I am currently running my AMD PII 940 BE on stock @ 3.45ghz safely. I was wondering with my current system setup (in sig), how much I can OC it safely on air. Right now I am using an Antec 300 case with 3 4x4 Fans venting in the system, and an extra vent port installed in one of the rear expansions. Graphics cards run @ 57c max with their OC. Anyone here have some tips?