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Chaintech 4UL
chipChipset
cpuCPU socket
Unknown
speedFSB speeds
20MHz25MHz33MHz50MHz
moboForm factor
Baby AT (max 220 x 330 mm)
dimDimensions
Unknown
chipCache
None/Integrated in the CPU
ramMax RAM size
32MB
ramRAM types
30-pin SIMM72-pin FPM72-pin EDO
pwrPSU connector
AT (P8-P9)
connI/O ports
1x 
AT Keyboard
cardExpansion slots
6x 
16-bit ISA
3x 
32-bit VLB

Also known as:

  • Chaintech 486UL P101

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 2022-03-15T21:27:40Z
Score is 6.8/10
chipsetChipset
chipChipset parts
UMC UM82C491 UMC UM82C493
cpuCPU family support
0 files available
drv No drivers available
doc 1 board document available
Language
Release date
File
Last edit
Language
English
Release date
File
Last edit
pwr 2021-04-24
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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