Packard Bell PB400 (2MB)

Chipset

OPTi 82C495SX (LCWB PC/AT)

Sockets

FSB speeds

16MHz20MHz25MHz33MHz

Form factor

LPX (max 229 x 330 mm)

Dimensions

330mm x 218mm

Max VRAM size

2MB

Cache

64KB128KB256KB

Max RAM size

6MB((82C495 AT U77))18MB((82C495B1 AT U77))

RAM type

30-pin SIMM

PSU connector

AT (6-pin P8 + 6-pin P9)

Also known as

Packard Bell PB401T (2MB)

I/O ports

Floppy interface

Gameport

IDE interface

PS/2 keyboard

PS/2 mouse

Parallel

Serial

VGA

Expansion slots

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

J21 is the second serial port at TTL level for an optional modem or level shifted serial port breakout

Last updated 2025-05-09T19:47:53Z

Board info score is 7.5/10

Chips