Computer Hardware User Manual

Chapter4.Diagnostics
Thischapterdescribesthediagnostictoolsthatareavailabletohelpyousolveproblemsthatmightoccurin
theserver.
Diagnostictools
Thefollowingtoolsareavailabletohelpyoudiagnoseandsolvehardware-relatedproblems:
•POSTerrormessagesanderrorlogs
Thepower-onself-test(POST)generatesmessagestoindicatesuccessfultestcompletionorthe
detectionofaproblem.See“POST”onpage19,“Eventlogs”onpage17,and“POSTerrorcodes”on
page19
formoreinformation.
•Troubleshootingtables
Thesetableslistproblemsymptomsandactionstocorrecttheproblems.See“Troubleshootingtables”
onpage46formoreinformation.
•DynamicSystemAnalysis(DSA)Prebootdiagnosticprograms
TheDSAPrebootdiagnosticprogramsprovideproblemisolation,congurationanalysis,anderrorlog
collection.Thediagnosticprogramsaretheprimarymethodoftestingthemajorcomponentsoftheserver
andarestoredinintegratedUSBmemory.Thediagnosticprogramscollectthefollowinginformation
abouttheserver:
–Systemconguration
–Networkinterfacesandsettings
–Installedhardware
–Serviceprocessorstatusandconguration
–Vitalproductdata,rmware,andUEFIconguration
–Harddiskdrivehealth
–RAIDcontrollerconguration
–Controllerandserviceprocessoreventlogs,includingthefollowinginformation:
–Systemerrorlogs
–Temperature,voltage,andfanspeedinformation
–Self-monitoringAnalysis,andReportingTechnology(SMART)data
–Machinecheckregisters
–USBinformation
–Monitorcongurationinformation
–PCIslotinformation
Thediagnosticprogramscreateamergedlogthatincludeseventsfromallcollectedlogs.Theinformation
iscollectedintoalethatyoucansendtoLenovoserviceandsupport.Additionally,youcanviewthe
serverinformationlocallythroughageneratedtextreportle.Youcanalsocopythelogtoremovable
mediaandviewthelogfromaWebbrowser.See“Runningthediagnosticprograms”onpage65
for
moreinformation.
•ServerLEDs
UsetheLEDsontheservertodiagnosesystemerrorsquickly.See“System-boardLEDs”onpage112
formoreinformation.
Eventlogs
Errorcodesandmessagesaredisplayedinthefollowingtypesofeventlogs:
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