Steps1. Align the screw holes on the heat sink with the screw holes on the system board.2. In sequential order (as indicated by the numbers on the heat sink), replace the six screws (M2x6.5) that secure the heat sink to thesystem board.Next steps1. Install the base cover.2. Follow the procedure in After working inside your computer.I/O boardRemoving the I/O boardPrerequisites1. Follow the procedure in Before working inside your computer.2. Remove the base cover.About this taskThe following image indicates the location of the I/O board and provides a visual representation of the removal procedure.Removing and installing components 33

Dell XPS 17 9700 Service Manual