ECS UM486-VIO (D4M) Rev. 1.0
Chipset
Sockets 
FSB speeds 25MHz33MHz
Form factorLPX (max 229 x 330 mm)
DimensionsEmpty
Max VRAM size1MB
Cache
128KB256KB
Max RAM size
20MB(4MB onboard)
RAM type 30-pin SIMM
PSU connector
I/O ports1x
Floppy interface
1x
IDE interface
1x
PS/2 keyboard
1x
PS/2 mouse
1x
Parallel
2x
Serial
1x
VGA
Expansion slots1x
16-bit ISA
Known issues
- Expansion slots are on proprietary riser
The listed slots are on the riser card that came with the motherboard.
If you have this board make sure you have the riser for it.
Notes
There is an open-source project for a 5-slot ISA replacement riser compatible with this board.
Last updated 2025-11-05T15:52:15Z
Board info score is 9.5/10
Chips
-> Chipset part
-> Super I/O
-> Video
CPU family support
1 BIOS file available
AMI - 1 entry
POST string
Note
Core Ver.
BIOS Ver.
Logs
POST string
40-0100-001131-00111111-111192-UMC480-F
Note
Core version
111192
BIOS version
Logs
2 drivers available
Name
Version
OS support
Arch
Size
Filename
Name
Version
3.50
OS support
Windows NT 3.1
Windows NT 3.5x
Arch
x86
Size
140KB
Filename
Name
Version
N/A
OS support
Empty
Arch
x86
Size
19.7KB
Filename
1 board document available
Release date
File
Logs
Chip
Release date
File
Logs
Chip
Release date
File
Logs
Chip
Release date
1990
File
Logs
Chip
Release date
1996-08-09
File
Logs
Chip
Release date
1996-05-15
File
Logs
Chip
Release date
File
Logs
Chip
Release date
File
Logs
Family
Release date
File
Logs
Image 1 of 3 (bluelambda)
Image 2 of 3 (MicrobE)
Image 3 of 3 (MicrobE)
Disclaimer
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