16. Turn the system board over.
17. Remove the processor heat sink (see Removing the Processor Heat Sink).
18. Remove the processor module (see Removing the Processor Module).
19. Remove the coin-cell battery (see Removing the Coin-Cell Battery).
1. Replace the coin-cell battery (see Replacing the Coin-Cell Battery).
2. Replace the processor module (see Replacing the Processor Module).
3. Replace the processor heat sink (see Replacing the Processor Heat Sink).
4. Turn the system board over.
5. Align the screw holes on the system board with the screw holes on the computer base.
6. Connect the system board connector to the connector on the daughter board.
7. Replace the three screws that secure the system board to the computer base.
8. Connect the speakers cable and the USB board cable to their respective system board connectors.
9. Replace the Bluetooth card (see Replacing the Bluetooth Card).
10. Replace the palm rest (see Replacing the Palm Rest).
11. Replace the power button board (see Replacing the Power Button Board).
12. Replace the keyboard (see Replacing the Keyboard).
13. Replace the center control cover (see Replacing the Center Control Cover).
14. Replace the Mini-Card (see Replacing the Mini-Card).
15. Replace the optical drive (see Replacing the Optical Drive).
16. Replace the hard drive (see Replacing the Hard Drive).
17. Replace the memory module(s) (see Replacing the Memory Module(s)).
18. Replace the module cover (see Replacing the Module Cover).
19. Replace the battery (see Replacing the Battery).
20. Turn on the computer.
21. Enter the service tag (see Entering the Service Tag in the BIOS).
1. Ensure that the AC adapter is plugged in and that the main battery is installed properly.
CAUTION: Before turning on the computer, replace all screws and ensure that no stray screws remain inside the computer. Failure to do so may
result in damage to the computer.
NOTE: After you have replaced the system board, enter the computer's Service Tag into the BIOS of the replacement system board.