Matra P54CAIO
Logs
chipChipset
cpuSocket
speedFSB speeds
50MHz60MHz66MHz
moboForm factor
Baby AT (max 220 x 330 mm)
dimDimensions
330mm x 218mm
chipCache
256KB512KB1MB
ramMax RAM size
Empty
ramRAM type
72-pin FPM
pwrPSU connector
connI/O ports
1x 
AT Keyboard
cardExpansion slots
4x 
16-bit ISA
4x 
32-bit PCI
wrench Known issues
  • DALLAS RTC coin cell empty

The motherboard's Real-Time Clock (RTC) chip contains a coin cell that may have drained, causing the loss of CMOS settings. This can result in an inability to save settings, causing system instability or failure to boot. To fix this, the RTC chip can be replaced with an equivalent or repaired by cutting into it and soldering on a new external coin cell holder. Replacement guides are available at https://github.com/necroware/nwX287 or https://github.com/necroware/nw12887, depending on the actual chip used.

notes Notes

PATH 411 marking on the chipset

Last updated 2026-06-13T18:59:09Z
Board info score is 6.3/10
chip Chips
-> Chipset part -> Clock Synth / PLL -> Human Interface -> Real-Time Clock
bios No BIOS files available

vendor Award - 3 entries

POST string
Note
Core Ver.
BIOS Ver.
Logs
POST string
12/22/95 -- 2A5KBM09
Note
Core version
BIOS version
Logs
POST string
2A5KBM0A
Note
Core version
BIOS version
Logs
POST string
2/10/95 -- 2A5KBM01
Note
Core version
BIOS version
Logs
drv 1 driver available
Name
Version
Arch
OS support
Size
Filename
Name
Version
5.12.01.5129
Arch
x86
OS support
Windows 9x Windows 2000
Size
3.374MB
Filename
doc No board documents available

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