Lenovo ThinkCentre 8098 Hardware Maintenance Manual page 114

10. Lower the microprocessor retainer 3 and then secure the retainer with the
11. Slide the heat sink 2 under the lip and into position on the microprocessor.
12. If you are replacing the system board, continue at "Removing and replacing
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Hardware Maintenance Manual
lever 2 .
Note: If you are replacing the system board, a black protective cover on the
retainer protects the microprocessor socket. When you close the retainer,
remove the cover.
Lower the lever 1 to secure the heat sink.
Note: When you receive a new microprocessor, you will also receive a new
heat sink. You must install a new heat sink when replacing the
microprocessor.
the system board" on page 101.