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NOTE: When selecting or upgrading your system configuration, verify the system power consumption with the Dell
Energy Smart Solution Advisor at dell.com/ESSA to ensure optimum power utilization.
Removing A Redundant AC Power Supply
CAUTION: Many repairs may only be done by a certified service technician. You should only perform
troubleshooting and simple repairs as authorized in your product documentation, or as directed by the online or
telephone service and support team. Damage due to servicing that is not authorized by Dell is not covered by your
warranty. Read and follow the safety instructions that came with the product.
CAUTION: The system requires at least one power supply for normal operation. On power-redundant systems,
remove and replace only one power supply at a time in a system that is powered on.
NOTE: For systems in rack mode, you may have to unlatch and lift the optional cable management arm if it
interferes with power supply removal. For information about the cable management arm, see the system’s rack
documentation.
1. Disconnect the power cable from the power source.
2. Remove the power cables from the cable strap of the power supply that you intend to remove.
3. Disconnect the power cable from the power supply.
4. Press the release latch and slide the power supply out of the chassis.
Figure 52. Removing and Installing a Redundant AC Power Supply
1. connector 2. redundant AC power supply
3. release latch 4. power supply handle
Installing A Redundant AC Power Supply
CAUTION: Many repairs may only be done by a certified service technician. You should only perform
troubleshooting and simple repairs as authorized in your product documentation, or as directed by the online or
telephone service and support team. Damage due to servicing that is not authorized by Dell is not covered by your
warranty. Read and follow the safety instructions that came with the product.
1. Verify that both the power supplies are the same type and have the same maximum output power.
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