My CPU temps seem to run in the middle to upper 40's. I'm running the XP2500M at 180/12 = 2.16GHZ. I'm using a lapped SLK-900A with a 92mm Vantec Stealth and Arctic Ceramique. Am I OK at these temps? I can't take any noise so more case fans or a jet airplane like cooler fan are out of the question.