Computer Hardware User Manual
•Forintermittentproblems,checktheerrorlog;see“Eventlogs”onpage17and“Diagnosticprograms
andmessages”onpage64.
Performingthecheckoutprocedure
Toperformthecheckoutprocedure,completethefollowingsteps:
Step1.Istheserverpartofacluster?
•No:GotostepStep2“”onpage14
.
•Yes:Shutdownallfailingserversthatarerelatedtothecluster.GotostepStep2“”onpage14.
Step2.Completethefollowingsteps:
a.CheckthepowersupplyLEDs(see“Power-supplyLEDs”onpage63).
b.Turnofftheserverandallexternaldevices.
c.Checkallinternalandexternaldevicesforcompatibilityathttp://www.lenovo.com/support.
d.Checkallcablesandpowercords.
e.Setalldisplaycontrolstothemiddlepositions.
f.Turnonallexternaldevices.
g.Turnontheserver.Iftheserverdoesnotstart,see“Troubleshootingtables”onpage46.
h.Checkthesystem-errorLEDontheoperatorinformationpanel.Ifitisashing,checktheLEDs
onthesystemboard(see“System-boardLEDs”onpage112).
i.Checkforthefollowingresults:
•SuccessfulcompletionofPOST(see“POST”onpage19
formoreinformation)
•Successfulcompletionofstartup
Diagnosingaproblem
BeforeyoucontactLenovooranapprovedwarrantyserviceprovider,followtheseproceduresintheorder
inwhichtheyarepresentedtodiagnoseaproblemwithyourserver:
1.Determinewhathaschanged.
Determinewhetheranyofthefollowingitemswereadded,removed,replaced,orupdatedbeforethe
problemoccurred:
•Devicedrivers
•Serverrmware
•Hardwarecomponents
•Software
Ifpossible,returntheservertotheconditionitwasinbeforetheproblemoccurred.
2.Collectdata.
Thoroughdatacollectionisnecessaryfordiagnosinghardwareandsoftwareproblems.
a.Documenterrorcodesandsystem-boardLEDs.
•Systemerrorcodes:See“POSTerrorcodes”onpage19
forinformationaboutaspecicerror
code.
•See“System-boardLEDs”onpage112forthelocationofthesystem-boardLEDs.
•Softwareoroperating-systemerrorcodes:Seethedocumentationforthesoftwareor
operatingsystemforinformationaboutaspecicerrorcode.Seethemanufacturer'sWebsitefor
documentation.
14HardwareMaintenanceManual