Replacing The System Fan - Lenovo ThinkCentre M90 Hardware Maintenance Manual

Figure 14. Installing the socket cover
Note: Your microprocessor socket and cover might look slightly different from the illustration.
5. Carefully press the other side of the socket cover downwards until the socket cover snaps into place.
Figure 15. Securing the socket cover
6. Carefully check the four corners of the socket cover to make sure that the cover is secured in the
microprocessor socket.
7. Lower the microprocessor retainer and then lower the lever to secure the retainer. Make sure the
lever is locked into position.
8. 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 system fan

Attention
Do not open your computer or attempt any repair before reading and understanding the "Important safety
information" in the ThinkCentre Safety and Warranty Guide that came with your computer. To obtain a copy
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ThinkCentre Hardware Maintenance Manual