Replacing the system boardWARNING: Before working inside your computer, read the safety information that shipped with your computer and follow thesteps in Before working inside your computer. After working inside your computer, follow the instructions in After working insideyour computer. For more safety best practices, see the Regulatory Compliance home page at www.dell.com/regulatory_compliance.NOTE: Your computer’s Service Tag is stored in the system board. You must enter the Service Tag in the BIOS setup programafter you replace the system board.NOTE: Replacing the system board removes any changes you have made to the BIOS using the BIOS setup program. You mustmake the appropriate changes again after you replace the system board.Procedure1 Align the screw holes on the system board with the screw holes on the display-assembly base.2 Replace the nine screws (M3x5) that secure the system board to the display-assembly base.3 Connect the power-adapter cable to the system board.4 Connect the display-backlit cable to the system board.5 Connect the camera cable to the system board.6 Connect the side-I/O cable to the system board.7 Connect the side-I/O power cable to the system board.8 Connect the headset-port board cable to the system board.9 Connect the speaker cable to the system board.10 Connect the microphones cable to the system board.11 Connect the power-button board cable to the system board and close the latch to secure the cable.12 Connect the display cable to the system board and adhere the tape that secures the display cable to the system board.13 Connect the touchscreen cable to the system board.4572 Replacing the system board
