Replacing The Heat Sink Assembly - Lenovo ThinkCentre E63z Hardware Maintenance Manual

7. Remove the three screws that secure the system fan. Then, lift the system fan to remove it from the
chassis.
Figure 34. Removing the system fan
8. To install the new system fan, position the new system fan in the chassis so that the three screw holes in
the new system fan align with the corresponding holes in the chassis. Then, install the three screws to
secure the system fan to the chassis.
9. Route the cable of the new system fan, and then connect the cable to the system board. See "Locating
parts on the system board" on page 32.
10. Install the system-board shield. See "Removing and installing the system-board shield" on page 108.
What to do next:
• To work with another piece of hardware, go to the appropriate section.
• To complete the installation or replacement, go to "Completing the parts replacement" on page 129.

Replacing the heat sink assembly

CAUTION:
The heat sink assembly might be very hot. Before you open the computer cover, turn off the computer
and wait several minutes until the computer is cool.
Attention: Do not open your computer or attempt any repair before reading and understanding the Chapter
1 "Read this first: Important safety information" on page 1.
This section provides instructions on how to replace the heat sink assembly.
To replace the heat sink assembly, do the following:
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. Place a soft, clean towel or cloth on the desk or surface. Hold the sides of your computer and gently lay
it down so that the screen is against the surface and the cover is facing up.
.
Chapter 11 Installing or replacing hardware
119