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Dell G7 17 7700 Service Manual

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Installing the system board

Prerequisites

If you are replacing a component, remove the existing component before performing the installation procedure.

NOTE: The Service Tag of your computer is stored in the system board. Enter the Service Tag in the BIOS setup program after you replace the system board.
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.

About this task

The following image indicates the cables on your system board.
Figure 1. System-board cables
Image: System-board cables
  1. Display cable
  2. I/O-board cable
  3. Touchpad cable
  4. Keyboard cable
  5. Keyboard-backlight cable
  6. Light-bar cable
  7. Speaker cable
  8. Coin-cell battery cable
  9. G-key cable

The following images indicate the location of the system board and provide a visual representation of the installation procedure.

Image: Installing the system board

Image: Connecting the system board

Steps

  1. Align the screw holes on the system board with the screw holes on the palm-rest and keyboard assembly.
  2. Replace the five screws (M2x2) that secure the system board to the palm-rest and keyboard assembly.
  3. Connect the G-key cable to the system board and close the latch.
  4. Connect the coin-cell battery cable to the system board.
  5. Connect the speaker cable to the system board.
  6. Connect the light-bar cable to the system board and close the latch.
  7. Connect the keyboard-back light cable to the system board and close the latch.
  8. Connect the keyboard cable to the system board and close the latch.
  9. Connect the touchpad cable to the system board and close the latch.
  10. Connect the I/O-board cable to the system board and close the latch.
  11. Align the screw hole on the display-cable with the screw hole on the system board.
  12. Replace the screw (M2.5x5) that secures the display-cable to the system board.
  13. Connect the display cable to the system board and close the latch.
  14. Align the screw holes on the USB Type-C bracket with the screw holes on the system board.
  15. Replace the two screws (M2x4) that secure the USB Type-C bracket to the system board.

Next steps

  1. Install the power-adapter port.
  2. Install the heat sink.
  3. Install the graphics-card fan.
  4. Install the processor fan.
  5. Install the rear-cover bracket.
  6. Install the rear cover.
  7. Install the wireless card.
  8. Install the hard drive.
  9. Install the memory modules.
  10. Install the M.2 2230 solid-state drive or the M.2 2280 solid-state drive in the SSD1 slot.
  11. Install the M.2 2230 solid-state drive or the M.2 2280 solid-state drive in the SSD2 slot.
  12. Install the 3-cell battery or the 6-cell battery.
  13. Install the base cover.
  14. Follow the procedure in After working inside your computer.

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