Alienware 15 R3 Service Manual

Procedure

Align the screw holes on the computer base with the screw holes on the palm-rest assembly.
Replace the 11 screws (M2.5x8) that secure the computer base to the palm-rest assembly.
Replace the two screws (M2x3) that secure the computer base to the palm-rest assembly.
Connect the tron-light cables to the system board.
Route the marco-keys cable, keyboard cable, and keyboard-backlight cable through the routing guides on the computer base.
Slide the macro-keys cable, keyboard cable, and keyboard-backlight cable into their respective connectors on system board and close the latches to secure the cables.
Route the antenna cables through the routing guides on the computer base.