Lenovo ThinkCentre 7515 Hardware Maintenance Manual page 147

5. Disconnect the power supply assembly cables from all drives and from the
power connectors 1 and 2 .
Note: You might need to remove the hard disk drive to gain easy access to
the power connector 1 . See "Replacing the hard disk drive" on page
136.
Figure 58. Power connectors on the system board
6. Remove the power supply assembly cables from the cable clips and ties.
7. Slide the power supply assembly away from the chassis and remove it from
the computer.
Figure 59. Removing the power supply assembly
Chapter 9. Replacing FRUs - 607
141