Lenovo J SERIES 3000 - Manual (Page 110)

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.
17. Lower the microprocessor straight down into the system board socket of the new system board.
104 Hardware Maintenance Manual Lenovo 3000 J Series