Lenovo ThinkServer RD640 - Hard Disk Drive Problems; Memory Module Problems

Harddiskdriveproblems
Followthesuggestedactionsforthecorrespondingsymptomintheorderinwhichtheyarelisteduntilthe
problemissolved.Ifnoneoftheseactionssolvetheproblem,see“Troubleshootingprocedure”onpage189
forthesubsequentstepsyoushouldcheckafterusingtheinformationinthistopic.Iftheproblemstillcannot
besolved,seektechnicalassistance.SeeChapter8“Gettinginformation,help,andservice”onpage195.
Notes:
•Ifyouareinstructedtoremove,install,orreplaceanyCRUs,refertotherelatedprocedureinChapter6
“Installing,removing,orreplacinghardware”onpage75
.
•ThestatusLEDsoneachhot-swapharddiskdrivehelpyoueasilyidentifyaproblem.See“Hot-swap
hard-disk-drivestatusLEDs”onpage35.
Symptom
Action
Anewlyinstalledhot-swapharddiskdriveisnot
recognized.
1.Ensurethatthedriveisinstalledintothecorrectdrive
bay.
2.Restarttheserver.
3.Removethedrivefromthebay,wait45seconds,
andreinsertthedriveintothebay,makingsurethat
thedriveconnectstothehot-swaphard-disk-drive
backplane.
4.Runanydiagnosticprogramstotesttheharddisk
driveifyouhave.
5.Ensurethatthehot-swaphard-disk-drivebackplane
iscorrectlyseated.Whenitiscorrectlyseated,
thedriveassembliescorrectlyconnecttothe
backplanewithoutbowingorcausingmovementof
thebackplane.
6.Ensurethatthecableconnectioniscorrect.See
“Mini-SAStomini-SASsignalcableconnections”on
page43
.
7.Reconnectthebackplanepowercableandrepeat
step1throughstep4.
8.Reconnectthebackplanesignalcableandrepeat
step1throughstep4.
9.Ifyoususpectaproblemwiththebackplanesignal
cableorthebackplane:
a.Replacetheaffectedbackplanesignalcable.
b.Replacetheaffectedbackplane.
Multipleharddiskdrivesfail.
1.Ensurethatthecableconnectioniscorrect.See
“Mini-SAStomini-SASsignalcableconnections”on
page43.
2.Reconnectthepowercable(s).
3.Reconnectthesignalcable(s).
4.Replacetheaffectedsignalcable(s).
5.Ifyoususpectaproblemwiththebackplane,replace
theaffectedbackplane.
Memorymoduleproblems
Followthesuggestedactionsforthecorrespondingsymptomintheorderinwhichtheyarelisteduntilthe
problemissolved.Ifnoneoftheseactionssolvetheproblem,see“Troubleshootingprocedure”onpage189
192ThinkServerRD640UserGuideandHardwareMaintenanceManual