Processor and heat sink replacement (Trained technicians only)
Use this information to remove and install a processor or a heat sink.
Notes:
• The server supports two types of heat sinks: performance (T-shape) heat sink and closed loop heat sink.
For detailed information on heat sink selection, see
“Thermal rules” on page 54.
• This section is for processor and performance (T-shape) heat sink replacement. For the replacement of
closed loop heat sink (LACM module), refer to
“Lenovo Neptune (TM) liquid assisted cooling module
replacement (trained technicians only)” on page 117
.
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
.
• While replacing the old LACM module with a new one, you do not need to apply for a handle as the new
LACM module contains it. However, you must apply for a handle first if you need to install or remove the
processor board, I/O board, and PIB board when the server has an LACM module installed
.
Attention:
• Before you begin replacing a processor, make sure that you have an 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 147
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