Removal
Base Cover
Identify the base cover highlighted in blue.
Loosen the captive screws that secure the base cover to the palm rest assembly.
Remove the screws that secure the base cover from the palm rest assembly.
Using a plastic scribe, pry open the base cover along the gap formed near the display hinges.
Lift the base cover off the palm rest assembly.
Battery Cable
Identify the battery cable highlighted in blue.
Disconnect the battery cable from the system board.
Press and hold the power button for 10 seconds to ground the system and remove residual static electricity.
Heat sink
Identify the heat sink highlighted in blue.
Remove the screws that secure the heat sink to the system board. Remove in reverse order.
Lift the heat sink from the system board.
Use the alcohol pad to clean the system board and heatsink (as shown in the video).
Install
Heat sink
Identify the heat sink location highlighted in blue.
Apply a pea sized amount of thermal material as shown.
Align it with the screw holes and place the heat sink on the system board.
Install the screws that secure the heat sink to the system board. Install in order. Do not over tighten.
Battery Cable
Identify the battery cable location highlighted in blue.
Connect the battery cable on the system board.
Base Cover
Identify the base cover location highlighted in blue.
Align the base cover with the screw holes and press the edges of the cover until it clicks into place.
Tighten the screws that secure the base cover to the palm rest assembly.
Install the screws that secure the base cover to the palm rest assembly.