Another thing you might want to do is to clean out the inside of your tower. After years or use with all the fans blowing a lot of dirt gets sucked up in there sometimes causing problems. Its really easy. Just shut your computer down, unplug the power cable , remove the side of the tower, use a can of canned air to gentle blow out all the dirt and dustbunnies. Hold the the fan on the rear of the case so it wont spin and blow all the dirt out around it. Gently blow all the dirt off the motherboard being careful not to touch it, actually dont touch anything inside , just use the air to blow all the dirt out. You can find canned air at places like Best Buy