SPRING CIRCLE COMPUTER, INC. 4X521
Logs
chipChipset
cpuSockets
Socket 2 (PGA238) PQFP196
speedFSB speeds
20MHz25MHz33MHz50MHz
moboForm factor
Baby AT (max 220 x 330 mm)
dimDimensions
260mm x 220mm
chipCache
64KB128KB256KB
ramMax RAM size
32MB
ramRAM type
30-pin SIMM
pwrPSU connector
AT (6-pin P8 + 6-pin P9)
maxcpuMulti CPU support
no
tag Also known as
  • Unknown FOREX 486 (REV. VL3H)
connI/O ports
1x 
AT Keyboard
cardExpansion slots
6x 
16-bit ISA
3x 
32-bit VLB
Last updated 2023-08-25T15:15:53Z
Board info score is 8.9/10
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
40-0G00-001398-00101111-080893-4X521-H
Note
eprom, cannot be flashed
Core version
080893
BIOS version
Logs
drv No drivers available
doc 1 board document available
Release date
File
Logs
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 2 (Microhouse)
image2 Image 2 of 2

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