Lenovo ThinkStation P510 Hardware Maintenance Manual page 182

1. Pivot the microprocessor retainer downward to close the retainer.
Figure 135. Closing the microprocessor retainer
2. Gently press down the small handle
down the small handle
Figure 136. Securing the microprocessor in the socket
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ThinkStation P510 and P710 Hardware Maintenance Manual
1 , and then push the handle inward to secure it. Then gently press
2 and push the handle inward to lock the microprocessor retainer into position.