Lenovo ThinkCentre M77 Hardware Maintenance Manual page 153

3. Locate the system board and disconnect all cables connected to the system board. See "Locating
parts on the system board" on page 77.
4. Remove the heat sink and fan assembly with the fan duct. See "Replacing the heat sink and fan
assembly" on page 140.
Note: Do not let the thermal grease on the bottom of the heat sink and fan assembly get in contact
with anything.
5. Lift the small handle
Figure 83. Accessing the microprocessor
6. Lift the microprocessor straight up and out of the microprocessor socket.
Figure 84. Removing the microprocessor
Notes:
a. Your microprocessor and socket might look different from the one illustrated.
.
Chapter 9 Replacing FRUs (Machine Types: 1996, 1997, 2002, 2010, 2208, 2209, 2221, 2224, 2226, and 2227.)
1 to release the microprocessor 2 secured on the system board.
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