PCChips M539
chipChipset
cpuCPU socket
Socket 7 (PGA321)
speedFSB speeds
50MHz55MHz60MHz66MHz
moboForm factor
Baby AT (max 220 x 330 mm)
dimDimensions
Empty
chipCache
256KB512KB
ramMax RAM size
384MB
ramRAM types
72-pin FPM72-pin EDO168-pin EDO UDIMM
pwrPSU connector
AT (P8-P9)
connI/O ports
1x 
AT Keyboard
1x 
Floppy interface
2x 
IDE interface
1x 
PS/2 mouse
1x 
Parallel
2x 
Serial
2x 
USB 1.x
cardExpansion slots
3x 
16-bit ISA
4x 
32-bit PCI

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.

Last updated 2024-04-18T16:16:43Z
Board info score is 9.3/10
chipsetChipset
chipChipset parts
ALi M1521 ALi M1523
chipClock Synth / PLL chips
Cypress CY2254
chipSuper I/O chips
UMC UM8670F
cpuCPU family support
1 file available

Vendor: AMI [2 entries]

POST string
Note
Core Ver.
BIOS Ver.
Logs
POST string
51-0625-001437-00111111-071595-HX_PRO-001_10_ADD 3-H
Note
Core version
071595
BIOS version
Release 06/26/1997
Logs
POST string
51-0300-000000-00111111-071595-HX PRO
Note
Core version
071595
BIOS version
Logs
drv No drivers available
doc 1 board document available
Release date
File
Logs
Release date
File
Logs
Chip
Release date
File
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Chip
Release date
File
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Chip
Release date
File
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Chip
Release date
File
Logs
Chip
Release date
File
Logs

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