Use cotton swabs, paper towels, and alcohol to gently remove old thermal compound from the fan/heat sink assembly and motherboard.

CAUTION: Do not pour rubbing alcohol on the motherboard or other components! The rubbing alcohol may cause severe damage to your computer.

Apply a small amount of new thermal compound to the center of the brass section of the heat sink. Both areas that need new thermal compound are marked with red boxes.

CAUTION: Use the thermal compound manufacturer’s recommended amount. Applying too much or too little of it may damage your computer.