Removing the System BoardWARNING: Before working inside your computer, read the safetyinformation that shipped with your computer and follow the steps inBefore Working Inside Your Computer. After working inside yourcomputer, follow the instructions in After Working Inside YourComputer. For more safety best practices, see the RegulatoryCompliance home page at dell.com/regulatory_compliance.NOTE: Your computer’s Service Tag is stored in the system board. Youmust enter the Service Tag in the system setup after you replace thesystem board.NOTE: Replacing the system board removes any changes you havemade to the BIOS using System Setup. Enter the Service Tag of yourcomputer in the BIOS and make the desired changes again after youreplace the system board.NOTE: Before disconnecting the cables from the system board, note thelocation of the connectors so that you can reconnect them correctlyafter you replace the system board.Prerequisites1 Remove the stand assembly.2 Remove the back cover.3 Remove the memory module(s).4 Remove the system-board shield.5 Remove the VESA-mount bracket.6 Remove the power-supply diagnostic board.7 Remove the I/O bracket.8 Remove the processor heat-sink.9 Remove the processor fan.10 Remove the processor.11 Remove the hard drive.12 Remove the wireless card.13 Remove the coin-cell battery.87
