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Replacing the power supply assembly
Attention
Do not open your computer or attempt any repair before reading the “Important safety
information” in the Safety and Warranty Guide that was included with your computer. To
obtain a copy of the Safety and Warranty Guide, go to the Support Web site at
http://www.lenovo.com/support.
To replace the power supply assembly:
1. Remove the four screws at the rear of the chassis that secure the power
supply. See Figure 16.
2. Open the computer cover. See “Opening the cover” on page 12.
3. Pivot the drive bay assembly upward to gain access to the system board. See
Figure 17.
4. Remove the hard disk drive. See “Replacing a hard disk drive” on page 27.
5. Locate the power-supply assembly. See “Locating components” on page 8.
Figure 16. Power-supply-retaining screws
Figure 17. Accessing the system board
Chapter 3. Installing options and replacing hardware 23