Table18.Powerproblemsandactions
•FollowthesuggestedactionsintheorderinwhichtheyarelistedintheActioncolumnuntiltheproblemis
solved.
•Ifanactionstepisprecededby“(Trainedtechnicianonly),”thatstepmustbeperformedonlybyatrained
technician.
•GototheSupportWebsiteathttp://www.lenovo.com/supporttocheckfortechnicalinformation,hints,
tips,andnewdevicedriversortosubmitarequestforinformation.
SymptomAction
Thepower-controlbuttondoes
notwork,andtheresetbutton
doesnotwork(theserverdoes
notstart).
Note:Thepower-control
buttonwillnotfunctionuntil
approximately20secondsafter
theserverhasbeenconnected
topower.
1.Makesurethatthepower-controlbuttonisworkingcorrectly:
a.Disconnecttheserverpowercords.
b.Reconnectthepowercords.
c.(Trainedtechnicianonly)Reseattheoperatorinformationpanelcable,and
thenrepeatsteps1aand1b.
•(Trainedtechnicianonly)Iftheserverstarts,reseattheoperatorinformation
panel.Iftheproblemremains,replacetheoperatorinformationpanel.
•Iftheserverdoesnotstart,bypassthepower-controlbuttonbyusing
theforcepower-onjumper(see“System-boardswitches,jumpers,and
buttons”onpage27).Iftheserverstarts,reseattheoperatorinformation
panel.Iftheproblemremains,replacetheoperatorinformationpanel.
2.Makesurethattheresetbuttonisworkingcorrectly:
a.Disconnecttheserverpowercords.
b.Reconnectthepowercords.
c.(Trainedtechnicianonly)Reseattheoperatorinformationpanelcable,and
thenrepeatsteps2aand2b.
•(Trainedtechnicianonly)Iftheserverstarts,replacetheoperator
informationpanel.
•Iftheserverdoesnotstart,gotostep3.
3.Makesurethatbothpowersuppliesinstalledintheserverareofthesametype.
Mixingdifferentratingsofpowersuppliesintheserverwillcauseasystemerror
(CONFIGiconwillbeshownontheLCDsysteminformationdisplaypanel).
4.Makesurethat:
•Thepowersourcemeetstheminimumvoltagerequirementfortheinstalled
powersupplies.
•Thetypeofmemorythatisinstallediscorrect.
•TheDIMMsarefullyseated.
•TheLEDsonthepowersupplydonotindicateaproblem.
•Themicroprocessorsareinstalledinthecorrectsequence.
5.Reseatthefollowingcomponents:
a.Operatorinformationpanelconnector
b.Powersupplies
6.Replacethecomponentslistedinstep5oneatatime,intheordershown,
restartingtheservereachtime.
7.Ifyoujustinstalledanoptionaldevice,removeit,andrestarttheserver.If
theservernowstarts,youmighthaveinstalledmoredevicesthanthepower
supplysupports.
8.See“Power-supplyLEDs”onpage60.
9.See“Solvingundeterminedproblems”onpage89.
Pwrrail1errorhasbeen
recordedinthesystemevent
log.
1.Disconnecttheserverpowercords.
2.(Trainedtechnicianonly)removemicroprocessor1ifthePwrrail1errorhas
beenrecordedinthesystemeventlog.
Chapter3.Troubleshooting81