Symptom
Action
9.Ifyoususpectaproblemwiththebackplanesignal
cableorthebackplane:
a.Replacetheaffectedbackplanesignalcable.
b.Replacetheaffectedbackplane.
Multipleharddiskdrivesfail.1.Ifyouhaveanydiagnosticprograms,runthe
diagnosticprogramstotesttheharddiskdrives.
2.Ensurethatthecableconnectioniscorrect.See
“Connectingthecables”onpage36
.
3.Reconnectthepowercable.
4.Reconnectthesignalcable.
5.Replacetheaffectedsignalcable.
6.Forhot-swapharddiskdrives,ifyoususpecta
problemwiththebackplane,replacetheaffected
backplane.
Memorymoduleproblems
Followthesuggestedactionsforthecorrespondingsymptomintheorderinwhichtheyarelisteduntilthe
problemissolved.Ifnoneoftheseactionssolvetheproblem,see“Troubleshootingprocedure”onpage
167forthesubsequentstepsyoushouldcheckafterusingtheinformationinthistopic.Iftheproblem
cannotbesolvedbyyourself,seektechnicalassistance.SeeChapter8“Gettinginformation,help,and
service”onpage173
.
Notes:
1.Ifyouareinstructedtoremove,install,orreplaceanyCRUs,refertotherelatedprocedureinChapter6
“Installing,removing,orreplacinghardware”onpage65.
2.Ifanactionstepisprecededby“(Trainedservicetechnicianonly),”thisactionstepisreservedfora
trainedservicetechnicianandmustbeperformedonlybyatrainedservicetechnician.
Symptom
Action
Theamountofsystemmemorythatisdisplayedisless
thanthetotalcapacityoftheinstalledphysicalmemory
modulesandyoususpectamemorymoduleproblem.
1.Ensurethat:
•Allmemorymodulesarethecorrecttype
supportedbytheserver.See“Features”onpage
7.
•Youfollowthememorymoduleinstallationrules.
See“Memorymoduleinstallationrules”onpage
74.
•Allmemorymodulesareseatedcorrectlyand
securely.
•Thesystemfirmwareisup-to-date.
2.Ifyouhaveanydiagnosticprograms,runthe
diagnosticprogramstotestthememorymodules.
3.Reinstallthememorymodules.
4.Replacethesuspectmemorymodules.
5.(Trainedservicetechnicianonly)Replacethesystem
board.
Chapter7.Troubleshootinganddiagnostics171
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