Lenovo ThinkCentre M77 Hardware Maintenance Manual (HMM) - ThinkCentre M77 - Page 102
to release the microprocessor
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4. Locate the system board and disconnect all cables connected to the system board. See "Locating parts on the system board" on page 77. 5. Remove the heat sink and fan assembly. See "Replacing the heat sink and fan assembly" on page 95. Note: Place the heat sink and fan assembly on its side so that the thermal grease on the bottom of it does not get in contact with anything. 6. Lift the small handle 1 to release the microprocessor 2 secured on the system board. Figure 30. Accessing the microprocessor 7. Lift the microprocessor straight up and out of the microprocessor socket. Figure 31. Removing the microprocessor Notes: a. Your microprocessor and socket might look different from the one illustrated. 98 ThinkCentre Hardware Maintenance Manual