U-Board TK-82C491
Chipset
CPU socket
FSB speeds
25MHz33MHz50MHz
Form factor
Baby AT (max 220 x 330 mm)
Dimensions
Unknown
I/O ports
1x
AT Keyboard
Expansion slots
6x
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
Score is 7.6/10
CPU family support
7 files available
Vendor: Award [5 entries]
POST string
Note
Core Ver.
BIOS Ver.
Last edit
POST string
06/24/94-UMC-491-2C4X2U02-00
Note
Core version
4.50G
BIOS version
U-BOARD GREEN PC
Last edit
POST string
01/14/94-UMC-491-2C4X2U01-00
Note
Core version
4.50G
BIOS version
Last edit
POST string
11/09/93-UMC-491-2C4X2U01-00
Note
Core version
4.50G
BIOS version
Last edit
POST string
06/24/94-UMC-491-2C4X2U02-02
Note
Core version
4.50G
BIOS version
Last edit
POST string
11/02/93-UMC-491-2C4X2U00-00
Note
Core version
4.50G
BIOS version
Last edit
Vendor: AMI [3 entries]
POST string
Note
Core Ver.
BIOS Ver.
Last edit
POST string
40-0100-001762-00101111-080893-UMC491F
Note
Core version
080893
BIOS version
Last edit
POST string
40-0102-428062-00101111-080893-UMC491F
Note
Core version
080893
BIOS version
Last edit
POST string
40-0104-428021-00101111-080893-UMC491F
Note
Core version
080893
BIOS version
Last edit
No drivers available
No board documents available
2 chip documents available
Chip
Language
Release date
File
Last edit
Chip
Language
English
Release date
File
Last edit
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