Replacing The Front Audio And Usb Assembly - Lenovo ThinkCentre M72e Hardware Maintenance Manual

2. Grasp the microprocessor on the sides and lift it straight up and out of the socket. Do not touch the
contacts on the microprocessor socket.
3. Lower the microprocessor retainer, and then lower the lever to secure the retainer. Ensure that the
lever is locked into position.
4. Note the orientation of the socket cover, and install one side of the socket cover into the microprocessor
socket.
Figure 86. Installing one side of the socket cover into the microprocessor socket
Note: Your microprocessor socket and cover might look slightly different from the illustration.
5. Carefully press the other side of the socket cover downward until the socket cover snaps into position.
6. Carefully check the four corners of the socket cover to make sure that the cover is secured in the
microprocessor socket.
7. Follow any additional instructions included with the replacement part you received.
Note: If your system board has two microprocessor sockets, be sure to install a socket cover for each
microprocessor socket.

Replacing the front audio and USB assembly

Attention:
Do not open your computer or attempt any repair before reading and understanding the "Important safety information"
on page 1.
This section provides instructions on how to replace the front audio and USB assembly.
To replace the front audio and USB assembly, 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 120.
3. Remove the front bezel. See "Removing and reinstalling the front bezel" on page 120.
4. Pivot the optical drive bay upward and disconnect the front audio and USB assembly cables from the
system board and note the cables routing. See "Locating parts on the system board" on page 73.
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ThinkCentre Hardware Maintenance Manual