Table27.Optional-deviceproblemsandactions(continued)
SymptomAction
3.Replacethedevicethatyoujustinstalled.
AnLenovooptionaldevicethat
workedpreviouslydoesnot
worknow.
1.Makesurethatallofthecableconnectionsforthedevicearesecure.
2.Ifthedevicecomeswithtestinstructions,usethoseinstructionstotestthe
device.
3.IfthefailingdeviceisaSCSIdevice,makesurethat:
•ThecablesforallexternalSCSIdevicesareconnectedcorrectly.
•ThelastdeviceineachSCSIchain,ortheendoftheSCSIcable,is
terminatedcorrectly.
•AnyexternalSCSIdeviceisturnedon.YoumustturnonanexternalSCSI
devicebeforeyouturnontheserver.
4.Reseatthefailingdevice.
5.Replacethefailingdevice.
Powerproblems
•FollowthesuggestedactionsintheorderinwhichtheyarelistedintheActioncolumnuntiltheproblemis
solved.
•Ifanactionstepisprecededby'(Trainedtechnicianonly)',thatstepmustbeperformedonlybyaTrained
technician.
•GototheIBMsupportwebsiteathttp://www.lenovo.com/supporttocheckfortechnicalinformation,
hints,tips,andnewdevicedriversortosubmitarequestforinformation.
Table28.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.Makesurethat:
a.Thepowercordsarecorrectlyconnectedtotheserverandtoaworking
electricaloutlet.
b.Thetypeofmemorythatisinstallediscorrect.
c.TheDIMMisfullyseated.
d.TheLEDsonthepowersupplydonotindicateaproblem.
e.Themicroprocessorsareinstalledinthecorrectsequence.
3.Reseatthefollowingcomponents:
a.DIMMs
b.(Trainedtechnicianonly)Powerswitchconnector
c.(Trainedtechnicianonly)Powerbackplane
Chapter4.Troubleshooting153
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