Power IndicatorPatternConditionNot lit Power is not connected.Green The handle/LED indicator lights green indicating that a valid power source is connected to thepower supply and that the power supply is operational.Flashing amber Indicates a problem with the power supply.CAUTION: When correcting a power supply mismatch, replace only the power supply withthe flashing indicator. Swapping the opposite power supply to make a matched pair canresult in an error condition and unexpected system shutdown. To change from a HighOutput configuration to a Low Output configuration or vice versa, you must power downthe system.CAUTION: AC power supplies support both 220 V and 110 V input voltages. When twoidentical power supplies receive different input voltages, they can output differentwattages, and trigger a mismatch.CAUTION: If two power supplies are used, they must be of the same type and have thesame maximum output power.CAUTION: Combining AC and DC power supplies is not supported and triggers a mismatch.Flashing green When hot-adding a power supply, this indicates that the power supply is mismatched with theother power supply (in terms of efficiency, feature set, health status, and supported voltage).Replace the power supply that has the flashing indicator with a power supply that matches thecapacity of the other installed power supply.Other Information You May NeedWARNING: See the safety and regulatory information that shipped with your system. Warranty information may beincluded within this document or as a separate document.• TheGetting Started Guide provides an overview of setting up your system, and technical specifications. Thisdocument is available online at www.dell.com/support/manuals.• The rack documentation included with your rack solution describes how to install your system into a rack, ifrequired.• Any media that ships with your system that provides documentation and tools for configuring and managing yoursystem, including those pertaining to the operating system, system management software, system updates, andsystem components that you purchased with your system.• For the full name of an abbreviation or acronym used in this document, see the Glossary at www.dell.com/support/manuals.NOTE: Always check for updates on www.dell.com/support/manuals and read the updates first because they oftensupersede information in other documents.15
