4. Unlatch and lift the optional cable management arm if it interferes with PSU removal. Forinformation about the cable management arm, see the system’s rack documentation.StepsPress the release latch and pull the PSU out of the chassis.Figure 44. Removing and installing a redundant PSU1. release latch 2. power supply connector3. connector 4. power supply handleNext steps1. Install the power supply unit.2. If you are not immediately installing a power supply unit, install the power supply unit blank.Related TasksInstalling a redundant power supply unitInstalling the power supply unit blankInstalling a redundant power supply unitPrerequisitesCAUTION: Many repairs may only be done by a certified service technician. You should onlyperform troubleshooting and simple repairs as authorized in your product documentation, or asdirected by the online or telephone service and support team. Damage due to servicing that isnot authorized by Dell is not covered by your warranty. Read and follow the safety instructionsthat came with the product.1. Ensure that you follow the Safety instructions.2. Verify that both power supply units (PSUs) are of the same type and have the same maximum outputpower.NOTE: The maximum output power (shown in Watts) is listed on the PSU label.106