Release
lever
Release
lever
Microprocessor
retainer
i. Close the microprocessor retainer.
j. Carefully close the microprocessor release levers to the closed position to secure the
microprocessor in the socket. Make sure that you close the release lever on the left; then, close the
release lever on the right.
2. If you are installing a new heat sink, remove the plastic protective cover from the bottom of the heat sink.
if you are reinstalling a heat sink that you removed earlier, make sure that the thermal grease is still on
the bottom of the heat sink and on the top of the microprocessor.
Attention:
• If you are installing a new heat sink, 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. Touching the thermal grease will
contaminate it.
a. Position the heat sink over the microprocessor. The heat sink is keyed to assist with proper
alignment.
b. Align the screws on the heat sink with the holes on the heat sink retention module.
Heatsink
c. Press firmly on the center of the heat sink, then press firmly on the captive screws and tighten them
with a screwdriver, alternating between the screws in a figure-8 pattern, as indicated on the heat sink
label. Rotate each screw one full rotation at a time. Repeat this process until the screws are
tightened. You can damage the microprocessor if you tighten the screws on one side first, rather
than alternating between screws. Do not over tighten the screws with excessive force.
3. Reinstall the compute book cover (see “Replacing the compute book cover” on page 223).
4. Reinstall the compute book into the server.
5. Reconnect the power cords and any cables that you removed.
6. Turn on the peripheral devices and the server.
Thermal grease
This topic provides instructions about how to replace contaminated thermal grease on a microprocessor.
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