5.Install the DC power connector in the power supply.

CAUTION: When connecting the power wires, secure the wires with the strap to the power supply handle.

6.Connect the wires to a DC power source.

NOTE: When installing, hot-swapping, or hot-adding a new power supply, allow several seconds for the system to recognize the power supply and determine its status. The power-supply status indicator turns green to signify that the power supply is functioning properly.

Removing The Power Supply Blank

CAUTION: To ensure proper system cooling, the power supply blank must be installed in the second power supply bay in a non-redundant configuration. Remove the power supply blank only if you are installing a second power supply.

If you are installing a second power supply, remove the power supply blank in the bay by pulling outward on the blank.

Figure 54. Removing and Installing the Power Supply Blank

1.power supply blank

Installing The Power Supply Blank

NOTE: Install the power supply blank only in the second power supply bay.

To install the power supply blank, align the blank with the power supply bay and insert it into the chassis until it clicks into place.

System Battery

Replacing The System Battery

WARNING: There is a danger of a new battery exploding if it is incorrectly installed. Replace the battery only with the same or equivalent type recommended by the manufacturer. See your safety information for additional information.

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Dell E21S001, R820 owner manual System Battery, Removing The Power Supply Blank, Installing The Power Supply Blank