Aquarius Systems/BCOM MB-4DUPC
chipChipset
cpuCPU socket
speedFSB speeds
20MHz25MHz33MHz40MHz50MHz
moboForm factor
Baby AT (max 220 x 330 mm)
dimDimensions
260mm x 220mm
chipCache
128KB256KB512KB
ramMax RAM size
128MB
ramRAM type
72-pin FPM
pwrPSU connector
connI/O ports
1x 
AT Keyboard
1x 
Floppy interface
1x 
Gameport
2x 
IDE interface
1x 
PS/2 mouse
1x 
Parallel
2x 
Serial
cardExpansion slots
4x 
16-bit ISA
3x 
32-bit PCI

Known issues:

  • DALLAS RTC coin cell empty

The motherboard's Real-Time Clock (RTC) chip contains a coin cell that may have drained, causing the loss of CMOS settings. This can result in an inability to save settings, causing system instability or failure to boot. To fix this, the RTC chip can be replaced with an equivalent or repaired by cutting into it and soldering on a new external coin cell holder. Replacement guides are available at https://github.com/necroware/nwX287 or https://github.com/necroware/nw12887, depending on the actual chip used.

Notes:

GA-486AM and Shuttle HOT-433 rev 1 bios seem to work on this board, however, we would like to have a backup of the original bios as well.

Last updated 2023-10-14T17:08:18Z
Score is 8.8/10
0 files available

Vendor: Award [1 entry]

POST string
Note
Core Ver.
BIOS Ver.
Last edit
POST string
10/04/95-UMC-881/886A-2A4X5A3KC-00
Note
(file was corrupt and thus removed)
Core version
4.50PG
BIOS version
1.3p
Last edit
pwr 2023-04-06
drv No drivers available
doc 2 board documents available
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Release date
File
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Language
English
Release date
File
Last edit
pwr 1970-01-01
Language
English
Release date
File
Last edit
pwr 2023-04-06
chipdoc 1 chip document available
Chip
Language
Release date
File
Last edit
Chip
Language
English
Release date
File
Last edit
pwr 2023-10-14

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