Install a heat sink

Follow the instructions in this section to install a heat sink. The procedure must be executed by a trained technician.

About this task

S012

CAUTION

Hot surface nearby.

Attention

• Read Installation Guidelines and Safety inspection checklist to ensure that you work safely.
• Power off the server and peripheral devices and disconnect the power cords and all external cables. See Power off the server.
• Prevent exposure to static electricity, which might lead to system halt and loss of data, by keeping static-sensitive components in their static-protective packages until installation, and handling these devices with an electrostatic-discharge wrist strap or other grounding system.

Note

Make sure you have a Torx T20 screwdriver available to properly replace the component.

Procedure

1. Record the processor identification label.
   To replace a processor and reuse the heat sink:

   1. Remove the processor identification label from the heat sink and replace it with the new label that comes with the replacement processor.
   2. Wipe off old thermal grease on the heat sink with an alcohol cleaning pad.

   To replace a heat sink and reuse the processor:

   1. Remove the processor identification label from the old heat sink and place it on the new heat sink in the same location.
      Note

      If you are unable to remove the label and place it on the new heat sink, or if the label is damaged during transfer, write the processor serial number from the processor identification label on the new heat sink in the same location as the label would be placed using a permanent marker.
   2. Wipe off old thermal grease on the heat sink with an alcohol cleaning pad.
   3. Check whether the manufacturing date on the new heat sink exceeds two years.
      • If yes, wipe off the thermal grease on the new heat sink with an alcohol cleaning pad, and go to Step 2
      • If no, go to Step 3
2. Apply new thermal grease on the top of the processor with a syringe by forming four uniformly spaced dots, while each dot consists of about 0.1 ml of thermal grease.
   Figure 1. Thermal grease application
   
   
3. Install the heat sink.
   1. Align the triangular mark and screws on the heat sink with the triangular mark and threaded posts on the processor socket; then install the heat sink on the processor socket.
   2. Fully tighten all the screws in the installation sequence shown on the heat sink label.
      Note

      For reference, the torque required for the fasteners to fully tighten is 1.22-1.46 newton-meters, 10.8-13.0 inch-pounds.

      Figure 2. Heat sink installation