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. You mustenter 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.Procedure1 Align the screw holes on the system board with the screw holes on the palm-restassembly.2 Replace the three screws (M2x2 Big Head) that secures the system board to thepalm-rest assembly.3 Slide the I/O-board cable into the system-board connector close the latch tosecure the cable.4 Adhere the tape that secures the I/O-board cable to the system board.5 Connect the power-adapter port-cable and the speaker cable to the systemboard.6 Connect the hard-drive cable to the system board.7 Slide the display cable and the touch-screen board-cable into their respectiveconnectors and close the latches to secure the cables.8 Adhere the tape that secures the display cable and touch-screen board-cable tothe system board.Post-requisites1 Replace the heat sink.74
