Lenovo NeXtScale nx360 M4 Installation And Service Manual page 177

System x ibm nextscale nx360 m4
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Step 6.
Remove the heat sink.
Attention: Do not touch the thermal material on the bottom of the heat sink. Touching the thermal
material will contaminate it. If the thermal material on the microprocessor or heat sink becomes
contaminated, you must wipe off the contaminated thermal material on the microprocessor or heat
sink with the alcohol wipes and reapply clean thermal grease to the heat sink.
a.
Loosen the four screws on the corners of the microprocessor retainer.
b.
Lift the heat sink out of the server. After removal, place the heat sink (with the thermal grease
side up) on a clean, flat surface.
Figure 93. Heat sink removal
Step 7.
Open the microprocessor socket release levers and retainer.
Microprocessor
release lever
Figure 94. Microprocessor socket levers and retainer disengagement
a.
Identify which release lever is labeled as the first release lever to open and open it.
b.
Open the second release lever on the microprocessor socket.
c.
Open the microprocessor retainer.
Heat sink
Microprocessor
release lever
Microprocessor
.
Chapter 5
Removing and replacing components
163

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