Replacing The Microprocessor Fan - Lenovo ThinkCentre M71z Hardware Maintenance Manual

9. Remove the three screws
of the computer.
Figure 23. Removing the three screws that secure the power supply
10. To reinstall the power supply, reinstall the two screws that secure the power cord connector to the
power connector bracket. See "Replacing the rear I/O assembly" on page 99.
11. Position the new power supply in the computer and align the three screw holes in the new power supply
with those in the computer main bracket. Install the three screws to secure the new power supply.
12. Route the new power cord connector cable, and then reinstall the rear I/O assembly. See "Replacing
the rear I/O assembly" on page 99.
13. Connect the new power supply cables to the power supply connectors on the system board. See
"System board parts and connectors" on page 88.
14. Reinstall the system board shield. See "Removing and reinstalling the system board shield" on page 101.
15. Reinstall the VESA mount bracket. See "Removing the VESA mount bracket" on page 98.
16. Reinstall the computer cover. See "Removing the computer cover" on page 94.
17. Go to "Completing the parts replacement" on page 124.

Replacing the microprocessor fan

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
This section provides instructions on how to replace the microprocessor fan.
To replace the microprocessor fan, do the following:
1 that secure the power supply, and then remove the power supply out
.
Chapter 8 Replacing FRUs
103