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Figure 17. Removing the microprocessor
10. Remove the protective cover that protects the gold contacts on the new
11. Hold the new microprocessor and align the small triangle on one corner of the
12. Lower the new microprocessor straight down into the microprocessor socket
13. Lower the small handle to secure the new microprocessor in the socket.
14. Reinstall the heat sink and fan assembly. See "Replacing the heat sink and fan
15. Reinstall any other parts or reconnect any other cables you removed.
16. Go to "Completing the FRU replacement" on page 116.
Replacing the system board
This section provides instructions on how to replace the system board.
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 removing the
computer cover.
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Hardware Maintenance Manual
d. Do not drop anything onto the microprocessor socket while it is exposed.
The socket pins must be kept as clean as possible.
9. Make sure that the small handle is in the raised position.
microprocessor.
new microprocessor with the corresponding small triangle on one corner of
the microprocessor socket.
on the system board.
assembly" on page 96.
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
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