Twinhead PX-88B REV R2
Logs
chipChipset
cpuSocket
DIP40
speedFSB speeds
4.77MHz7.16MHz9.54MHz
moboForm factor
OEM / Proprietary
dimDimensions
Empty
chipCache
None/Integrated in the CPU
ramMax RAM size
Empty
ramRAM type
DIP-18 (1bit)
pwrPSU connector
AT (6-pin P8 + 6-pin P9)
tag Also known as
connI/O ports
1x 
Bus Mouse
1x 
CGA
1x 
Floppy interface
1x 
PS/2 keyboard
1x 
Parallel
1x 
Serial
cardExpansion slots
3x 
8-bit ISA
wrench 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

  • 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 2026-02-06T13:36:45Z
Board info score is 8.3/10
chip Chips
-> Chipset part
Twinhead 6000G1
-> Floppy ctrl.
UMC UM8397 (Floppy controller)
-> Signal transmitter/receiver
(multiple brand) MC1488 (RS-232 Driver) (multiple brand) MC1489 (RS-232 Receiver)
-> Super I/O
Twinhead 6250G1
-> UART ctrl.
(multiple brand) 8250 (UART)
-> Video
Twinhead 6190G1
cpufam CPU family support
bios 2 BIOS files available

vendor Twinhead - 2 entries

POST string
Note
Core Ver.
BIOS Ver.
Logs
POST string
Note
Core version
2.03
BIOS version
Logs
POST string
Note
Peacock PC-XT Turbo
Core version
2.10
BIOS version
Logs
drv No drivers available
doc 1 board document available
Release date
File
Logs
Release date
File
Logs
Chip
Release date
File
Logs
Chip
Release date
2009-12
File
Logs
Chip
Release date
2009-12
File
Logs
Chip
Release date
File
Logs
Chip
Release date
1990
File
Logs
Chip
Release date
1990
File
Logs
Chip
Release date
File
Logs
image1 Image 1 of 8 (RetroShare)
image2 Image 2 of 8 (RetroShare)
image3 Image 3 of 8 (qwer qwertov)
image4 Image 4 of 8 (RetroShare)
image5 Image 5 of 8 (RetroShare)
image6 Image 6 of 8 (RetroShare)
image7 Image 7 of 8 (RetroShare)
image8 Image 8 of 8 (RetroShare)

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