Removing 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.NOTE: Before disconnecting the cables from the system board, note the location of the connectors so that you can reconnectthe cables correctly after you replace the system board.Prerequisites1 Remove the base cover.2 Remove the battery.3 Remove the memory modules.4 Remove the wireless card.5 Remove the fan.6 Remove the solid-state drive/Intel Optane memory module.7 Remove the heat sink.Procedure1 Peel the tape off the I/O-board connector.2 Open the latch and disconnect the I/O-board cable from the system board.3 Disconnect the power-adapter port cable from the system board.4 Remove the two screws (M2x3) that secure the USB Type-C port bracket to the system board.3658 Removing the system board