Troubleshooting your system 1135 If another sled is installed, connect the USB device to that sled. If the USB device works with a different sled, the first sled’s USBports may be faulty. See the Getting help section.Related linksGetting helpTroubleshooting an internal SD cardPrerequisitesCAUTION:Manyrepairsmayonlybedonebyacertifiedservicetechnician.Youshouldonlyperformtroubleshootingandsimplerepairs as authorized in your product documentation, or as directed by the online or telephone service and support team.Damage due to servicing that is not authorized by Dell is not covered by your warranty. Read and follow the safety instructionsthatareshippedwithyourproduct.NOTE:SDcardslot 2referredinthisprocedure isthe vFlash SDcardslot.YoucaninstallanSDcardinSDcardslot 2toenablethe Internal SD Card Redundancy option in the Integrated Devices screen of the System Setup.Steps1 Enter System Setup and ensure that the InternalSDCard Port is enabled.2 NotetheInternalSDCardRedundancyoptionenabledinthe IntegratedDevicesscreenoftheSystemSetup(MirrororDisabled).NOTE:IfyouretaintheoriginalsettingsoftheSDcardintheSystemSetup,thereplacedSDcardisenabledwhenyoureinstallthesledintheenclosure.3 Removethesledfromtheenclosure.4 Ifthe Internal SDCard Redundancy option in the Integrated Devices screen of the System Setup is set to Mirror mode and SDcard1hasfailed:a Remove the SD card from SD card slot 1.b Remove the SD card present in SD card slot 2 and insert it into SD card slot 1.c Install a new SD card in slot 2.5 Ifthe Internal SDCard Redundancy option in the Integrated Devices screen of the System Setup is set to Mirror mode and SDcard2 has failed, insert the new SD card into SD card slot 2.6 Ifthe InternalSDCard Redundancyoption in IntegratedDevicesscreen ofthe System Setup is set toDisabled, replace the failedSD card with a new SD card.7 Installthesledintheenclosure.8 Enter System Setup and ensure that the Internal SDCard Port option is enabled and Internal SDCard Redundancy option isset toMirror mode.9 Check if the SDcard is functioning properly.If the problem persists, see the Getting help section.Related linksGetting helpTroubleshooting processors1 Turn off the sled using the operating system commands or the CMC.2 Removethesledfromtheenclosure.3 Ensurethattheprocessor(s)andheatsink(s) areproperlyinstalled.4 Ifyoursystem hasonlyoneprocessorinstalled, ensurethatitisinstalledinthe primaryprocessorsocket(CPU1).5 Installthesledintheenclosure.6 Turn on the sled.7 Runtheappropriatediagnostictest.Formoreinformation,seetheUsingsystemdiagnosticssection.Ifthe problem persists, see the Getting help section.