Lenovo ThinkCentre M72z, Hardware Maintenance Manual, Page: 99 / 126

Figure 30. Removing the microprocessor
9. Make sure that the small handle is in the raised position and the microprocessor retainer is fully open.
10. Hold the new microprocessor and align the notches 2 on it with the alignment keys in the
microprocessor socket, or align the small triangle 1 on one corner of the new microprocessor with the
corresponding beveled corner of the microprocessor socket.
Figure 31. Installing the microprocessor
11. Lower the new microprocessor straight down into the microprocessor socket on the system board.
12. Close the microprocessor retainer and lock it into position with the small handle to secure the new
microprocessor in the socket.
13. Reinstall the heat sink assembly. See “Replacing the heat sink assembly” on page 89.
14. Reinstall the system board shield. See “Removing and reinstalling the system board shield” on page 86.
15. Go to “Completing the parts replacement” on page 109.
Chapter 9
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Replacing FRUs
93