ATC/Unitron U3911-V3
chipChipset
cpuCPU sockets
DIP40 PLCC68
speedFSB speeds
10MHz12MHz
moboForm factor
Baby AT (max 220 x 330 mm)
dimDimensions
330mm x 220mm
chipCache
None/Integrated in the CPU
ramMax RAM size
4MB
ramRAM types
DIP-18 (1bit)DIP-16 (1bit)
pwrPSU connector
AT (P8-P9)
connI/O ports
1x 
AT Keyboard
cardExpansion slots
6x 
16-bit ISA
2x 
8-bit ISA

Also known as:

  • ATC/Unitron U3911-V1
  • ATC/Unitron U3911-V2

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 2023-09-04T20:09:30Z
Score is 9.1/10
2 files available

Vendor: AMI [1 entry]

POST string
Note
Core Ver.
BIOS Ver.
Last edit
POST string
DVL2-1160-040990-K8
Note
Core version
040990
BIOS version
Last edit
pwr 2023-03-21

Vendor: Phoenix [1 entry]

POST string
Note
Core Ver.
BIOS Ver.
Last edit
POST string
Note
P/N 891012 - 80286
Core version
3.10 00
BIOS version
Last edit
pwr 2020-11-11
drv 1 recommended driver available
Name
Version
OS support
Size
Filename
Name
Version
1.02
OS support
1981msdos MS-DOS
Size
52.5KB
Filename
Name
Version
OS support
Size
Filename
Name
Version
1.00
OS support
1981msdos MS-DOS
Size
31.9KB
Filename
doc 1 board document available
Language
Release date
File
Last edit
Language
English
Release date
File
Last edit
pwr 2023-03-21
chipdoc 15 chip documents available
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pwr 2022-09-17
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English
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pwr 2022-09-18

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