Before Working Inside Your Computer:
Save and close all open files and exit all open applications.
Shut down your computer.
Disconnect your computer and all attached devices from their electrical outlets.
Disconnect all cables such as telephone cables, network cables and so on, from your computer.
Press and hold the power button for about 5 seconds, after the computer is unplugged, to ground the system board.
Prerequisites
Remove the battery.
Remove the base cover.
Remove the memory module(s).
Remove the Hard Drive(s).
Remove the Optical Drive.
Remove the keyboard.
Remove the palm rest.
Remove the System Board.
Removing the Thermal-Cooling Assembly:
In sequential order (indicated on the thermal-cooling assembly), remove the screws that secure the thermal-cooling assembly to the system board.
Lift the thermal-cooling assembly off the system board.
