Hardware options installation 47
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 to operate in redundant mode. Verify that all power supplies have the same part
number and label color. When the system detects mismatched power supplies, the system
displays POST messages, does not power on the new power supply, and remains in non-
redundant mode.
Label color Output
Blue 460 W
Orange 750 W
Installing the redundant hot-plug power supply option
WARNING: To reduce the risk of personal injury or damage to the equipment, the installation
of power supplies should be performed only by individuals who are qualified in servicing
server equipment and trained to deal with products capable of producing hazardous energy
levels.
WARNING: To reduce the risk of personal injury from hot surfaces, observe the thermal labels
on each power supply or module.
