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Dell G15 5535 Owner's Manual

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Removing the system board (Single-color keyboard)

NOTE:This system board is only required for computers that are shipped with a single-color keyboard.

Prerequisites

  1. Follow the procedure in Before working inside your computer.
  2. Remove the base cover.
  3. Remove the battery.
  4. Remove the rear cover.
  5. Remove the solid-state drive.
  6. Remove the wireless card.
  7. Remove the memory module.

About this task

CAUTION:Before removing the system board, give sufficient time for the heat sink to cool down to avoid injury.
NOTE:Replacing the system board removes any changes that you have made to the BIOS using the BIOS setup program. Make the appropriate changes again after you replace the system board.

The following image indicates the connectors on your system-board assembly.

Image: Connectors

  1. Display cable
  2. Dynamic-display switch (DDS) cable (applicable to computers with a 165 Hz or 240 Hz display)
  3. Power-adapter port cable
  4. Right-fan cable
  5. Touchpad cable
  6. Keyboard cable
  7. Keyboard-backlight cable
  8. Keyboard-controller board cable (optional)
  9. Left-fan cable

The following image indicates the location of the system board and provides a visual representation of the removal procedure.

Image: Removing the system boardImage: Removing the system board

Steps

  1. Peel the tape that secures the display-cable connector latch to the system board.
  2. Open the latch and disconnect the display cable from the system board.
  3. Disconnect the dynamic-display switch (DDS) cable from the system board.
    NOTE:This step is applicable only for computers that are shipped with a 165 Hz or 240 Hz display.
  4. Remove the two (M2x5) screws that secure the USB Type-C bracket to the system board and lift the bracket off the system board.
  5. Disconnect the power-adapter port cable from the system board.
  6. Peel the power-adapter port cable off the system board.
  7. Disconnect the right-fan cable from the system board.
  8. Disconnect the speaker cable from the system board.
  9. Open the latch and disconnect the touchpad cable from the system board.
  10. Open the latch and disconnect the keyboard cable from the system board.
  11. Open the latch and disconnect the keyboard-backlight cable from the system board.
  12. Disconnect the left-fan cable from the system board.
  13. Open the latch and disconnect the power-button board cable from the USB board.
  14. Remove the five screws (M2x5) that secure the system board to the palm-rest and keyboard assembly.
  15. Remove the screw (M2x3) that secures the USB board to the palm-rest and keyboard assembly.
  16. Remove the screw (M2x3) that secures the ethernet and audio board to the palm-rest and keyboard assembly.
  17. Remove the screw (M2x4) that secures the left fan to the palm-rest and keyboard assembly.
  18. Lift the system-board assembly off the palm-rest and keyboard assembly.
    NOTE:Ensure that you lift the system board from the upper left and right sides of the heat sink.
  19. Place the system-board assembly on a clean and flat surface.
  20. Turn the system-board assembly over and remove the ethernet and audio board, USB board, and fan and heat-sink assembly.

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