Dell OptiPlex 5055 Tower Owner's Manual
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NOTE: Amber LED blinking pattern : The pattern is 2 or 3 blinks followed by a short pause then X number of blinks up to 7. Therepeated pattern has a long pause inserted in the middle. Example 2,3 = 2 amber blinks, short pause, 3 amber blinks followed bylong pause then repeats.Table 32. Diagnostic power LED codesState State Name Blinking Amber Pattern Problem Description Suggested Resolution- - 2 blinks > short pause >1 blink > long pause >repeatsBad Motherboard Replace the motherboard- - 2 blinks > short pause >2 blinks > long pause >repeatsBad Motherboard, PowerSupply or Power SupplycablingIf customer can assist totroubleshoot, narrowdown the issue with PSUBIST Test, reseat cable.If nothing works, replacethe motherboard, powersupply or cabling- - 2 blinks > short pause >3 blinks > long pause >repeatsBad Motherboard,Memory or ProcessorIf customer can assist totroubleshoot, narrowdown the issue byreseating memory andswapping an availableknown good memory.If nothing works, replacethe motherboard,memory or processor- - 2 blinks > short pause >4 blinks > long pause >repeatsBad coin cell battery If customer can assist totroubleshoot, narrowdown the issue byswapping a known goodcoin cell battery ifavailable.If nothing works, replacethe coin cell batteryS1 RCM 2 blinks > short pause >5 blinks > long pause >repeatsBIOS Checksum Failure System is in RecoveryMode.Flash latest BIOS version.If problem persists,replace the motherboardS2 CPU 2 blinks > short pause >6 blinks > long pause >repeatsBad Processor CPU configurationactivity is in progress or aCPU failure wasdetected. Replace theprocessorS3 MEM 2 blinks > short pause >7 blinks > long pause >repeatsMemory failures Memory subsystemconfiguration activity is inprogress. Appropriatememory modules weredetected but a memoryfailure has occurred.Troubleshooting 75 |
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