IBM IntelliStation A Pro 6217 Service Manual page 136

Microprocessor
Figure 32. Installing a microprocessor and fan sink
10. Install the fan sink (see Figure 32).
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IBM IntelliStation A Pro Type 6217: Problem Determination and Service Guide
Retention
spring clips
9. Close the microprocessor-release lever to secure the microprocessor.
Attention:
v Do not disturb or contaminate the gray thermal material on the bottom of the
new fan sink. Doing so damages its heat-conducting capability and exposes
the new microprocessor to overheating.
v If you need to remove the fan sink after installing it, see the instructions
below.
a. Make sure that the two retention spring clips on the microprocessor
retention bracket (on the microprocessor board) are open and rotated to
either side as shown in the illustration above.
b. Remove the fan sink from its package and remove the cover from the
bottom of the fan sink. Make sure that the thermal material is still on the
bottom of the fan sink.
c. Remove the release liner and orient the fan sink above the microprocessor.
d. Make sure that you install the fan sink toward the rear of the computer so
that the front of the fan sink and the fan-sink screws do not come in
contact with any electrical components on the microprocessor board.
e. Press the fan sink into place; then, connect the fan-sink cable to the
microprocessor fan connector on the microprocessor board (see Figure 32
for the location of the connector).
Fan sink
Fan sink
cable
Microprocessor
orientation indicators
Microprocessor
socket
Fan sink connector