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10. Close the microprocessor bracket frame; then, close the microprocessor
retention latch and lock it securely in place.
11. Close the microprocessor-release lever to secure the microprocessor.
12. Install a heat sink on the microprocessor.
Attention:
Do not touch the thermal grease on the bottom of the heat sink or
set down the heat sink after you remove the plastic cover. Touching the
thermal grease will contaminate it. If the thermal grease is contaminated, call
IBM service and support to request a replacement thermal grease kit. For
information about installing the replacement thermal grease, see the Problem
Determination and Service Guide.
a. Make sure that the heat-sink release lever is in the fully open position.
b. Remove the plastic protective cover from the bottom of the heat sink.
c. Align the heat sink above the microprocessor, using the alignment key on
the heat sink, with the thermal-grease side down.
Chapter 2. Installing optional devices
91
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