Lenovo x3550 M5 - Solving Ethernet Controller Problems

Table23.Componentsassociatedwithpowerrailerrors
PwrrailerrorintheIMMeventlogComponents
Pwrrail1error•Microprocessor1
Pwrrail2error•Microprocessor2
Pwrrail3error•DIMMs1through12
•Fan3
•Fan4
Pwrrail4error•Fan5
•Fan6
•DIMMs13through24
Pwrrail5error•Fan7
•Fan8
•SAS/SATAharddiskdrivesandUSB
Pwrrail6error
•OptionalcableforVGAexternalpower
•PCI-Eandx16(maximumexpansionis4adaptercards
•PCI-Eharddiskdrives
Pwrrail7error•Fan1
•Fan2
d.Replacetheidentifiedcomponent.
Step5.Removetheadaptersanddisconnectthecablesandpowercordstoallinternalandexternal
devicesuntiltheserverisattheminimumconfigurationthatisrequiredfortheservertostart(see
“Power-supplyLEDs”onpage61
fortheminimumconfiguration).
Step6.Reconnectallpowercordsandturnontheserver.Iftheserverstartssuccessfully,reseatthe
adaptersanddevicesoneatatimeuntiltheproblemisisolated.
Iftheserverdoesnotstartfromtheminimumconfiguration,see“Power-supplyLEDs”onpage61toreplace
thecomponentsintheminimumconfigurationoneatatimeuntiltheproblemisisolated.
SolvingEthernetcontrollerproblems
ThemethodthatyouusetotesttheEthernetcontrollerdependsonwhichoperatingsystemyouareusing.
Seetheoperating-systemdocumentationforinformationaboutEthernetcontrollers,andseetheEthernet
controllerdevice-driverreadmefile.
Trythefollowingprocedures:
•Makesurethatthecorrectdevicedrivers,whichcomewiththeserverareinstalledandthattheyareat
thelatestlevel.
•MakesurethattheEthernetcableisinstalledcorrectly.
–Thecablemustbesecurelyattachedatallconnections.Ifthecableisattachedbuttheproblem
remains,tryadifferentcable.
–IfyousettheEthernetcontrollertooperateat100Mbps,youmustuseCategory5cabling.
–Ifyoudirectlyconnecttwoservers(withoutahub),orifyouarenotusingahubwithXports,usea
crossovercable.TodeterminewhetherahubhasanXport,checktheportlabel.Ifthelabelcontains
anX,thehubhasanXport.
•Determinewhetherthehubsupportsauto-negotiation.Ifitdoesnot,tryconfiguringtheintegrated
Ethernetcontrollermanuallytomatchthespeedandduplexmodeofthehub.
Chapter3.Troubleshooting89