Dell R805 owner manual Removing a Power Supply

NOTICE: To ensure proper system cooling, the power supply blank must be installed on the unoccupied power supply bay in a non-redundant configuration. See "Installing the Power Supply Blank" on page 80.

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 cable from the cable retention bracket.

4Release the locking tab on the left side of the power supply by pressing in toward the right, and rotate the power-supply handle up until the power supply is released from the chassis. See Figure 3-7.

5Pull the power supply straight out to clear the chassis.

78

Installing System Components