cover and place it on the microprocessor socket of the failing system
board when you complete this procedure.
13. 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 on the new system board.
Important

To avoid damaging the microprocessor contacts, do not tilt the

microprocessor when installing it into the socket.

14. Lower the microprocessor straight down into the system board socket of the
new system board.
15. Lower the microprocessor retainer.
16. Lock the retainer with the small handle to secure the microprocessor in the
socket.
17. The new retention bracket has plastic one-way rings on the posts that insert
into the rear of the new system board. Install the new retention bracket by
aligning the posts on the module with the holes in the system board and
pushing the posts through the holes until the retention bracket is secure.
18. Install the heat sink and fan assembly on the new system board.
19. Install the new system board into the chassis and align the screw holes with
those in the chassis. Insert and tighten the screws that secure the system
board.
20. Connect all the cables to the system board. See “Identifying parts on the
system board” on page 87.

21. Go to “Completing the FRU replacement” on page 112.

96 Lenovo 3000 J Series