DFI 486-25/33UNB AIO, 486DX2-50UNB AIO
Chipset
Socket 
FSB speeds 20MHz25MHz33MHz50MHz
Form factorLPX (max 229 x 330 mm)
Dimensions330mm x 218mm
Max VRAM size1MB
Cache
None/Integrated in the CPU
Max RAM size
16MB
RAM type 72-pin FPM
PSU connector
I/O ports1x
AT Keyboard
1x
Floppy interface
1x
IDE interface
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.
Last updated 2025-09-05T09:28:51Z
Board info score is 8.8/10
Chips
-> Chipset part
-> RAMDAC
-> Signal transmitter/receiver
-> 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-ZZ1211-00111111-070791-U461/M50
Note
Core version
070791
BIOS version
Logs
14 drivers available
Name
Version
OS support
Arch
Size
Filename
Name
Version
1992-01-15
OS support
Windows 3.0
Windows 3.1x
Arch
x86
Size
504.9KB
Filename
Name
Version
1991-10-29
OS support
Windows 3.1x
Arch
x86
Size
397.5KB
Filename
Name
Version
1991-12-06
OS support
Windows 3.0
Windows 3.1x
Arch
x86
Size
399.3KB
Filename
Name
Version
4.0.953
OS support
Windows 9x
Arch
x86
Size
18.4KB
Filename
Version
OS support
Arch
Size
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 2 (Microhouse)
Image 2 of 2 (Rob Curley)
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