NIC TECHNOLOGY, INC. SIH 486B
chipChipset
cpuCPU socket
PGA168
speedFSB speeds
16MHz20MHz25MHz33MHz50MHz
moboForm factor
Baby AT (max 220 x 330 mm)
dimDimensions
218mm x 218mm
chipCache
32KB64KB128KB256KB
ramMax RAM size
32MB
ramRAM type
30-pin SIMM
pwrPSU connector
AT (P8-P9)
connI/O ports
1x 
AT Keyboard
cardExpansion slots
6x 
16-bit ISA
1x 
8-bit ISA

Also known as:

  • MiTAC/Trigon MBA-029
  • NIC TECHNOLOGY, INC. SIH433B

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 2023-12-13T21:59:35Z
Score is 8.9/10
3 files available

Vendor: AMI [3 entries]

POST string
Note
Core Ver.
BIOS Ver.
Last edit
POST string
40-0100-428020-00101111-121291-SIS486-8
Note
Core version
121291
BIOS version
Last edit
pwr 2022-09-26
POST string
30-0200-ZZ1594-00101111-070791-SISAUTO
Note
Core version
070791
BIOS version
Last edit
pwr 2022-12-28
POST string
40-0101-ZZ1339-00101111-050591-SIS-486
Note
Core version
050591
BIOS version
Last edit
pwr 2023-12-13
drv No drivers available
doc 2 board documents available
Language
Release date
File
Last edit
Language
English
Release date
File
Last edit
pwr 1970-01-01
Language
English
Release date
File
Last edit
pwr 2022-09-26
chipdoc 1 chip document available
Chip
Language
Release date
File
Last edit
Chip
Language
English
Release date
File
Last edit
pwr 2023-01-18

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