Lenovo x3650 M5 - Video Problems; Solving Power Problems

•FollowthesuggestedactionsintheorderinwhichtheyarelistedintheActioncolumnuntiltheproblemis
solved.
•Ifanactionstepisprecededby“(Trainedtechnicianonly),”thatstepmustbeperformedonlybyatrained
technician.
•Gotothesupportwebsiteathttp://www.lenovo.com/supporttocheckfortechnicalinformation,hints,tips,
andnewdevicedriversortosubmitarequestforinformation.
SymptomAction
AUSBdevicedoesnotwork.
1.Makesurethat:
•ThecorrectUSBdevicedriverisinstalled.
•TheoperatingsystemsupportsUSBdevices.
2.MakesurethattheUSBconfigurationoptionsaresetcorrectlyintheSetup
utility(see“UsingtheSetuputility”onpage46
formoreinformation).
3.IfyouareusingaUSBhub,disconnecttheUSBdevicefromthehuband
connectitdirectlytotheserver.
Videoproblems
Usethetroubleshootingtablestofindsolutionstoproblemsthathaveidentifiablesymptoms.
See“Monitorandvideoproblems”onpage87.
Solvingpowerproblems
Powerproblemscanbedifficulttosolve.Forexample,ashortcircuitcanexistanywhereonanyofthe
powerdistributionbuses.Usually,ashortcircuitwillcausethepowersubsystemtoshutdownbecauseof
anovercurrentcondition.
Todiagnoseapowerproblem,usethefollowinggeneralprocedure:
Step1.Turnofftheserveranddisconnectallpowercords.
Step2.Checkforloosecablesinthepowersubsystem.Alsocheckforshortcircuits,forexample,ifa
loosescrewiscausingashortcircuitonacircuitboard.
Step3.CheckthelitLEDsonthelightpathdiagnosticspanel.
Step4.IfthechecklogLEDonthelightpathdiagnosticspanelislit,checktheIMMeventlogforfaulty
Pwrrailandcompletethefollowingsteps.Table7“Componentsassociatedwithpowerrail
errors”onpage102
identifiesthecomponentsthatareassociatedwitheachPwrrailandthe
orderinwhichtotroubleshootthecomponents.
a.Disconnectthecablesandpowercordstoallinternalandexternaldevices(see“Internalcable
routingandconnectors”onpage127).Leavethepower-supplycordsconnected.
b.ForPwrrailAerror,completethefollowingsteps:
1.(Trainedtechnicianonly)Replacethesystemboard.
2.(Trainedtechnicianonly)Replacethemicroprocessor.
c.Forotherrailerrors(PwrrailAerror,seestep),removeeachcomponentthatisassociated
withthefaultyPwrrail,oneatatime,inthesequenceindicatedinTable7“Components
associatedwithpowerrailerrors”onpage102
,restartingtheservereachtime,untilthe
causeoftheovercurrentconditionisidentified.
Chapter3.Troubleshooting101