05-07-2009, 08:19 AM
Buy one of these ↓ ↓ ↓ ↓ and take the computer outside. Use it to blow the bajeezus out of all the dust inside. 90% of the time, overheating is caused by dust blocking the airflow. Especially, you want to check in the heatsink since there's usually a lot of small gaps to fill up.