1. Ensure that you read the Safety instructions.2. Keep the #2 Phillips screwdriver handy.3. If you are upgrading your system, download the latest system BIOS version from dell.com/supportand follow the instructions included in the compressed download file to install the update on yoursystem.NOTE: You can update the system BIOS using the Lifecycle Controller.4. Follow the procedure listed in Before working inside your system.5. If installed, remove the full-length PCIe card(s).6. Remove the cooling shroud.WARNING: The heat sink and processor are hot to the touch for some time after the system hasbeen powered down. Allow the heat sink and processor to cool before handling them.CAUTION: Never remove the heat sink from a processor unless you intend to remove theprocessor. The heat sink is necessary to maintain proper thermal conditions.Steps1. To remove the heat sink:a. Loosen one of the screws that secure the heat sink to the system board.Wait 30 seconds for the heat sink to loosen from the processor.b. Remove the screw diagonally opposite the screw you first removed.c. Repeat the procedure for the remaining two screws.d. Remove the heat sink.Figure 38. Removing and installing a processor heat sink1. captive screw (4) 2. heat sink3. processor socket 4. slot (4)94
