Remove the processor and heat sink

The following illustration shows the components of the PHM.

Figure 1. PHM components

1 Heat sink	9 Clips to secure processor in carrier
2 Heat sink triangular mark	10 Processor ejector handle
3 Processor identification label	11 Carrier triangular mark
4 Nut and wire bail retainer	12 Processor heat spreader
5 Torx T30 nut	13 Thermal grease
6 Anti-tilt wire bail	14 Processor contacts
7 Processor carrier	15 Processor triangular mark
8 Clips to secure carrier to heat sink

Procedure

1. Make preparations for this task.
   1. Power off the node (see Power off the node); then, disconnect all external cables from the node.
   2. Remove the node from the chassis (see Remove a node from the chassis); then, carefully lay the node on a flat, static-protective surface, orienting the node with the front toward you.
      Note

      • When removing the node, note the node tray number and make sure to install the node in the same tray from which it was removed. Reinstalling the node into a different tray requires the node to be reconfigured.
      • For safety, make sure to hold the node with both hands when lifting the node.
   3. Remove the top cover (see Remove the top cover).
   4. For one-processor configuration, remove the 1U standard heat sink or 1U performance heat sink that is installed on the front of the node.
      Figure 2. PHM location for one-processor configuration
      
      
   5. For two-processor configuration, remove the 1U standard heat sink that is installed on the front of the node, or the 1U performance heat sink that is installed on the rear of the node.
      Figure 3. PHM location for two-processor configuration
      
      
2. Remove the PHM from the system board.
   Important

   • Do not touch the contacts on the processor contacts. Contaminants on the processor contacts, such as oil from your skin, can cause connection failures.

   • Keep the processor socket clean from any object to prevent possible damages.

   • 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 the electrical connectors in the processor socket.

   1. Fully loosen the Torx T30 nuts on the PHM in the removal sequence shown on the heat-sink label.
      Note

      For reference, the torque required for the screws to be fully tightened/removed is 10+/- 2.0 lbf-in, 1.1+/- 0.2 N-m.

      Attention

      To prevent damage to components, make sure to follow the indicated tightening/loosening sequence.
   2. Rotate the anti-tilt wire bails inward.
   3. Carefully lift the PHM from the processor socket. If the PHM cannot be fully lifted out of the socket, further loosen the Torx T30 nuts and try lifting the PHM again.
      Figure 4. Removal of the 1U Standard PHM
      
      

      Figure 5. Removal of the 1U Performance PHM from Processor 1
      
      

      Figure 6. Removal of the 1U Performance PHM from Processor 2
      
      
3. Remove the heat sink support bracket if necessary.
   1. Loosen the two screws that secure the support bracket.
   2. Hold the support bracket and remove it from the system board.
   Figure 7. Heat sink support bracket replacement