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1 Microprocessor release latch
2 Microprocessor bracket frame
3 Microprocessor
6. 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
Lenovo service to request a replacement thermal grease kit. For information
about installing the replacement thermal grease, see “Thermal grease” on
page 226.
1 Thermal grease
2 Heat sink
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, if one
is installed.
c. Position the heat sink above the microprocessor with the thermal-grease
side down.
Chapter 7. Installing optional devices and replacing customer replaceable units 223