Gemlight GMB-386UMC
chipChipset
cpuCPU socket
Unknown
cpuCPU family
386DX
speedFSB speeds
20MHz25MHz33MHz40MHz
chipCache
32KB128KB
ramRAM type
30-pin SIMM
ramMax RAM size
64MB
pwrPSU connector
Unknown
moboForm factor
Baby-AT (max 220 x 330 mm)
dimDimensions
220mm x 218mm
connI/O ports
N/A
cardExpansion slots
1x 
8-bit ISA
5x 
16-bit ISA

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 2021-11-08T18:50:53Z
 TRW ID: 4365
chipsetChipset
chipsetChipset parts
UMC UM82C491 UMC UM82C493
drv Drivers: not available
BIOS images: 1 file
Manuf.
POST String
Note
Core Ver.
BIOS Ver.
AMI
40-0103-428036-00101111-111192-UMC491-H
111192
1.03
AMI
40-0102-428036-00101111-111192-UMC491-H
111192
doc Documentation: 1 entry
doc Other files: not available
Model
Speed
FSB
Voltages
L1 Cache
L2 Cache
L3 Cache
Core
Process
TDP
40MHz
40MHz
5V
1KB
-
-
-
-
-
40MHz
40MHz
5V
1KB
-
-
-
-
-
40MHz
40MHz
5V
-
-
-
-
800nm
3W
33MHz
33MHz
5V
1KB
-
-
-
-
-
33MHz
33MHz
5V
-
-
-
-
1500nm
-
25MHz
25MHz
5V
1KB
-
-
-
-
-
25MHz
25MHz
5V
-
-
-
-
1500nm
-
20MHz
20MHz
5V
-
-
-
-
1500nm
-
No NPUs listed.

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