Lenovo ThinkCentre Types 8288 Hardware Replacement Manual page 18

Lenovo personal computer hardware replacement guide
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10
Hardware Replacement Guide
8. Remove the heat sink 1 from the system board by removing the four screws.
Then, carefully lift up the heat sink off the mounting brackets. Place the heat
sink on its side on a clean, flat surface so the thermal material on the bottom
of the heat sink does not touch the surface and become contaminated.
9. Release the lever 3 holding the microprocessor 2 and pivot the
microprocessor retainer 1 until it is open.

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