ZEOS MP386e

Chipset

VLSI VL82CPCPM-16QC/20QC (AT 16/20 MHz, Page-Mode)

Sockets

FSB speed

16MHz

Form factor

Baby AT (max 220 x 330 mm)

Dimensions

330mm x 218mm

Cache

None/Integrated in the CPU

Max RAM size

4MB

RAM types

DIP-18 (1bit)DIP-16 (1bit)

PSU connector

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

Multi CPU support

Also known as

ZEOS 386SX-16
ZEOS M10001

I/O ports

AT Keyboard

Expansion slots

16-bit ISA

8-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

Bad/shorted tantalum capacitors

Owners of this board have reported tantalum capacitor failures on this board. Make sure there's no short before turning on this board for the first time.

Notes

J33: Installed -> Shadowing disabled. J33 Removed -> RAM shadow enabled (and configured in the BIOS)

J2 is external battery connection

Does not work with Zero wait state ISA VGA cards (does not post) Use a slower card or set the jumper to 1 wait state on the VGA card.

Last updated 2024-10-25T15:06:41Z

Board info score is 9.3/10

Chips