Replacing the system boardWARNING: Before working inside your computer, read the safetyinformation that shipped with your computer and follow the steps in Beforeworking inside your computer. After working inside your computer, followthe instructions in After working inside your computer. For more safety bestpractices, see the Regulatory Compliance home page at www.dell.com/regulatory_compliance.NOTE: Your computer’s Service Tag is stored in the system board. Youmust enter the Service Tag in the BIOS setup program after you replace thesystem board.NOTE: Replacing the system board removes any changes you have made tothe BIOS using the BIOS setup program. You must make the appropriatechanges again after you replace the system board.ProcedureCAUTION: To avoid damaging the system board, ensure that no cables areplaced under it.1 Connect the power-adapter port cable to the system board.2 Slide the I/O-board cable into the connector and press down the latch to securethe cable.3 Turn the system board over.4 Slide the ports on the system board into the slots on the palm-rest assembly.5 Align the screw hole on the system board with the screw hole on the palm-restassembly.6 Replace the screw that secures the system board to the palm-rest assembly.7 Adhere the I/O board cable to the palm-rest assembly.8 Slide the display cable into the connector and press down the latch to securethe cable to the system board.9 Turn the computer over and open the display.10 Slide the power-button board cable and touchpad cable into the respectiveconnectors and press down the latches to secure the cables.68
