If you have the original version of the MacBook Air (A1237), refer to picture 1. Remove the following screws securing the heat sink to the logic board:
One 5.9 mm Phillips screw.
Two 1.9 mm Phillips screws.
One 1.9 mm Phillips screw.
If you have the A1304 version of MacBook Air, refer to picture 2. Remove the following screws securing the heat sink to the logic board:
Be mindful of the microphone cable when lifting the heat sink, as it can get tangled on the top edge of the fan.
When you mount the heat sink back onto the logic board, be sure to apply a new layer of thermal paste. We have a guide that makes replacing the thermal paste easy.