Lenovo ThinkServer RD530 - Manual (Page 113)

To replace a hot-swap redundant power supply, do the following:
1. Locate the failing hot-swap redundant power supply in the rear of your server. Then, disconnect the
power cord from the failing hot-swap redundant power supply.
ID
Figure 56. Disconnecting the power cord
Chapter 6 . Installing, removing, or replacing hardware 101