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12. If you are reinstalling a heat sink that was removed from the blade server,
13. If you are installing a new heat sink, complete the following steps.
36
BladeCenter HS23 Types 7875 and 1929: Installation and User's Guide
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.
d. If a socket cover is installed over the microprocessor retainer, it is released
as you close the retainer. Remove the socket cover from the blade server
and store it in a safe place.
complete the following steps.
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, 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. Make sure that the thermal material is still on the bottom of the heat sink
and on the top of the microprocessor.
b. Position the heat sink over the microprocessor. The heat sink is keyed to
assist with proper alignment.
c. Align and place the heat sink on top of the microprocessor in the retention
bracket, thermal material side down. Press firmly on the heat sink.
d. Align the screws on the heat sink with the holes on the heat-sink retention
module.
e. Press firmly on the captive screws and tighten them with a screwdriver,
alternating among the screws until they are tight. If possible, each screw
should be rotated two full rotations at a time. Repeat until the screws are
tight. Do not overtighten the screws by using excessive force. If you are
using a torque wrench, tighten the screws to 8.5 Newton-meters (Nm) to
13 Nm (6.3 foot-pounds to 9.6 foot-pounds).
Attention:
v Do not set down the heat sink after you remove the plastic cover.
v 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, contact your service
technician.
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.
c. Align and place the heat sink on top of the microprocessor in the retention
bracket, thermal material side down.
d. Press firmly on the heat sink.
e. Align the screws on the heat sink with the holes on the heat-sink retention
module.
f. Press firmly on the captive screws and tighten them with a screwdriver,
alternating among the screws until they are tight. If possible, each screw
should be rotated two full rotations at a time. Repeat until the screws are
tight. Do not overtighten the screws by using excessive force. If you are
using a torque wrench, tighten the screws to 8.5 Newton-meters (Nm) to 13
Nm (6.3 foot-pounds to 9.6 foot-pounds).
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