IBM BladeCenter HS23 Installation And User Manual page 47

Attention:
v Do not press the microprocessor into the socket.
v Do not touch exposed pins of the microprocessor socket.
v Make sure that the microprocessor is oriented and aligned correctly in
the socket before you try to close the microprocessor retainer.
v Do not touch the thermal material on the bottom of the heat sink or on
top of the microprocessor. Touching the thermal material will
contaminate it.
11. Close the microprocessor socket release levers and retainer:
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.
12. If you are reinstalling a heat sink that was removed from the blade server,
complete the following steps.
Do not touch the thermal material on the bottom of the heat
Attention:
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. 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).
13. If you are installing a new heat sink, complete the following steps.
Chapter 3. Installing options
33