Dell Precision 7680 Service Manual page 68

Steps
1. Carefully pry the outside end of the GPU power cable connector head to unlock the GPU power cable connector from the
system board on top side of the system.
2. Slightly slide the GPU power cable connector outwards to disconnect the GPU power cable from the connector on the
system board.
3. Remove the four (M2x6) screws that secure the two PCB beam connectors to the system board and the GPU card.
NOTE: For models shipped with an integrated GPU card, the PCB beam connectors are on the bottom and top-right
side of the GPU card. For models shipped with a discrete GPU card, the PCB beam connectors are at the bottom side of
the GPU card.
4. Remove the PCB beam connectors from the computer.
5. Remove the (M2x5) screw that secures the display cable bracket in place.
6. Remove the display cable bracket from the computer.
7. Disconnect the display cable from the connector on the system board.
8. Disconnect the power button board FFC from the system board, touchpad FFC, USH daughter board FFC (for models
shipped with a USH daughter board), and SD card reader FPC cables.
9. Remove the seven (M2x5) screws that secure the system board to the computer chassis.
10. Flip the system board and disconnect the coin-cell battery cable from its connector on the system board.
11. Remove the system board from the computer.
After removing the system board from the system, the following items MUST be transferred to the replacement system
board:
68 Removing and installing components