Remove a processor and heat sink

This task has instructions for removing an assembled processor and heat sink, known as a processor-heat-sink module (PHM). This task requires a Torx T30 driver. This procedure must be executed by a trained technician.

About this task

S002

CAUTION

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.

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.
• Each processor socket must always contain a cover or a PHM. When removing or installing a PHM, protect empty processor sockets with a cover.
• 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 the electrical connectors in the processor socket.
• Remove and install only one PHM at a time. If the system supports multiple processors, install the PHMs starting with the first processor socket.

Note

The heat sink, processor, and processor carrier for your system might be different from those shown in the illustrations.

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 preparation for this task.
   1. To replace a front PHM (processor 3 or processor 4), remove the following:
      1. Remove the front top cover. See Remove the front top cover.
      2. Remove the front air baffle. See Remove the front air baffle.
   2. To replace a rear PHM (processor 1 or processor 2), remove the following:
      1. Remove the front top cover. See Remove the front top cover.
      2. Remove the FHFL risers if necessary. See Remove a PCIe riser.
      3. Remove the rear air baffle. See Remove the rear air baffle.
2. Remove the PHM from the system board assembly.
   Note

   • Do not touch the contacts on the bottom of the processor.
   • Keep the processor socket clean from any object to prevent possible damages.
   1. Fully loosen the Torx T30 nuts on the PHM in the removal sequence shown on the heat-sink label.
   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 2. 2U Standard PHM removal
      
      

      Figure 3. 2U performance PHM removal