Processor and heat sink replacement (trained technician only)
Follow instructions in this section to remove and install a processor or a heat sink.
Important:
• This task must be operated by trained technicians that are certified by Lenovo Service. Do no attempt to
remove or install it 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
.
The server supports two types of heat sinks. Depending on the specific type, the heat sink on your server
might be different from that shown in the illustrations. For detailed information on heat sink selection, see
“Thermal rules” on page 59.
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.
Chapter 5. Hardware replacement procedures 175
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