BIOS ID: 06/22/1999-693-596-W977E-P6BAT-APC-00
BIOS Date: 06/22/99
Chipset: VIA Apollo Pro/133/133A PCI Chipset
It's now running Celeron 400 MHz Overclocked to 500 MHz, and I hope to upgrade the CPU. However, I can't still identify the motherboard using several hardware detection softwares.

I've checked the "Motherboard from BIOS ID" page in this website,
the ID above should give "AP" (I hope that I am not wrong!),
but there is no "AP" in the list...

Could anyone help me to identify the motherboard and provide a link to get the manual if possible?
Anyway, thanks a lot to all of you.
