Diagnostic indicatorsThe diagnostic indicators on the system front panel display error status during system startup.NOTE: The diagnostic indicators are not present if the system is equipped with an LCD display.NOTE: The diagnostic indicators are present only on the 10-hard drive and the 24–hard drivesystems.NOTE: No diagnostic indicators are lit when the system is switched off. To start the system, plug itinto a working power source and press the power button.Table 6. Diagnostic indicatorsIcon Description Condition Corrective actionHealthindicatorIf the system is on, and ingood health, the indicatorlights solid blue.None required.The indicator blinks amber ifthe system is on or instandby, and if any errorexists (for example, a failedfan or hard drive).See the System Event Log or systemmessages for the specific issue. For moreinformation on error messages, see the DellEvent and Error Messages Reference Guideat Dell.com/esmmanuals.Invalid memory configurations can causethe system to halt at startup without anyvideo output. See Getting help.Hard-driveindicatorThe indicator blinks amber ifa hard drive experiences anerror.See the System Event Log to determine thehard drive that has an error. Run theappropriate Online Diagnostics test. Restartsystem and run embedded diagnostics(ePSA). If the hard drives are configured in aRAID array, restart the system and enter thehost adapter configuration utility program.ElectricalindicatorThe indicator blinks amber ifthe system experiences anelectrical error (for example,voltage out of range, or afailed power supply orvoltage regulator).See the System Event Log or systemmessages for the specific issue. If it is due toa problem with the power supply, check theLED on the power supply. Reseat the powersupply by removing and reinstalling it. If theproblem persists, see Getting help.Temperature indicatorThe indicator blinks amber ifthe system experiences athermal error (for example, atemperature out of range orfan failure).Ensure that none of the followingconditions exist:• A cooling fan is removed or has failed.• System cover, cooling shroud, EMI fillerpanel, memory-module blank, or back-filler bracket is removed.• Ambient temperature is too high.• External airflow is obstructed.16
