Table 8 Diagnostic indicators (continued)Icon Description Condition Corrective actionfailed power supply unit(PSU) or voltageregulator).Reseat the PSU. If the problempersists, see the Getting help section.Temperature indicatorThe indicator flashesamber if the systemexperiences a thermalerror (for example, theambient temperature isout of range or fanfailure).Ensure that none of the followingconditions exist:l A cooling fan has been removed orhas failed.l System cover, cooling shroud, EMIfiller panel, memory module blank,or back filler bracket is removed.l Ambient temperature is too high.l External airflow is obstructed.See the Getting help section.MemoryindicatorThe indicator flashesamber if a memory erroroccurs.Check the system event log or systemmessages for the location of the failedmemory. Reseat the memory module.If the problem persists, see the Gettinghelp section.Hard drive indicator codesEach hard drive carrier has an activity indicator and a status indicator. The indicators provideinformation about the current status of the hard drive. The activity LED indicates whether harddrive is currently in use or not. The status LED indicates the power condition of the hard drive.Figure 9 Hard drive indicators1. hard drive activity indicator2. hard drive status indicatorDell PowerEdge R430 system overviewDell PowerEdge R430 Owner's Manual 27
