Power Supply Reference

The server has two power supplies. This ensures reduncancy by allowing the server to operate when one of the power supplies fails. However, when the server is operating on one power supply, redundancy no longer exists, and the risk for an unexpected shut down and a loss of data is high. When a power supply or any component that is part of a redundant configuration fails, replace it immediately.

Power Supply Indicators

Each power supply contains an indicator panel. The following indicators are lit when a power supply fault is detected:

• Front and back Service Action Required indicators

• Rear PS Fault indicator on the front bezel of the server

• Service Action Required indicator on the faulty power supply

See Server Front Panel Features and Server Back Panel Features for locations of system indicators.

Callout Description 1 Amber Service Action Required 2 Green DC OK 3 Green AC OK

Service Action Required Indicator

Amber indicator. Indicates that the power supply is faulty and service-related action is required.

DC OK Indicator

Green indicator. Indicates that both DC outputs (3.3V standby and 12V main) are active and within acceptable ranges.

AC OK Indicator

Green or Amber indicator. Indicates:

• Green: AC voltage within operating range is applied to the power supply.

• Amber: AC range below operating range is applied to the power supply.