Replacing The Microprocessor - Lenovo 10AV User Manual

• To complete the installation or replacement, go to "Completing the parts replacement" on page 66.

Replacing the microprocessor

Attention: Do not open your computer or attempt any repair before reading and understanding the
"Important safety information" on page v.
This section provides instructions on how to replace the microprocessor.
CAUTION:
The heat sink and microprocessor might be very hot. Before you open the computer cover, turn off
the computer and wait several minutes until the computer is cool.
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 35.
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 50.
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 28. Accessing the microprocessor
6. Lift the microprocessor straight up and out of the microprocessor socket.
52
ThinkCentre E73 User Guide
1 and open the retainer 2 to access the microprocessor 3 .