IBM System x3550 M5 Type 5463 Installation And Service Manual page 273

Microprocessor
Figure 189. Microprocessor socket levers and retainer engagement
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.
9. Install the heat sink.
Attention:
v Do not set down the heat sink after you remove the plastic cover.
v 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 258 for more information.
Figure 190. Thermal grease
a. Remove the plastic protective cover from the bottom of the heat sink.
b. Position the heat sink over the microprocessor. The heat sink is keyed to
assist with proper alignment.
Microprocessor
release lever
Microprocessor
release lever
Chapter 5. Removing and replacing components
257