Step1.Istheserverpartofacluster?
•No:GotoStep2.
•Y es:Shutdownallfailingserversthatarerelatedtothecluster.GotoStep2.
Step2.Completethefollowingsteps:
a.CheckthepowersupplyLEDs(see“Power-supplyLEDs”onpage60).
b.Turnofftheserverandallexternaldevices.
c.Checkallinternalandexternaldevicesforcompatibilityathttp://www.lenovo.com/
serverproven/.
d.Checkallcablesandpowercords.
e.Setalldisplaycontrolstothemiddlepositions.
f.Turnonallexternaldevices.
g.Turnontheserver.Iftheserverdoesnotstart,see“Troubleshootingbysymptom”onpage70.
h.Checkthesystem-errorLEDontheoperatorinformationpanelorLCDoperatingpanel
assembly(see“Operatorinformationpanel”onpage19or“LCDoperatingpanelassembly”on
page19
).
i.Checkforthefollowingresults:
•SuccessfulcompletionofPOST(see“POST”onpage67formoreinformation)
•Successfulcompletionofstartup,whichisindicatedbyareadabledisplayofthe
operating-systemdesktop
Step3.Isthereareadableimageonthemonitorscreen?
•No:Findthefailuresymptomin“Troubleshootingbysymptom”onpage70;ifnecessary,see
“Solvingundeterminedproblems”onpage89.
•Y es:RunDSA(see“RunningtheDSAPrebootdiagnosticprograms”onpage68).
–IfDSAreportsanerror,followtheinstructionsinAppendixC“DSAdiagnostictestresults”on
page949.
–IfDSAdoesnotreportanerrorbutyoustillsuspectaproblem,see“Solvingundetermined
problems”onpage89.
Diagnostictools
Thesectionintroducesavailabletoolstohelpyoudiagnoseandsolvehardware-relatedproblems.
•Lightpathdiagnostics
Uselightpathdiagnosticstodiagnosesystemerrorsquickly.See“Lightpathdiagnostics”onpage59
formoreinformation.
•Eventlogs
Theeventlogslisttheerrorcodesandmessagesthataregeneratedwhenanerrorisdetectedforthe
subsystemsIMM2.1,POST,DSA,andtheserverbaseboardmanagementcontroller.See“Eventlogs”on
page64
formoreinformation.
•IntegratedmanagementmoduleII
Theintegratedmanagementmodule2.1(IMM2.1)combinesserviceprocessorfunctions,videocontroller,
andremotepresenceandblue-screencapturefeaturesinasinglechip.TheIMMprovidesadvanced
service-processorcontrol,monitoring,andalertingfunction.Ifanenvironmentalconditionexceeds
athresholdorifasystemcomponentfails,theIMMlightsLEDstohelpyoudiagnosetheproblem,
recordstheerrorintheIMMeventlog,andalertsyoutotheproblem.Optionally,theIMMalsoprovidesa
Chapter3.Troubleshooting57