Lenovo THINKCENTRE 4485 - Manual (Page 110)

1. Release the lever securing the microprocessor retainer and open the retainer to access the
microprocessor.
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. Note the orientation of the socket cover. Align the notches 1 of the microprocessor socket cover with
the alignment keys 2 of the microprocessor socket.
4. Install one side of the socket cover into the microprocessor socket as shown.
Figure 33. 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 34. 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.
102 ThinkCentre Hardware Maintenance Manual