Computer Hardware User Manual

Powerproblems
•FollowthesuggestedactionsintheorderinwhichtheyarelistedintheActioncolumnuntiltheproblemis
solved.
•SeeChapter7“Partslisting,RS210Types6531,6532,6533,and6534”onpage175todeterminewhich
componentsarecustomerreplaceableunits(CRU)andwhichcomponentsareeldreplaceableunits(FRU).
•Ifanactionstepisprecededby“(Trainedservicetechnicianonly),”thatstepmustbeperformedonlyby
aTrainedservicetechnician.
•GototheLenovosupportWebsiteathttp://www.lenovo.com/supporttocheckfortechnicalinformation,
hints,tips,andnewdevicedriversortosubmitarequestforinformation.
SymptomAction
Thepower-controlbuttondoes
notwork,andtheresetbutton
doeswork(theserverdoesnot
start).
Note:Thepower-control
buttonwillnotfunctionuntil
approximately1to3minutes
aftertheserverhasbeen
connectedtoacpower.
1.Makesurethatthepower-controlbuttonisworkingcorrectly:
a.Disconnecttheserverpowercords.
b.Reconnectthepowercords.
c.(Trainedservicetechnicianonly)Reseattheoperatorinformationpanelcables,
andthenrepeatsteps1aand1b.
•(Trainedservicetechnicianonly)Iftheserverstarts,reseattheoperator
informationpanel.Iftheproblemremains,replacetheoperatorinformation
panel.
•Iftheserverdoesnotstart,bypassthepower-controlbuttonbyusingthe
forcepower-onjumper(see“System-boardswitchesandjumpers”on
page111
).Iftheserverstarts,reseattheoperatorinformationpanel.Ifthe
problemremains,replacetheoperatorinformationpanel.
2.Makesurethattheresetbuttonisworkingcorrectly:
a.Disconnecttheserverpowercords.
b.Reconnectthepowercords.
3.Makesurethat:
•Thepowercordsarecorrectlyconnectedtotheserverandtoaworking
electricaloutlet.
•Thetypeofmemorythatisinstallediscorrect.
•TheDIMMsarefullyseated.
•TheLEDsonthepowersupplydonotindicateaproblem.
•(Trainedservicetechnicianonly)Themicroprocessoriscorrectlyinstalled.
4.Reseatthefollowingcomponents:
a.DIMMs
b.(Trainedservicetechnicianonly)Power-supplycablestoallinternal
components
c.(Trainedservicetechnicianonly)Powerswitchconnector
5.Replacethefollowingcomponentsoneatatime,intheordershown,restarting
theservereachtime:
a.DIMMs
b.Powersupply
c.(Trainedservicetechnicianonly)Systemboard
6.Ifyoujustinstalledanoptionaldevice,removeit,andrestarttheserver.Ifthe
servernowstarts,youmighthaveinstalledmoredevicesthanthepowersupply
supports.
7.See“Power-supplyLEDs”onpage63.
8.See“Solvingundeterminedproblems”onpage104.
58HardwareMaintenanceManual