3. Disconnect the power-adapter port cable from the system board.
4. Disconnect the speaker cable from the system board.
5. Open the latch and disconnect the keyboard from the system board.
6. Open the latch and disconnect the touchpad cable from the system board.
7. Open the latch and disconnect the hard-drive cable from the system board.
8. Open the latch and disconnect the optical-drive connector-board cable.
9. Open the latch and disconnect the I/O board cable from the system board.
10. Open the latch and disconnect the power-button board cable from the system board.
11. Open the latch and disconnect the fingerprint reader cable from the system board.
NOTE:
Skip this step if your computer was shipped without a fingerprint reader installed.
Removing the system board
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