Lenovo 7090 Computer Hardware User Manual


 
5. Lift the heat sink and fan assembly off the system board. Place the heat sink on its side so that the
thermal grease does not come in contact with anything.
6. To release the microprocessor 2 from the system board socket, lift the small handle 1 .
Important: Do not touch the gold contacts on the bottom of the microprocessor. If you must touch the
microprocessor, touch only the sides.
7. Lift the microprocessor straight up and out of the socket.
a. Your microprocessor and socket might look different than the one illustrated.
b. Note the orientation of the microprocessor in the socket. Look for the small triangle on one corner of
the microprocessor. This is important when reinstalling the microprocessor on the new system board.
c. Do not drop anything onto the microprocessor socket while it is exposed. The socket pins must be
kept as clean as possible.
8. Make sure that the small handle is in the raised position.
9. Holding the microprocessor with your ngers, position the microprocessor so that the small triangle on
one corner is aligned with the corresponding triangle on the microprocessor socket.
78 ThinkCentre Hardware Maintenance Manual