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Processor and heat sink replacement (trained technician only)

Follow instructions in this section to remove and install a processor and a heat sink.

Important
  • This task must be operated by trained technicians that are certified by Lenovo Service. Do not attempt to remove or install the part without proper training and qualification.
  • Before replacing a processor, check the current PSB fuse policy. See Service process before replacement at Service process for updating PSB fuse state.
  • After replacing a processor, ensure that the processor fuse status is expected without unexpected XCC event logs. See Service process after replacing a processor at Service process for updating PSB fuse state.
Attention
  • Before reusing a processor or heat sink, make sure you use Lenovo proven alcohol cleaning pad and thermal grease.
  • Each processor socket must always contain a cover or a processor. When replacing a processor, protect the empty processor socket 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.
The following illustration shows the components of the processor and heat sink.
Figure 1. PHM components
PHM components
1 Heat sink2 Processor identification label
3 Heat sink triangular mark4 Nut and wire bail retainer
5 Torx T30 nut6 Anti-tilt wire bail
7 Clips to secure carrier to a heat sink8 Processor carrier code marking
9 Processor carrier10 Clips to secure processor in a carrier
11 Carrier triangular mark12 Processor ejector handle
13 Thermal grease14 Processor heat spreader
15 Processor triangular mark16 Processor contacts
  • 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.
  • Separate the processor from carrier and heat sink
    This task has instructions for separating a processor and its carrier from an assembled processor and heat sink, known as a processor-heat-sink module (PHM). This procedure must be executed by a trained technician.
  • Install a processor and heat sink
    This task has instructions for installing 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.