Dell R410 owner manual Power Supplies, Removing a Redundant Power Supply

Power Supplies

Your system supports the following power supply modules:

•480W (non-redundant power supply)

•500W (redundant power supply)

If two power supplies are installed, the second power supply provides hot- swappable, power redundancy. In redundant mode, the system distributes the power load across both power supplies to maximize efficiency. When a power supply is removed with the system powered on, the full power load is picked up by the remaining power supply.

Removing a Redundant Power Supply

CAUTION: The system requires one power supply to operate the system normally. On power-redundant systems, remove and replace only one power supply at a time in a system that is powered on.

1Disconnect the power cable from the power source.

2Disconnect the power cable from the power supply and remove the Velcro straps that bundle and secure the system cables.

NOTE: 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.

3Pull the power supply straight out to release it from the power distribution board and clear the chassis.

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Installing System Components