U-Board TK-82C491
Chipset
CPU socket 
FSB speeds 25MHz33MHz50MHz
Form factorBaby AT (max 220 x 330 mm)
DimensionsEmpty
Cache
Max RAM size
RAM type 
PSU connector
I/O ports1x
AT Keyboard
Expansion slots6x
16-bit ISA
3x
32-bit VLB
1x
8-bit ISA
Also known as:
- TK TK 82C491/493 4N D15B
- MG (486 UMC491/493)
- Amaquest/Anson/Ansoon Technology Co. (unknown)
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
Last updated 2023-05-28T22:13:14Z
Board info score is 7.6/10
CPU family support
7 files available
Vendor: Award [5 entries]
POST string
Note
Core Ver.
BIOS Ver.
Logs
POST string
06/24/94-UMC-491-2C4X2U02-00
Note
Core version
4.50G
BIOS version
U-BOARD GREEN PC
Logs
Vendor: AMI [3 entries]
POST string
Note
Core Ver.
BIOS Ver.
Logs
POST string
40-0100-001762-00101111-080893-UMC491F
Note
Core version
080893
BIOS version
Logs
POST string
40-0102-428062-00101111-080893-UMC491F
Note
Core version
080893
BIOS version
Logs
POST string
40-0104-428021-00101111-080893-UMC491F
Note
Core version
080893
BIOS version
Logs
No drivers available
No board documents available
Chip
Release date
File
Logs
Image 1 of 6 (fool)
Image 2 of 6 (Robert B)
Image 3 of 6
Image 4 of 6 (fool)
Image 5 of 6
Image 6 of 6
Disclaimer
The info found in this page might not be entirely correct. Check out this guide to learn how you can improve it.