Lenovo FM 300s Hardware Maintenance Manual page 99

Figure 22. Removing the screws to secure the power supply assembly
1. Press the retaining clip
Then, lift the power supply assembly out of the chassis.
Figure 23. Removing the power supply assembly
2. Ensure that the new power supply assembly is the correct replacement.
3. Install the new power supply assembly into the chassis so that the screw holes in the power supply
assembly align with those in the chassis.
4. Install and tighten the three screws to secure the power supply assembly.
Note: Use only screws provided by Lenovo.
5. Reconnect the power supply assembly cables to the system board. See "Parts on the system board"
on page 34.
6. Reinstall the storage drive. See "Replacing the storage drive" on page 85.
7. Reinstall the optical drive. See "Replacing the optical drive" on page 83.
8. Reinstall the front bezel. See "Replacing the front bezel" on page 82.
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 108.
1 downward and slide the power supply assembly to the front of the computer.
.
Chapter 9 Installing or replacing hardware
93