SORRY I didn't write it earlier.

This is full nr, from left/down corner of screen after turn on comp.
10/08/1999-693-596-W977-2A6LGSMAC-00

And also maybe this will help:
Mainboard: SUPER POWER 7XV,v.A.5

BIOS: AWARD MODULAR BIOS 4.51PG,.....,1984-99

This mainboard is for Celeron PPGA,socket370. :