Dell R300 Power Supplies, Installing the Power Supply Fan Assembly, Removing a Power Supply

Installing the Power Supply Fan Assembly

1Connect the fan’s power cable to the FAN_MOD connector on the power distribution board. See Figure 3-11 for the location of the connector.

2Route the fan cable through the slot on the shroud partition.

3Close the power distribution board cover by rotating it downward until it seats directly over the board.

4Close the system. See "Opening and Closing the System" on page 68.

Power Supplies

Your system supports one or two power supplies rated at an output of 400 W. If only one power supply is installed, it must be installed in the left power supply bay (PS1). If two power supplies are installed, the second power supply provides hot-pluggable, 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.

NOTICE: To ensure proper system cooling, the power supply blank must be installed on the unoccupied power supply bay in a nonredundant configuration.

Removing a Power Supply

NOTICE: 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.

NOTE: On your rack system, 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 Installation Guide.

1If your system has a single power supply, turn off the system and all attached peripherals. For a redundant system, you can leave the system running and proceed to the next step.

2Disconnect the power cable from the power source.

3Disconnect the power cable from the power supply and remove the Velcro straps that bundle and secure the system cables.

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Installing System Components