Lenovo ThinkServer 1045 - Universal Serial Bus (USB) Port Problems; Solving Power Problems; Solving Ethernet Controller Problems

UniversalSerialBus(USB)portproblems
•FollowthesuggestedactionsintheorderinwhichtheyarelistedintheActioncolumnuntiltheproblemis
solved.
•SeethepartslistingintheHardwareMaintenanceManualtodeterminewhichcomponentsarecustomer
replaceableunits(CRUs)andwhichcomponentsareeldreplaceableunits(FRUs).
•Ifanactionstepisprecededby“(Trainedservicetechnicianonly),”thatstepmustbeperformedonlyby
atrainedservicetechnician.
SymptomAction
AUSBdevicedoesnotwork.
1.Makesurethat:
•ThecorrectUSBdevicedriverisinstalled.
•TheoperatingsystemsupportsUSBdevices.
•AstandardPS/2keyboardormouseisnotconnectedtotheserver.Ifitis,a
USBkeyboardormousewillnotworkduringthePOST.
2.MakesurethattheUSBcongurationoptionaldevicesaresetcorrectlyinthe
SetupUtilityprogram.
3.IfyouareusingaUSBhub,disconnecttheUSBdevicefromthehuband
connectitdirectlytotheserver.
Solvingpowerproblems
Powerproblemscanbedifculttosolve.Forexample,ashortcircuitcanexistanywhereonanyofthe
powerdistributionbuses.Usually,ashortcircuitwillcausethepowersubsystemtoshutdownbecauseof
anovercurrentcondition.Todiagnoseapowerproblem,usethefollowinggeneralprocedure:
1.Turnofftheserveranddisconnectallacpowercords.
2.Checkforloosecablesinthepowersubsystem.Alsocheckforshortcircuits,forexample,ifaloose
screwiscausingashortcircuitonacircuitboard.
3.Removetheadaptersanddisconnectthecablesandpowercordstoallinternalandexternaldevices
untiltheserverisattheminimumcongurationthatisrequiredfortheservertostart(see“Solving
undeterminedproblems”onpage99fortheminimumconguration).
4.Reconnectallacpowercordsandturnontheserver.Iftheserverstartssuccessfully,replacethe
adaptersanddevicesoneatatimeuntiltheproblemisisolated.
Iftheserverdoesnotstartfromtheminimumconguration,replacethecomponentsintheminimum
congurationoneatatimeuntiltheproblemisisolated.
SolvingEthernetcontrollerproblems
ThemethodthatyouusetotesttheEthernetcontrollerdependsonwhichoperatingsystemyouareusing.
Seetheoperating-systemdocumentationforinformationaboutEthernetcontrollers,andseetheEthernet
controllerdevice-driverreadmele.
Trythefollowingprocedures:
•Makesurethatthecorrectdevicedrivers,whichcomewiththeserver,areinstalledandthattheyareat
thelatestlevel.
•MakesurethattheEthernetcableisinstalledcorrectly.
–Thecablemustbesecurelyattachedatallconnections.Ifthecableisattachedbuttheproblem
remains,tryadifferentcable.
–IftheEthernetcontrollerissettooperateat100Mbps,youmustuseCategory5cabling.
98ThinkServerInstallationandUserGuide