Symptom
Action
6.Ensurethatthecableconnectioniscorrect.See
“Connectingthecables”onpage48
.
7.Reconnectthebackplanepowercableandrepeat
step1throughstep4.
8.Reconnectthebackplanesignalcableandrepeat
step1throughstep4.
9.Ifyoususpectaproblemwiththebackplanesignal
cableorthebackplane:
a.Replacetheaffectedbackplanesignalcable.
b.Replacetheaffectedbackplane.
Multipleharddiskdrivesfail.
1.Ensurethatthecableconnectioniscorrect.See
“Connectingthecables”onpage48.
2.Reconnectthepowercables.
3.Reconnectthesignalcables.
4.Replacetheaffectedsignalcables.
5.Ifyoususpectaproblemwiththebackplane,replace
theaffectedbackplane.
Memorymoduleproblems
Followthesuggestedactionsforthecorrespondingsymptomintheorderinwhichtheyarelisteduntilthe
problemissolved.Ifnoneoftheseactionssolvetheproblem,see“Troubleshootingprocedure”onpage211
forthesubsequentstepsyoushouldcheckafterusingtheinformationinthistopic.Iftheproblemstillcannot
besolved,seektechnicalassistance.SeeChapter8“Gettinginformation,help,andservice”onpage217
.
Notes:
•Ifyouareinstructedtoremove,install,orreplaceanyCRUs,refertotherelatedprocedureinChapter6
“Installing,removing,orreplacinghardware”onpage87
.
•Ifanactionstepisprecededby“(Trainedservicetechnicianonly),”thisactionstepisreservedforatrained
servicetechnicianandmustbeperformedonlybyatrainedservicetechnician.
Symptom
Action
Theamountofsystemmemorythatisdisplayedisless
thanthetotalcapacityoftheinstalledphysicalmemory
modulesandyoususpectamemorymoduleproblem.
1.Ensurethat:
•Allmemorymodulesarethecorrecttype
supportedbytheserver.See“Memorymodule
installationrules”onpage101.
•Youfollowedthememorymoduleinstallation
rules.See“Memorymoduleinstallationrules”on
page101.
•Allmemorymodulesareseatedcorrectlyand
securely.
•Thesystemfirmwareisup-to-date.
2.Reinstallthememorymodules.
3.Replacethesuspectmemorymodules.
4.(Trainedservicetechnicianonly)Replacethesystem
board.
Chapter7.Troubleshootinganddiagnostics215
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