Lenovo ThinkCentre 3656 Hardware Maintenance Manual page 103

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.
Notes:
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 fingers, position the microprocessor so
that the small triangle on one corner is aligned with the corresponding
triangle on the microprocessor socket.
Chapter 8. Replacing FRUs - Tamdhu Computers
97