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8. Position the new heat sink and fan assembly on the microprocessor socket and
then position the clamp on the plastic retention bracket. Pivot the handle 1
to clamp the heat sink and fan assembly to the plastic retention bracket.
9. Connect the heat sink and fan assembly cable to the microprocessor fan
connector on the system board.
10. Go to “Completing the parts replacement” on page 45.
What to do next:
v To work with another option, go to the appropriate section.
v To complete the installation, go to “Completing the parts replacement” on
page 45.
Replacing the primary hard disk drive
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,goto:
http://www.lenovo.com/support
This section provides instructions on how to replace the primary hard disk drive.
To replace the primary hard disk drive:
1. Remove all media from the drives and turn off all attached devices and the
computer. Then, disconnect all power cords from electrical outlets and
disconnect all cables that are connected to the computer.
2. Remove the computer cover. See “Removing the computer cover” on page 16.
Figure 17. Replacing the heat sink and fan assembly
Chapter 2. Installing or replacing hardware 27