Step1.Istheserverpartofacluster?
•No:GotoStep2onpage119
.
•Yes:Shutdownallfailingserversthatarerelatedtothecluster.GotoStep2onpage119.
Step2.Completethefollowingsteps:
a.CheckthepowersupplyLEDs(see“Power-supplyLEDs”onpage129).
b.Turnofftheserverandallexternaldevices.
c.Checkallinternalandexternaldevicesforcompatibilityathttp://www.lenovo.com/us/en/
serverproven/.
d.Checkallcablesandpowercords.
e.Setalldisplaycontrolstothemiddlepositions.
f.Turnonallexternaldevices.
g.Turnontheserver.Iftheserverdoesnotstart,see“Troubleshootingbysymptom”onpage138.
h.Checkthesystem-errorLEDontheoperatorinformationpanel.Ifitislit,checkthelightpath
diagnosticsLEDs(see“Lightpathdiagnostics”onpage121).
i.Checkforthefollowingresults:
•SuccessfulcompletionofPOST(see“POST”onpage135
formoreinformation)
•Successfulcompletionofstartup,whichisindicatedbyareadabledisplayofthe
operating-systemdesktop
Step3.Isthereareadableimageonthemonitorscreen?
•No:Findthefailuresymptomin“Troubleshootingbysymptom”onpage138;ifnecessary,see
“Solvingundeterminedproblems”onpage158.
•Yes:RunDSA(see“RunningtheDSAPrebootdiagnosticprograms”onpage137).
–IfDSAreportsanerror,followtheinstructionsinAppendixC“DSAdiagnostictestresults”on
page815.
–IfDSAdoesnotreportanerrorbutyoustillsuspectaproblem,see“Solvingundetermined
problems”onpage158.
Diagnostictools
Thesectionintroducesavailabletoolstohelpyoudiagnoseandsolvehardware-relatedproblems.
•Lightpathdiagnostics
Uselightpathdiagnosticstodiagnosesystemerrorsquickly.See“Lightpathdiagnostics”onpage121
formoreinformation.
•Eventlogs
Theeventlogslisttheerrorcodesandmessagesthataregeneratedwhenanerrorisdetectedforthe
subsystemsIMM2,POST,DSA,andtheserverbaseboardmanagementcontroller.See“Eventlogs”on
page133
formoreinformation.
•IntegratedmanagementmoduleII
TheintegratedmanagementmoduleII(IMM2)combinesserviceprocessorfunctions,videocontroller,
andremotepresenceandblue-screencapturefeaturesinasinglechip.TheIMMprovidesadvanced
service-processorcontrol,monitoring,andalertingfunction.Ifanenvironmentalconditionexceeds
athresholdorifasystemcomponentfails,theIMMlightsLEDstohelpyoudiagnosetheproblem,
recordstheerrorintheIMMeventlog,andalertsyoutotheproblem.Optionally,theIMMalsoprovidesa
virtualpresencecapabilityforremoteservermanagementcapabilities.TheIMMprovidesremoteserver
managementthroughthefollowingindustry-standardinterfaces:
Chapter4.Troubleshooting119