Replacing The Heat Sink - Lenovo ThinkCentre M90 3244 User Manual

Figure 23. Removing the power supply assembly
10. Install and tighten the four screws to secure the power supply assembly.
11. Reconnect all the power supply assembly cables to the system board and each
12. Secure the power supply assembly cables with the cable clips and ties in the

Replacing the heat sink

28
User Guide
8. Slide the power supply assembly to the front of the computer and then lift it
out of the chassis.
9. Install the new power supply assembly into the chassis so that the screw holes
in the new power supply assembly align with those in the chassis.
Note: Use only the screws provided by Lenovo.
of the drives.
chassis.
What to do next:
v To work with another piece of hardware, go to the appropriate section.
v To complete the installation or replacement, go to "Completing the parts
replacement" on page 37.
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