US Logic FALCON IV
Logs
chipChipset
cpuSocket
Socket 2 (PGA238)
speedFSB speeds
25MHz33MHz50MHz
moboForm factor
Single Board Computer
dimDimensions
330mm x 218mm
chipCache
64KB256KB
ramMax RAM size
64MB
ramRAM type
72-pin FPM
pwrPSU connector
Empty
maxcpuMulti CPU support
no
connI/O ports
1x 
Floppy interface
1x 
IDE interface
1x 
PS/2 keyboard
1x 
PS/2 mouse
1x 
Parallel
2x 
Serial
cardExpansion slots
1x 
16-bit ISA
wrench Known issues
  • Leaky Ni-Cd clock battery

The Ni-Cd battery may be leaking, risking damage to PCB layers & nearby components. Promptly remove the battery & clean corrosion/alkaline salts from the board. Use white vinegar to dissolve salts, but exercise caution as vinegar can corrode exposed metals. A thorough examination & repair may be needed. Replace battery with guide: https://github.com/wiretap-retro/Not-A-Varta

Last updated 2026-03-01T10:59:15Z
Board info score is 7.6/10
bios 0 BIOS files available

vendor AMI - 1 entry

POST string
Note
Core Ver.
BIOS Ver.
Logs
POST string
41-0000-006338-00111111-071595-OPTI498-R
Note
Core version
071595
BIOS version
3.2P
Logs
drv No drivers available
doc 1 board document available
Release date
File
Logs
Release date
File
Logs
Chip
Release date
File
Logs
Chip
Release date
File
Logs
Chip
Release date
1990
File
Logs
Chip
Release date
1996-08-09
File
Logs
Chip
Release date
1996-05-15
File
Logs
Chip
Release date
File
Logs
Chip
Release date
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 1 (US Logic)

Disclaimer

The info found in this page might not be entirely correct. Check out this guide to learn how you can improve it.