PCChips/Hsin Tech M321 (rev. 2.x)
Chipset
Sockets 
FSB speeds 25MHz33MHz40MHz
Form factorBaby AT (max 220 x 330 mm)
Dimensions250mm x 196mm
Cache
32KB64KB128KB256KB
Max RAM size
32MB
RAM type 30-pin SIMM
PSU connector
Also known as
- ILON USA, INC. M321 (rev. 2.x)
- Morse M321 (rev. 2.x)
I/O ports1x
AT Keyboard
Expansion slots6x
16-bit ISA
2x
8-bit ISA
Known issues
- Leaky Ni-Cd clock battery
The Ni-Cd battery may be leaking, risking damage to PCB layers & nearby components. Promptly remove the battery & clean corrosion/alkaline salts from the board. Use white vinegar to dissolve salts, but exercise caution as vinegar can corrode exposed metals. A thorough examination & repair may be needed. Replace battery with guide: https://github.com/wiretap-retro/Not-A-Varta
Notes
If U32 is populated, supports writeback.
Rev 2.6 only: Jumper J16 (next to 2nd ISA slot)
| Jumper Position | CPU Frequency |
|---|---|
| 1-2 | 40MHz |
| 2-3 | 33MHz |
| None | 25MHz |
Last updated 2025-02-10T15:49:53Z
Board info score is 9.1/10
Chips
6 BIOS files available
AMI - 5 entries
POST string
Note
Core Ver.
BIOS Ver.
Logs
POST string
30-0100-001437-00101111-060692-PC CHIP-F
Note
trans ameritech enterprises OEM
Core version
060692
BIOS version
Logs
Mr. BIOS - 1 entry
POST string
Note
Core Ver.
BIOS Ver.
Logs
No drivers available
1 board document available
Release date
File
Logs
Chip
Release date
File
Logs
Chip
Release date
File
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Chip
Release date
1990
File
Logs
Chip
Release date
1996-08-09
File
Logs
Chip
Release date
1996-05-15
File
Logs
Chip
Release date
File
Logs
Chip
Release date
File
Logs
Image 1 of 9 (Microhouse)
Image 2 of 9 (pshipkov)
Image 3 of 9 (old_pc_parts)
Image 4 of 9 (ThisOldTech)
Image 5 of 9 (tomaszdko)
Image 6 of 9 (evasive)
Image 7 of 9 (Alexei)
Image 8 of 9 (Alexei)
Image 9 of 9 (ThisOldTech)
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