Mystery Motherboard

I can not find who made it or anything in the way of a motherboard manual (which I need).

This is the information that I have off hand..

Chipset: SiS 85C471
Bios: AMI 486DX ISA-BIOS 1993
AB8877898
dtk PKM-0038S E-2

4 72-pin slots
and it does NOT have a ZIF cpu socket.

(on back)
4608004
Made In China

YANG AN YA-1
E114139 94V-0

I havent been able to find anything. All reasonable answers will be accepted.