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Replace a heat sink

This task has instructions for replacing a heat sink. Heat sink replacement requires a Torx #T20 screwdriver.

Before installing some options, such as middle drive cage or GPU adapter, you might need to replace the heat sink with the required heat sink. For detailed information on heat sink selection, see Technical rules for processor and heat sink.

Make sure that all server power cords are disconnected from their power sources before performing this procedure.
  • The heat sink is necessary to maintain proper thermal conditions for the processor. Do not power on the server with the heat sink removed.

  • Do not touch the processor socket or processor contacts. Processor-socket contacts are very fragile and easily damaged. Contaminants on the processor contacts, such as oil from your skin, can cause connection failures.

  • Do not allow the thermal grease on the processor or heat sink to come in contact with anything. Contact with any surface can compromise the thermal grease, rendering it ineffective. Thermal grease can damage components, such as electrical connectors in the processor socket. Do not remove the grease cover from a heat sink until you are instructed to do so.

To replace the heat sink, complete the following steps:

  1. Remove the installed heat sink.
    1. Use a Torx #T20 screwdriver to loosen all the captive screws in the removal sequence shown on the heat-sink label.
    2. After loosening each captive screw, wait for about 30 seconds for the heat sink to loosen from the processor. Then, carefully lift the heat sink up.
    Figure 1. Removing a heat sink
    heat sink removal

  2. Install the new heat sink.
    1. Orient the heat sink with the screw holes on the processor plate. The captive screws on the heat sink should align with the screw holes on the processor plate.
    2. Tighten all the captive screws in the installation sequence shown on the heat-sink label.
    Figure 2. Installing a heat sink
    heat sink installation

After installing a heat sink,
  1. If there are memory modules to install, install them. See Install a memory module.

  2. Install other options you want to install.

Demo video

Watch the procedure on YouTube