Alienware m15 R3 Service Manual

Installing the system board

1. Install the fan and heat-sink assembly.
2. Install the left I/O-board.
3. Turn the system-board assembly over and place the system-board assembly on the palm-rest assembly.
   NOTE When the system board is installed it is removed as an assembly consisting of:

   • system board
   • left I/O-board
   • fan and heat-sink assembly
4. Align the screw holes on the system board with the screw holes on the palm-rest assembly.
5. Replace the two (M2x3) screws that secure the left I/O-board to the palm-rest assembly.
6. Replace the eight (M2x3) screws that secure the system board to the palm-rest assembly.
7. Replace the three (M2x3) screws that secure the fan and heat-sink assembly to the palm-rest assembly.
8. Replace the two (M2x4.5) screws that secure the fan and heat-sink assembly to the palm-rest assembly.
9. Connect the G-sensor cable to the connector on the system board.
   NOTE Ensure that you connect the G-sensor cable before you connect the display cable.
10. Connect the Tobii eye tracker cable to the connector on the system board.
    NOTE This step is only applicable to computers shipped with a Tobii eye tracker.
11. Connect the display cable to the connector on the system board and close the latch.
12. Connect the touchpad cable to the touchpad and close the latch.
13. Connect the keyboard-controller board-cable to the system board and close the latch.
14. Connect the power-adapter port cable to the system board.
15. Using the tabs on the M.2 SSD frame and the slots on the system board, align the screw holes of the M.2 SSD frame with the screw holes on the system board.
16. Replace the three screws (M2x4.5) that secure the M.2 SSD frame to the system board.
17. Route the antenna cables to the routing guides on the left fan and system board.
18. Adhere the tapes that secure the antenna cables to system board and left fan.
19. Connect the antenna cables to the wireless card on the left I/O-board.

    The following table provides the antenna-cable color scheme for the wireless card supported by your computer.

    Table 1. Antenna-cable color scheme

    The following table provides the antenna-cable color scheme for the wireless card supported by your computer.

    Connectors on the wireless card	Antenna-cable color
    Main (white triangle)	White
    Auxiliary (black triangle)	Black

20. Connect the power-button cable to the left I/O-board and close the latch.
21. Place the wireless card bracket on the wireless card.
22. Align the screw hole on the wireless card bracket to the screw hole on the wireless card.
23. Replace the screw (M2x3) that secures the wireless card bracket to the left I/O-board.
24. Adhere the Mylar over the system board.