Replacing the heat sinkWARNING: 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.CAUTION: Incorrect alignment of the heat sink can damage the systemboard and processor.NOTE: The original thermal grease can be reused if the original systemboard and heat sink are reinstalled together. If either the system board orthe heat sink is replaced, use the thermal pad provided in the kit to ensurethat thermal conductivity is achieved.Procedure1 Align the screw holes on the heat sink with the screw holes on the system board.2 Replace the four screws (M2x3) that secure the heat sink to the system board insequential order (as indicated on the heat sink).Post-requisitesReplace the base cover.33