On My previous system, I had temperatures of about 47-53 deg C IDLE (pretty high, eh?) for my 1.4 ghz cpu with a NoiseControl Silverado HSF. NOW, I just replaced my cpu, old mobo, and hsf with an athlonXP 1800+, Gigabyte MOBO, and Thermaltake Volcano 7+ HSF (All listed in my signature below...