Dell Precision 7520 Owner's Manual

Removing the left Input-Output -IO board

1. Follow the procedure in Before working inside your computer.
2. Remove the:
   1. battery cover
   2. battery
   3. base cover
   4. hard drive
   5. keyboard
   6. palmrest
3. To remove I/O board:
   1. Remove the M2.5x5.0 screws that secure the thunderbolt bracket to the computer [1].
   2. Lift the bracket from the thunderbolt connector [2].
   3. Remove the M2.5x5.0 screws that secure the I/O board to the computer [3].
   4. Lift the I/O board upwards to and remove it from the computer.