IBM IntelliStation Z Pro 6223, Installation Manual

Page: 50 / 110

Attention:
1) Do not use excessive force when pressing the microprocessor into the
socket.
2) Make sure that the microprocessor is oriented and aligned correctly
with pin number 1 in the socket before you try to close the lever. The
following illustration shows the alignment marks for both
microprocessors and sockets.
Microprocessor 2
Microprocessor 1
Microprocessor
socket 2
Microprocessor
socket 1
Alignment marks
Heat-sink
release levers
Microprocessor-
release levers
Retention bracket
springs
d. Carefully close the lever to secure the microprocessor in the socket.
13. Install the heat sink on the microprocessor.
Thermal grease
Heat sink
a. Remove the plastic cover from the bottom of the heat sink.
Attention: Do not set the heat sink down after you remove the plastic
cover, and do not touch the thermal grease on the bottom of the heat sink.
Touching the thermal grease will contaminate it. If the thermal grease on
the microprocessor or heat sink becomes contaminated, contact your
service technician.
b. Align the heat sink (grease side down) over the microprocessor and
retention bracket.
c. Slide the rear flange of the heat sink rearward into the opening beneath the
retention-bracket spring.
d. Press down firmly on the front of the heat sink until it is seated correctly.
e. Secure the heat sink to the microprocessor by rotating the heat-sink
release lever to the closed position and hooking it underneath the tab on
the microprocessor socket.
f. Insert the voltage regulator module (VRM) into the VRM connector.
38
IntelliStation Z Pro Type 6223: Installation Guide