Dell Precision 7720 Owner's Manual

Installing the right IO board

1. Connect the I/O board connector cable and slide the I/O board into its slot on the computer.
2. Replace the M2.5x5.0 screws to secure the I/O board to the computer.
3. Connect the speaker cable to the I/O board.
4. Install the:
   1. palmrest
   2. keyboard
   3. hard drive
   4. base cover
   5. battery
   6. battery cover
   7. SD card
5. Follow the procedure in After working inside your computer.