Aquarius Systems/BCOM MB-4D33N
chipChipset
cpuSockets
Socket 2 (PGA238) PQFP196
speedFSB speeds
16MHz20MHz25MHz33MHz40MHz50MHz
moboForm factor
Baby AT (max 220 x 330 mm)
dimDimensions
254mm x 220mm
chipCache
64KB128KB256KB
ramMax RAM size
64MB
ramRAM types
30-pin SIMM72-pin FPM
pwrPSU connector
AT (P8-P9)
connI/O ports
1x 
AT Keyboard
cardExpansion slots
6x 
16-bit ISA
3x 
32-bit VLB
1x 
8-bit ISA

Also known as:

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 2024-06-30T12:20:59Z
Board info score is 7.9/10
chipChipset parts
UMC UM82C491 UMC UM82C493
cpuCPU family support
2 files available

Vendor: AMI [2 entries]

POST string
Note
Core Ver.
BIOS Ver.
Logs
POST string
40-0100-001112-00101111-080893-UMC491F
Note
Core version
080893
BIOS version
Logs
POST string
40-0101-001112-00101111-111192-UMC491
Note
Core version
111192
BIOS version
Logs
drv No drivers available
doc No board documents available
Chip
Release date
File
Logs
Chip
Release date
File
Logs
Chip
Release date
File
Logs
Family
Release date
File
Logs
Family
Release date
1989-04
File
Logs
Family
Release date
1990
File
Logs
Family
Release date
1992-10
File
Logs
Family
Release date
1992-02
File
Logs

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