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Hardware options installation 55
Redundant hot-plug power supply option
The server supports a second hot-plug power supply to provide redundant power to the system if the primary
power supply fails.
WARNING: To reduce the risk of electric shock or damage to the equipment:
• Do not disable the power cord grounding plug. The grounding plug is an important safety
feature.
• Plug the power cord into a grounded (earthed) electrical outlet that is easily accessible at all
times.
• Unplug the power cord from the power supply to disconnect power to the equipment.
• Do not route the power cord where it can be walked on or pinched by items placed against it.
Pay particular attention to the plug, electrical outlet, and the point where the cord extends from
the equipment.
WARNING: To reduce the risk of personal injury from hot surfaces, allow the power supply or
power supply blank to cool before touching it.
WARNING: To reduce the risk of electric shock or damage to the equipment, do not connect the
power cord to the power supply until the power supply is installed.
CAUTION: Always install either a hot-plug power supply or a power supply blank into each bay
to maintain proper airflow and cooling in the server. Improper airflow can lead to thermal
damage.
Power supply configuration
CAUTION: All power supplies installed in the server must have the same output power capacity.
Verify that all power supplies have the same part number and label color. The system becomes
unstable and may shut down when it detects mismatched power supplies.
Label color Output
Blue
460W
Orange
750W
Green
1,200W
Hot-plug power supply calculations
For more information on the hot-plug power supply and calculators to determine server power consumption
in various system configurations, refer to the HP Enterprise Configurator website
(http://h30099.www3.hp.com/configurator/).