Figure 9. AC power supply status indicator1. AC power supply status indicator/handleConvention Power IndicatorPattern ConditionA Green A valid power source is connected to the power supply and thepower supply is operational.B Flashing green When updating the firmware of the power supply unit is beingupdated, the power supply handle flashes green.CAUTION: Do not disconnect the power cord or unplug thepower supply unit when updating firmware. If firmwareupdate is interrupted, the power supply units will notfunction. You must roll back the power supply firmware byusing Life cycle controller. For more information, see DellLifecycle Controller User’s Guide at dell.com/esmmanuals.C Flashing greenand turns offWhen hot-adding a power supply, the power supply handle flashesgreen five times at 4 Hz rate and turns off. This indicates that there isa power supply mismatch with respect to efficiency, feature set,health status, and supported voltage. Replace the power supply witha power supply that matches the capacity of the other power supply.NOTE: For AC power supplies, use only PSUs with the ExtendedPower Performance (EPP) label on the back. Mixing PSUs fromprevious generations of Dell PowerEdge servers can result in aPSU mismatch condition or failure to power on.D Flashing amber Indicates a problem with the power supply.21
