Well I have a ECS P4M800PRO-M V2.0 flashed as an ECS P4M800PRO-M v1.0a that I got off EBay (Lucky me) running a Pentium D 820 2.8 Ghz running about 47-49 C temp idle and runs about 64 C under a load. BTW I have 3 case fans (loud SOBs). I am currently running 2GB kit (1GBx2), Ballistix 240-pin...