Alienware P51E Service Manual page 60

Steps
1. Turn the system board over.
2. Install the heat-sink assembly.
3. Install the audio board.
4. Install the USB Type-C
5. Turn the system-board assembly over.
6. Using the alignment posts, place the system-board assembly on the palm-rest and keyboard assembly.
7. Replace the twelve screws (M2x4) that secure the system board to the palm-rest and keyboard assembly.
8. Replace the one screw (M2x6) that left fan to the palm-rest and keyboard assembly.
9. Replace the three screws (M2x3) that secures the audio board to the palm-rest and keyboard assembly.
10. Adhere the power-adapter port-cable to the system board.
11. Connect the power-adapter port-cable to the system board.
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board.