Lenovo Chapter 9. Replacing FRUs (Types 7390, 7391, 7392, 7396, 7397, and 7398) 127

Important
Touch only the sides of the microprocessor. Do not touch the gold
contacts on the bottom.
14. Lift the microprocessor 2 straight up and out of the socket.
Notes:
a. Note the orientation of the notches 1 on the microprocessor. This is
important when reinstalling the microprocessor on the new system board.
b. Do not drop anything onto the microprocessor socket while it is exposed.
The socket pins must be kept as clean as possible.
15. On the new system board, release the lever securing the microprocessor
retainer and then pivot the retainer until it is fully open.
Note: There will be a black plastic cover on the microprocessor retainer to
protect the socket on the new system board. Remove the black plastic
cover and place it on the microprocessor socket of the failing system
board.
16. Holding the microprocessor with your fingers, position the microprocessor so
that the notches on the microprocessor are aligned with the tabs in the
microprocessor socket.
Important
To avoid damaging the microprocessor contacts, do not tilt the
microprocessor when installing it into the socket.
Chapter 9. Replacing FRUs (Types 7390, 7391, 7392, 7396, 7397, and 7398) 127