Dell XPS 13 9315 Service Manual page 35

Steps
1. Align the screw holes on the system board with the screw holes on the palm-rest and keyboard assembly.
2. Hold the system board by the long edges and place the system board on the palm-rest and keyboard assembly. Ensure that
the left Thunderbolt 4 port is aligned with the left port hole on the palm-rest and keyboard assembly.
3. Replace the five screws (M1.6x1.5) that secure the system board to the palm-rest and keyboard assembly.
4. Connect the I/O daughter-board power cable to the system board.
5. Connect the touchpad cable and close the latch of the touchpad connector.
6. Connect the fan cable and close the latch of fan cable connector.
7. Connect the wireless-module cables from the wireless module.
8. Place the system-board interposer board on the system board.
NOTE: Ensure the cutouts of I/O daughter-board interposer board are aligned with the stubs on the I/O daughter-
board.
CAUTION: The pins on the interposer board are fragile. Hold and lift the interposer board from the edges or
the sides.
9. Replace the screw (M1.6x2.8) that secures the I/O daughter-board cable to the system board.
10. Align the screw hole of the wireless-module bracket with the screw hole on the system board.
11. Replace the screw (M1.6x2.3) that secures the wireless-module bracket to the system board.
Next steps
1. Install the heat sink.
2. Install the display assembly.
3. Install the battery.
4. Install the base cover.
5. Follow the procedure in After working inside your computer.
Removing and installing components 35