Aquarius Systems/BCOM MB-4D33N
chipChipset
cpuCPU sockets
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
connI/O ports
1x 
AT Keyboard
cardExpansion slots
6x 
16-bit ISA
3x 
32-bit VLB
1x 
8-bit ISA

Also known as:

  • Aquarius Systems/BCOM MB-4D50N
  • Aquarius Systems/BCOM MB-4S25N (with no cache!)

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 2024-01-27T19:10:52Z
Score is 7.9/10
chipsetChipset
chipChipset parts
cpuCPU family support
2 files available

Vendor: AMI [2 entries]

POST string
Note
Core Ver.
BIOS Ver.
Last edit
POST string
40-0100-001112-00101111-080893-UMC491F
Note
Core version
080893
BIOS version
Last edit
pwr 2024-01-27
POST string
40-0101-001112-00101111-111192-UMC491
Note
Core version
111192
BIOS version
Last edit
pwr 2022-09-08
drv No drivers available
doc No board documents available
chipdoc 2 chip documents available
Chip
Language
Release date
File
Last edit
Chip
Language
English
Release date
File
Last edit
pwr 2023-10-14
Chip
Language
English
Release date
File
Last edit
pwr 2023-10-14

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