PCChips M539
Chipset
CPU socket
FSB speeds
50MHz55MHz60MHz66MHz
Form factor
Baby AT (max 220 x 330 mm)
Dimensions
Unknown
Cache
256KB512KB
Max RAM size
384MB
RAM types
72-pin FPM72-pin EDO168-pin EDO UDIMM
PSU connector
I/O ports
1x
AT Keyboard
1x
Floppy interface
2x
IDE interface
1x
PS/2 mouse
1x
Parallel
2x
Serial
2x
USB 1.x
Expansion 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 2023-05-17T16:19:45Z
Score is 9.3/10
Chipset
Chipset parts
Clock Synth / PLL chips
Super I/O chips
CPU family support
1 file available
Vendor: AMI [2 entries]
POST string
Note
Core Ver.
BIOS Ver.
Last edit
POST string
51-0625-001437-00111111-071595-HX_PRO-001_10_ADD 3-H
Note
Core version
071595
BIOS version
Release 06/26/1997
Last edit
POST string
51-0300-000000-00111111-071595-HX PRO
Note
Core version
071595
BIOS version
Last edit
No drivers available
1 board document available
Language
Release date
File
Last edit
4 chip documents available
Chip
Language
Release date
File
Last edit
Chip
Language
English
Release date
File
Last edit
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