a. Fully loosen all the screws on the heat sink in the removal sequence shown on the heat-
sink label.
b.
Carefully lift the heat sink from the processor socket.
After you finish
• If you are replacing a heat sink, install a new heat sink. See
“Install a heat sink” on page 113.
• If you are replacing a processor, remove the processor. See
“Remove a processor” on page 110.
• If you are instructed to return the component or optional device, follow all packaging instructions, and use
any packaging materials for shipping that are supplied to you.
Remove a processor
Use this information to remove a processor. This task requires a Torx T20 screwdriver. The procedure must
be executed by a trained technician.
About this task
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.
Attention:
• Read
“Installation Guidelines” on page 35 and “Safety inspection checklist” on page 36 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” on page 44.
• 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.
Watch the procedure
A video of this procedure is available at YouTube:
https://www.youtube.com/playlist?list=PLYV5R7hVcs-
CTkyVDu-5Lhy1r9G-4PQGl
.
Procedure
Figure 71. Processor removal
110 ThinkSystem SR645 V3 User Guide
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