About this taskCAUTION: Before removing the system board, give sufficient time for the heat sink to cool down to avoid injury.NOTE: Replacing the system board removes any changes that you have made to the BIOS using the BIOS setup program.Make the appropriate changes again after you replace the system board.The following image indicates the connectors on your system-board assembly.1. Display cable2. Dynamic-display switch (DDS) cable3. Power-adapter port cable4. Right-fan cable5. Touchpad cable6. Keyboard cable7. Keyboard-controller board cable8. Left-fan cableThe following image indicates the location of the system board and provides a visual representation of the removal procedure.Removing and installing Field Replaceable Units (FRUs) 71

Dell NOT22109 Owner's Manual