I just downloaded the latest Speedfan and Coretemp and ran them at the same time on a Q6600 (at 3.0) and Abit IP35 Pro with TR 120 Ultra air cooling. Coretemp seemed stable but reported each core at a slightly diifferent temp (idle), like 40-38-36-32 or similar. What was really crazy was Speedfan showing the CPU fluctuating from MINUS 60C to over 110C and everywhere in between. That can't be normal right?