Need Advice on Upgrading Toshiba A15-S127 CPU

[jdsemler]

This motherboard has a 2.0 ghz celeron in it. It looks like a 478 socket. Can I go get a Pentium M chip and stick it in, or is there special BIOS support that this motherboard would need? It uses the Intel 852GM chipset if that helps.

Thanks in advance.