Replacing The Microprocessor - Lenovo ThinkCentre 3656 Hardware Maintenance Manual

17. Lower the microprocessor straight down into the system board socket of the
18. Lower the small handle to secure the microprocessor in the socket.
19. Position the heat sink on the microprocessor socket and then position the
20. Connect the heat sink and fan assembly cable to the system board. See
21. Install the new system board into the chassis and align the screw holes with
22. Pivot the hard disk drive back into position.
23. Connect the power and signal cables to the hard disk drive.
24. Connect all remaining cables to the system board. See "Locating parts on the
25. Go to "Completing the FRU replacement" on page 112.

Replacing the microprocessor

CAUTION:
The heat sink and microprocessor might be very hot. Turn off the computer and
wait three to five minutes to let the computer cool before opening the computer
cover.
This section provides information on how to remove and replace the
microprocessor.
To remove or replace the microprocessor, do the following:
new system board.
clamp on the plastic retention bracket. Pivot the handle to clamp the heat sink
to the plastic retention bracket.
"Locating parts on the system board" on page 88.
those in the chassis. Insert and tighten the screws that secure the system
board.
system board" on page 88.
Attention
Do not open your computer or attempt any repair before reading and understanding the
"Important safety information" in the ThinkCentre Safety and Warranty Guide that came with
your computer. To obtain a copy of the ThinkCentre Safety and Warranty Guide, go to:
http://www.lenovo.com/support
1. Remove the cover. See "Removing the cover" on page 86.
Chapter 8. Replacing FRUs - Tamdhu Computers
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