Table27.Powerproblemsandactions
SymptomAction
Thepower-controlbuttondoes
notwork,andtheresetbutton
doesnotwork(theserverdoes
notstart).
Note:Thepower-control
buttonwillnotfunctionuntil
approximately5to10seconds
aftertheserverhasbeen
connectedtopower.
1.Makesurethatthepower-controlbuttonisworkingcorrectly:
a.Disconnecttheserverpowercords.
b.Reconnectthepowercords.
c.(Trainedtechnicianonly)Reseattheoperatorinformationpanelcable,and
thenrepeatsteps1aand1b.
•(Trainedtechnicianonly)Iftheserverstarts,reseattheoperatorinformation
panel.Iftheproblemremains,replacetheoperatorinformationpanel.
•Iftheserverdoesnotstart,bypassthepower-controlbuttonbyusingthe
forcepower-onjumper(see“System-boardswitchesandjumpers”on
page27
).Iftheserverstarts,reseattheoperatorinformationpanel.Ifthe
problemremains,replacetheoperatorinformationpanel.
2.Makesurethattheresetbuttonisworkingcorrectly:
•Disconnecttheserverpowercord.
•Reconnectthepowercord.
3.Makesurethat:
a.Thepowercordsarecorrectlyconnectedtotheserverandtoaworking
electricaloutlet.
b.Thetypeofmemorythatisinstallediscorrect.
c.TheDIMMisfullyseated.
d.TheLEDsonthepowersupplydonotindicateaproblem.
e.(Trainedtechnicianonly)Themicroprocessorsareinstalledinthecorrect
sequence.
4.Reseatthefollowingcomponents:
a.DIMMs
b.(Trainedtechnicianonly)Power-supplycablestoallinternalcomponents
c.(Trainedtechnicianonly)Powerswitchconnector
5.Replacethefollowingcomponentsoneatatime,intheordershown,restarting
theservereachtime:
a.DIMMs
b.Powersupply
c.(Trainedtechnicianonly)Systemboard
6.Ifyoujustinstalledanoptionaldevice,removeit,andrestarttheserver.If
theservernowstarts,youmighthaveinstalledmoredevicesthanthepower
supplysupports.
7.See“Power-supplyLEDs”onpage119.
8.See“Solvingundeterminedproblems”onpage141.
Theserverdoesnotturnoff.
1.DeterminewhetheryouareusinganAdvancedConfigurationandPower
Interface(ACPI)oranon-ACPIoperatingsystem.Ifyouareusinganon-ACPI
operatingsystem,completethefollowingsteps:
a.PressCtrl+Alt+Delete.
b.Turnofftheserverbypressingthepower-controlbuttonfor5seconds.
c.Restarttheserver.
d.IftheserverfailsPOSTandthepower-controlbuttondoesnotwork,
disconnectthepowercordfor5seconds;then,reconnectthepowercord
andrestarttheserver.
Chapter4.Troubleshooting137
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