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Installing System Components 51
Power Supplies
Your system supports two power supplies rated at an output of 1570 W. The second power supply serves
as a redundant, hot-plug power source.
NOTICE: The system is only in the redundant mode when two power supplies are installed and both power
supplies are connected to an AC power source. If some third-party components (such as PCI cards) not tested or
supported by Dell are installed, the power supplies may not be redundant at all input voltages.
NOTICE: Operating the system with only one power supply installed for extended periods of time can cause the
system to overheat.
Removing a Power Supply
1
Disconnect the power cable from the power source and the power supply you intend to remove.
2
Press the lever release latch, then open the release lever and slide the power supply out of the chassis.
See Figure 3-6.
NOTE: You may have to unlatch and lift the cable management arm if it interferes with power-supply removal.
For information about the cable management arm, see the system’s Rack Installation Guide.
Figure 3-6. Removing and Replacing a Power Supply
1 power supply 2 release lever 3 lever release latch
3
1
2