FIC 486-VAL
Logs
chipChipset
cpuSockets
PQFP196 Socket 1 (PGA169)
speedFSB speeds
20MHz25MHz33MHz50MHz
moboForm factor
LPX (max 229 x 330 mm)
dimDimensions
330mm x 218mm
chipCache
64KB128KB256KB
ramMax RAM size
64MB
ramRAM type
72-pin FPM
pwrPSU connector
AT (6-pin P8 + 6-pin P9)
connI/O ports
1x 
Floppy interface
1x 
IDE interface
1x 
PS/2 keyboard
1x 
PS/2 mouse
1x 
Parallel
2x 
Serial
1x 
VGA
cardExpansion slots
5x 
16-bit ISA
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.

  • Expansion slots are on proprietary riser

The listed slots are on the riser card that came with the motherboard.
If you have this board make sure you have the riser for it.

Last updated 2025-06-30T17:09:25Z
Board info score is 9.8/10
chip Chips
-> Chipset part
VIA VT82C495 VIA VT82C481
-> Human Interface
(multiple brand) 8042 (Keyboard Controller)
-> RAMDAC
AT&T 20C493
-> Real-Time Clock
Dallas DS1287
-> Signal transmitter/receiver
(multiple brand) MC1488 (RS-232 Driver) (multiple brand) MC1489 (RS-232 Receiver)
-> Super I/O
SMSC/SMC FDC37C651
-> Video
S3 86C805
cpufam CPU family support
bios 1 BIOS file available

vendor AMI - 1 entry

POST string
Note
Core Ver.
BIOS Ver.
Logs
POST string
Note
Core version
BIOS version
Logs

vendor Award - 1 entry

POST string
Note
Core Ver.
BIOS Ver.
Logs
POST string
04/24/93-VENUS-VIA
Note
Includes video bios: Quadtel S3 86C805 VL/EISA Enhanced VGA BIOS. Version 2.13.03
Core version
4.20
BIOS version
Logs
drv 2 drivers available
Name
Version
OS support
Arch
Size
Filename
Name
Version
2.41
OS support
Windows 3.1x
Arch
x86
Size
445.7KB
Filename
Name
Version
2.00.18
OS support
Windows NT 4.0
Arch
x86
Size
177.7KB
Filename
doc 2 board documents available
Release date
File
Logs
Release date
File
Logs
Release date
File
Logs
Chip
Release date
File
Logs
Chip
Release date
File
Logs
Chip
Release date
File
Logs
Chip
Release date
1995-11-30
File
Logs
Chip
Release date
2009-12
File
Logs
Chip
Release date
2009-12
File
Logs
Chip
Release date
1995-11-22
File
Logs
Chip
Release date
1994-07
File
Logs
Chip
Release date
1996-01
File
Logs
Family
Release date
File
Logs
Family
Release date
1995-12
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 8 (Microhouse)
image2 Image 2 of 8 (Uwe Karaschewski)
image3 Image 3 of 8 (Uwe Karaschewski)
image4 Image 4 of 8 (Uwe Karaschewski)
image5 Image 5 of 8 (Uwe Karaschewski)
image6 Image 6 of 8 (Uwe Karaschewski)
image7 Image 7 of 8 (Uwe Karaschewski)
image8 Image 8 of 8 (Uwe Karaschewski)

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