I've got the same question, considering upgrading my CPU, on their webpage the SS BIOS updates so you can use a Celeron 700, the next latest BIOS update NV mentions support for P3-600, so if I wanted a 700 (not O/Ced) I'd have to go with a Celeron?  I haven't read too much about CPU's lately, what is FC-PGA and how does it relate to this?  will it run in a BH6 rev1.0?