PowerTech MB457
chipChipset
cpuCPU socket
Unknown
cpuCPU family
486 (5V)
speedFSB speed
Unknown
chipCache
None/Integrated in the CPU
ramRAM types
30-pin SIMM72-pin FPM
ramMax RAM size
Unknown
pwrPSU connector
AT-Style (P8-P9)
moboForm factor
Baby-AT (max 220 x 330 mm)
dimDimensions
Unknown
connI/O ports
1x 
AT Keyboard
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

Notes

Same board as Pine PT-2068.1

Last updated 2022-11-24T15:06:47Z
 TRW ID: 6824
chipsetChipset
chipsetChipset parts
UMC UM8496 UMC UM8498F
drv Drivers: not available
BIOS images: 2 files
Manuf.
POST String
Note
Core Ver.
BIOS Ver.
Award
05/24/95-UMC-498GP-2C4X6000-00
4.50G
Award
12/20/94-UMC-498GP-2C4X6000-00
4.50G
Award
10/20/94-UMC-498GP-2C4X6000-00
4.50G
MB45XB
Award
02/07/95-UMC-498GP-2C4X6000-00
4.50G
doc Documentation: not available
doc Other files: not available
No CPUs listed.
No NPUs listed.

Disclaimer

The info found in this page might not be entirely correct. Check out this guide to learn how you can improve it.