IBM BladeCenter HS21 Series Problem Determination And Service Manual page 120

2. Install a heat sink on the microprocessor.
3. Install the bezel assembly (see "Installing the bezel assembly" on page 84).
4. Install the Memory and I/O Expansion Blade, if one was removed from the blade
5. Install the blade server cover (see "Installing the blade server cover" on page
6. Install the blade server into the BladeCenter unit (see "Installing the blade
104
BladeCenter HS21 Types 1885 and 8853: Problem Determination and Service Guide
Attention:
v Do not press the microprocessor into the socket.
v Make sure that the microprocessor is oriented and aligned correctly in the
socket before you try to close the microprocessor retainer.
f. Carefully close the microprocessor retainer.
g. Rotate the locking lever on the microprocessor socket to the closed and
locked position. Make sure that the lever is secured in the locked position by
the tab on the microprocessor socket.
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.
Heat sink Thermal material
a. Remove the plastic protective cover from the bottom of the heat sink.
b. Make sure that the thermal material is still on the bottom of the heat sink;
then, 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.
c. Align the two screws on the heat sink with the holes on the heat-sink
retention module.
d. Press firmly on the captive screws and tighten them with a screwdriver,
alternating between 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 to 13 Newton-meters (Nm)
(6.3 to 9.6 inch-pounds).
server in order to replace the microprocessor and heat sink (see "Installing an
expansion unit" on page 83).
81).
server in a BladeCenter unit" on page 78).