PCChips M535
chipChipset
cpuCPU socket
speedFSB speeds
50MHz55MHz60MHz66MHz75MHz
moboForm factor
Baby AT (max 220 x 330 mm)
dimDimensions
220 mm x 260 mm
chipCache
256KB512KB
ramMax RAM size
128MB
ramRAM types
72-pin FPM72-pin EDOSDR UDIMM168-pin EDO UDIMM
pwrPSU connector
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
1x 
COAST Slot
1x 
Pentium VRM Header

Also known as:

  • Pine Technology PT-7502
  • Skywell SW-5500

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.

  • Inadequate Power Delivery

This motherboard may have insufficient power delivery, which can lead to unstable or unsafe operation. In extreme cases, this may result in hardware damage, spontaneous combustion, or other electrical failures. Users should exercise caution and consider upgrading the motherboard power supply or other components to ensure safe and stable operation. The RetroWeb community may also provide guidance and assistance in mitigating this issue.

Notes:

Shares BIOS with the PCChips M520/M525/M530. Needs patched BIOS (either the patched last official BIOS or the Unicore BIOS) to use HDDs larger than 32 GB.

Last updated 2024-01-01T15:13:43Z
Score is 7.2/10
0 files available

Vendor: Award [1 entry]

POST string
Note
Core Ver.
BIOS Ver.
Last edit
POST string
Note
Shares BIOS with M520, compatible with release 03/03/1997 or newer
Core version
4.51PG
BIOS version
Last edit
pwr 2020-07-12
drv 1 driver available
Name
Version
OS support
Size
Filename
Name
Version
3.00
OS support
1987os2 OS/2 Warp 3.0 1993win Windows NT 3.5 1995win Windows 95 1995win Windows NT 3.51 1995win Windows NT 4.0
Size
unknown
Filename
doc 2 board documents available
Language
Release date
File
Last edit
Language
English
Release date
File
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pwr 2020-07-12
Language
English
Release date
File
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pwr 2021-04-05
chipdoc 6 chip documents available
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pwr 2022-08-14
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pwr 2023-08-20
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pwr 2022-08-14
Chip
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pwr 2023-05-01
Chip
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English
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pwr 2023-05-01
Chip
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English
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File
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pwr 2023-08-20

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