Filename
Name
Version
1.43
OS support
MS-DOS Windows 3.1x
Size
741.9KB
Filename
Name
Version
1.50
OS support
Windows 3.1x
Size
1.4MB
Filename
Name
Version
1.30
OS support
Windows 3.1x
Size
600.3KB
Filename
Name
Version
3.50
OS support
Windows NT 3.1 Windows NT 3.5x
Size
140KB
Filename
doc 1 board document available
Release date
File
Logs
Release date
File
Logs
Chip
Release date
File
Logs
Chip
Release date
File
Logs
Family
Release date
File
Logs
Family
Release date
1989-04
File
Logs
Family
Release date
1990
File
Logs
Family
Release date
1992-10
File
Logs
Family
Release date
1992-02
File
Logs
image1 Image 1 of 3 (Microhouse)
image2 Image 2 of 3 (Michael Günther)
image3 Image 3 of 3 (Michael Günther)

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