Lenovo ThinkCentre M93z 10AC User Manual page 81

CAUTION:
The heat sink and fan assembly for GPU might be very hot. Turn off the computer and wait three to
five minutes to let the computer cool before removing the computer cover.
To replace the heat sink and fan assembly for GPU, 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.
3. Remove the computer cover. See "Removing the computer cover" on page 46.
4. Locate the heat sink and fan assembly for GPU. See "Locating components" on page 15.
5. Note the routing of the GPU fan cable and then disconnect the GPU fan cable from the system board.
6. Follow the following sequence to remove the four screws that secure the heat sink and fan assembly
for GPU to the system board:
a. Partially remove screw
b. Partially remove screw
Note: Carefully remove the four screws from the system board to avoid any possible damage to the
system board. The four screws cannot be removed from the heat sink and fan assembly for GPU.
Figure 39. Removing the heat sink and fan assembly for GPU
7. Lift the failing heat sink and fan assembly for GPU off the system board.
Notes:
1 , then fully remove screw
3 , then fully remove screw
2 , and then fully remove screw
4 , and then fully remove screw
.
Chapter 5 Installing or replacing hardware
1 .
3 .
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