Follow the procedures in Before Working Inside Your Computer:
Ensure that you follow the Safety Instruction.
Ensure that your work surface is flat and clean to prevent the computer cover from being scratched.
Turn off your computer.
Disconnect all network cables from the computer.
CAUTION: To disconnect a network cable, first unplug the cable from your computer and then unplug the cable from the network device.
Disconnect your computer and all attached devices from their electrical outlets.
Press and hold the power button while the computer is unplugged to ground the system board.
Remove:
base cover
battery
Removing the System Fan:
Perform the steps as shown in the illustration:
Disconnect the left system fan cable from its connector on the system board.
Remove the screws that secure the left system fan to the system board.
Lift and remove the left system fan from the computer.
Disconnect the right system fan cable from its connector on the system board. Peel away the system board flex cable from the right system fan.
Remove the screws that secure the right system fan to the system board.
Lift and remove the right system fan from the computer.
Installing the System Fan:
Place the right system fan into its original position in the system board and affix the system board flex cable.
Tighten the screws that secure the right system fan to the system board.
Connect the right system fan cable to its connector on the system board.
Place the left system fan into its original position in the system board.
Tighten the screws that secure the left system fan to the system board.
Connect the left system fan cable to its connector on the system board.
Install:
battery
base cover
Follow the procedures in After Working Inside Your Computer:
Connect any telephone or network cables to your computer.
CAUTION: To connect a network cable, first plug the cable into the network device and then plug it into the computer.
Connect your computer and all attached devices to their electrical outlets.
Turn on your computer.
If required, verify that the computer works correctly by running ePSA diagnostics.
