Replacing The Microprocessor - Lenovo ThinkCentre M73 10B0 Hardware Maintenance Manual

11. Secure the power supply assembly cables with the cable clips and ties in the chassis.
What to do next:
• To work with another piece of hardware, go to the appropriate section.
• To complete the installation or replacement, go to "Completing the parts replacement" on page 131.

Replacing the microprocessor

Attention: Do not open your computer or attempt any repair before reading and understanding the
"Important safety information" on page 1.
CAUTION:
The heat sink and fan assembly might be very hot. Before you open the computer cover, turn off the
computer and wait several minutes until the computer is cool.
This section provides instructions on how to replace the microprocessor.
To replace the microprocessor, do the following:
1. Remove all media from the drives and turn off all attached devices and the computer. Then, disconnect
all power cords from electrical outlets and disconnect all cables that are connected to the computer.
2. Remove the computer cover. See "Removing the computer cover" on page 90.
3. Lay the computer on its side for easier access to the system board.
4. Locate the system board and disconnect all cables connected to the system board.
5. Remove the heat sink and fan assembly. See "Replacing the heat sink and fan assembly" on page 103.
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.
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ThinkCentre M73 Hardware Maintenance Manual