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Install the heat sink

Use this information to install the heat sink. This procedure must be executed by a trained technician.

To avoid possible danger, read and follow the following safety statement.
  • S012
    hot surface
    CAUTION
    Hot surface nearby.
Before you install the heat sink, complete the following steps:
  1. Read the following sections to ensure that you work safely.

  2. Turn off the server. Disconnect the power cords and all external cables (see Power off the server).

  3. If there is any old thermal grease on the processor, gently clean the top of the processor using an alcohol cleaning pad. Dispose of the cleaning pad after all of the thermal grease is removed.

    Note
    If you are applying new thermal grease on the top of the processor, make sure to do it after the alcohol has fully evaporated.

  4. To ensure the best performance, check the manufacturing date on the new heat sink and make sure it does not exceed 2 years. Otherwise, wipe off the existing thermal grease and apply the new grease onto it for optimal thermal performance.

  5. Apply the thermal grease on the top of the processor with syringe by forming four uniformly spaced dots, while each dot consists of about 0.1 ml of thermal grease.

    Figure 1. Proper shape of the thermal grease
    Proper shape of the thermal grease

Procedure

  1. Align the triangular marks and guide pins on the processor socket with the heat sink; then, insert the heat sink into the processor socket.
    Attention
    To prevent damage to components, make sure that you follow the indicated tightening sequence.
  2. Fully tighten the screws in the installation sequence shown on the heat-sink label. Tighten the screws until they stop; then, visually inspect to make sure that there is no gap between the screw shoulder beneath the heat sink and the processor socket. (For reference, the torque required for the nuts to fully tighten is 1.4-1.6 newton-meters, 12-14 inch-pounds).
    Figure 2. Heat sink installation
    Heat sink installation
After you install the heat sink, complete the following steps:

  1. Install the node if needed (see Install a node).

  2. Reconnect power cords and all external cables.

Demo video