Lenovo ThinkServer RD120 Hardware Maintenance Manual page 134

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ThinkServer RD120 server Machine Types 6444, 6445, 6446, and 6447: Hardware Maintenance Manual
Attention:
v Handle the microprocessor carefully. Dropping the microprocessor during
installation or removal can damage the contacts. Also, contaminants on the
microprocessor contacts, such as oil from your skin, can cause connection
failures between the contacts and the socket.
v Do not use excessive force when you press the microprocessor into the
socket.
v Make sure that the microprocessor is oriented and aligned and positioned in
the socket before you try to close the lever.
5. Align the microprocessor 1 with the socket (note the alignment marks 2
and the position of the notches 3 ); then, carefully place the microprocessor
on the socket. Close the microprocessor bracket frame.
Note: The microprocessor fits only one way on the socket.
6. Carefully close the microprocessor release lever to secure the microprocessor
in the socket.
7. Install a heat sink on the microprocessor.
Do not touch the thermal grease 1 on the bottom of the heat
Attention:
sink 2 or set down the heat sink after you remove the plastic cover. Touching
the thermal grease will contaminate it.
a. Make sure that the heat-sink release lever is in the open position.
b. Remove the plastic protective cover from the bottom of the heat sink.
c. Align the heat sink above the microprocessor with the thermal grease side
down.