Matra P54CAIO
50MHz60MHz66MHz
Baby AT (max 220 x 330 mm)
330mm x 218mm
1x
AT Keyboard
4x
16-bit ISA
4x
32-bit PCI
- 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.
PATH 411 marking on the chipset
Last updated 2026-06-13T18:59:09Z
Board info score is 6.3/10
-> Chipset part
-> Clock Synth / PLL
-> Human Interface
-> Real-Time Clock
Name
Version
Arch
OS support
Size
Filename
Name
Version
5.12.01.5129
Arch
x86
OS support
Size
3.374MB
Filename
Chip
Release date
File
Logs
Chip
Release date
1995-11-30
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
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