I just switched cases to an Antec 900 thus i removed my heatsnik (xigmatek s1283?). My idle temps with my E8400 at 3.8 GHz 1.352V are 33/36. What baffles me is that Core 1 never changes temp while in idle: stays at 36. whereas my other core seems to flucuate. When i load prime 95 up, both cores go to 45/46. Is my heatsink not mounted correctly. The 200mm fan on the top of my case is on high (little noise) so maybe its keeping things cool. Either way i really dont care, my temps are rock solid now! I can get my 9800GTX KO's into the 30's now !