Dell Inspiron 27 7720 All-in-One Owner's Manual page 86

Figure 58. Installing the system board
Steps
1. Place the system board on the display-assembly base.
2. Align the screw holes on the system board with the screw holes on the display-assembly base.
3. Replace the six screws (M3x5) that secure the system board to the display-assembly base.
4. Replace the solid-state drive screw mount (M3x4) that secures the system board to the display-assembly base.
5. Connect the display cable to the system board and close the latch to secure the cable.
6. Connect the power-button board cable to the system board and close the latch to secure the cable.
7. Connect the media-card reader cable to the system board and close the latch to secure the cable.
8. Connect the microphone-module cable to the system board.
9. Connect the speaker cable to the system board.
10. Connect the fan cable to the system board.
11. Connect the backlight cable to the system board.
12. Connect the camera cable to the system board.
13. Connect the touchscreen cable to the system board.
NOTE: This cable is only available on computers that support the touch option.
Next steps
1. Install the integrated heat sink
2. Install the M.2 2230 solid-state drive
3. Install the wireless card.
4. Install the memory module.
5. Install the system-board
6. Install the hard drive.
7. Install the I/O cover.
8. Install the back cover.
9. Install the stand.
86 Removing and installing Field Replaceable Units (FRUs)
or discrete heat sink.
or M.2 2280 solid-state
shield.
drive, as applicable.