Lenovo System x3250 M4 - Power Problems

Powerproblems
Table26.Powerproblemsandactions
•FollowthesuggestedactionsintheorderinwhichtheyarelistedintheActioncolumnuntiltheproblemis
solved.
•Ifanactionstepisprecededby“(Trainedtechnicianonly)”,thatstepmustbeperformedonlybyatrained
technician.
•GototheIBMsupportwebsiteathttp://www.lenovo.com/supporttocheckfortechnicalinformation,hints,
tips,andnewdevicedriversortosubmitarequestforinformation.
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
page22
).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”onpage93.
Chapter4.Troubleshooting111