Lenovo System x3650 M5 Installation And Service Manual page 307

a. Close the microprocessor retainer on the microprocessor socket.
b. Identify which release lever is labeled as the first release lever to close and close it.
c. Close the second release lever on the microprocessor socket.
Step 11. Install the heat sink.
Attention:
• Do not set down the heat sink after you remove the plastic cover.
• Do not touch the thermal grease on the bottom of the heat sink after you remove the plastic
cover. Touching the thermal grease will contaminate it. See "Thermal grease" on page 297 for
more information.
Flange
Figure 260. Thermal grease
a. Remove the plastic protective cover from the bottom of the heat sink.
b. Grasp the heat sink firmly as the following illustration to avoid possible damage to the heat
sink.
Figure 261. Heat sink
c. Position the heat sink over the microprocessor. The heat sink is keyed to assist with proper
alignment.
Thermal grease
Heat sink
.
Chapter 5 Installing, removing, and replacing components
295