Originally Posted by setishock
Simple really. It's dirty. Get a can of air from any store that deals with computers and blow out the heatsink fins. Clean out the rest of the case while you're at it. Take a Q-tip and clean off the fan blades.
i just did that i think last week. i stuck the hs in the dish washer, maybe that had something to do with it. i cleaned some surface dust off the fan and no i didnt put the fan in the washer and yes i put new thermal.
i always leave my computer on, but just today i turned it off when i left the house. when i turned it back on sys temp was 22c and fan was quiet. 2200 avg rpm. its been on for about 10 min, and its already up to 4000 rpm. cpu temp 60c