Lenovo ThinkStation E31 Hardware Maintenance Manual page 119

To replace the microprocessor, do the following:
1. Turn off the computer and disconnect all power cords from electrical outlets.
2. Remove the computer cover. See "Removing the computer cover" on page 86.
3. Lay the computer on its side for easier access to the system board.
4. Remove the heat sink and fan assembly. See "Replacing the heat sink and fan assembly" on page 97.
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.
5. Lift the small handle
Figure 47. Accessing the microprocessor
6. Lift the microprocessor straight up and out of the microprocessor socket.
Figure 48. Removing the microprocessor
Notes:
a. Your microprocessor and socket might look different from the one illustrated.
1
and open the retainer
.
Chapter 10 Replacing FRUs (for machine types: 2551, 2552, 2553, 2554, and 2555)
2
to access the microprocessor
3
.
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