Server User Manual

–Ifyoudirectlyconnecttwoservers(withoutahub),orifyouarenotusingahubwithXports,usea
crossovercable.TodeterminewhetherahubhasanXport,checktheportlabel.Ifthelabelcontains
anX,thehubhasanXport.
•Determinewhetherthehubsupportsauto-negotiation.Ifitdoesnot,tryconguringtheintegrated
Ethernetcontrollermanuallytomatchthespeedandduplexmodeofthehub.
•ChecktheEthernetcontrollerLEDsontherearpaneloftheserver.TheseLEDsindicatewhetherthere
isaproblemwiththeconnector,cable,orhub.
–TheEthernetlinkstatusLEDislitwhentheEthernetcontrollerreceivesalinkpulsefromthehub.Ifthe
LEDisoff,theremightbeadefectiveconnectororcableoraproblemwiththehub.
–TheEthernettransmit/receiveactivityLEDislitwhentheEthernetcontrollersendsorreceivesdata
overtheEthernetnetwork.IftheEthernettransmit/receiveactivityLEDisoff,makesurethatthehub
andnetworkareoperatingandthatthecorrectdevicedriversareinstalled.
•ChecktheLANactivityLEDsontherearoftheserver.TheLANactivityLEDislitwhendataisactiveon
theEthernetnetwork.IftheLANactivityLEDisoff,makesurethatthehubandnetworkareoperating
andthatthecorrectdevicedriversareinstalled.
•Checkforoperating-system-speciccausesoftheproblem.
•Makesurethatthedevicedriversontheclientandserverareusingthesameprotocol.
IftheEthernetcontrollerstillcannotconnecttothenetworkbutthehardwareappearstobeworking,the
networkadministratormustinvestigateotherpossiblecausesoftheerror.
Solvingundeterminedproblems
Ifthediagnostictestsdidnotdiagnosethefailureoriftheserverisinoperative,usetheinformationin
thissection.
Ifyoususpectthatasoftwareproblemiscausingfailures(continuousorintermittent),see“Software
problems”onpage91.
DamageddatainCMOSmemoryordamagedrmwarecancauseundeterminedproblems.Toresetthe
CMOSdata,usethepasswordswitch2(SW4)tooverridethepower-onpasswordandcleartheCMOS
memory;see“Locatingpartsonthesystemboard”onpage13.
ChecktheLEDsonallthepowersupplies.IftheLEDsindicatethatthepowersuppliesareworking
correctly,dothefollowing:
1.Turnofftheserver.
2.Makesurethattheserveriscabledcorrectly.
3.Removeordisconnectthefollowingdevices,oneatatime,untilyoundthefailure.Turnontheserver
andrecongureiteachtime.
•Anyexternaldevices
•Surge-suppressordevice(ontheserver)
•Modem,printer,mouse,andnon-Lenovodevices
•Eachadapter
•Harddiskdrives
•Memorymodules:theminimumcongurationrequirementis1GBDIMMpermicroprocessor(2GB
inatwo-microprocessorconguration)
Thefollowingminimumcongurationisrequiredfortheservertostart:
•Onemicroprocessor
•One1GBDIMM
•Onepowersupply
Chapter7.Troubleshooting93