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Chapter 4 Hardware and Software Configuration 95
About Power Supplies
A power distribution board delivers DC power for all internal system components.
The system’s power supplies plug in to connectors on this board, and when both
supplies are installed, they share equally in satisfying the power demands of the
system.
The system can accommodate one or two power supplies. Each power supply
provides up to 560 watts of DC power. All system configurations can operate with
only one power supply installed.
Power supplies are modular units, designed for fast, easy installation or removal,
even while the system is fully operational. Supplies are installed in bays at the front
of the system, as shown in the following figure.
You can use a second supply to provide redundancy, allowing the system to
continue operating should one of the power supplies fail. If your server includes a
second power supply, connect the second AC power cord to the left inlet (labeled 2
Power supply 1 Power supply 2 filler panel
AC present status (green)
Fault (amber)
DC status (green)
(Power supply 2 optional)