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Remove the processor heat sink (trained technician only)

Follow instructions in this section to remove the processor heat sink. This procedure must be executed by a trained technician.

About this task


Removing and installing this component requires trained technicians. Do not attempt to remove or install the part without proper training.

To avoid potential danger, make sure to read and follow the safety information.

  • S002
    disconnect all power
    The power-control button on the device and the power switch on the power supply do not turn off the electrical current supplied to the device. The device also might have more than one power cord. To remove all electrical current from the device, ensure that all power cords are disconnected from the power source.
  • S012
    hot surface
    Hot surface nearby.


  1. Make preparations for this task.
    1. If applicable, unlock or remove any locking device that secures the top cover, such as a Kensington lock; then, remove the top cover (see Remove the top cover).
    2. Remove the air baffle (see Remove the air baffle).
    3. Remove all the memory modules (see Remove a memory module).
  2. Remove the processor heat sink.
    • Avoid touching 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.

    • Prevent the thermal grease on the processor or heat sink from coming in contact with anything. Contact with any surface can compromise the thermal grease, rendering it ineffective. Thermal grease can damage components, such as the electrical connectors in the processor socket.

    1. Use a Phillips screwdriver to fully loosen the captive screws from the heat sink in the removal sequence shown on the heat-sink label as well as indicated in the illustration below.
    2. Lift the heat sink up evenly to remove it from the node.

      To prevent damage to the processor, make sure to follow the loosening sequence indicated in the illustration.

      Figure 1. Removal of the processor heat sink
      Removing the heat sink


After this task is completed