Lenovo ThinkServer RD240 - Memory Problems

•FollowthesuggestedactionsintheorderinwhichtheyarelistedintheActioncolumnuntiltheproblemis
solved.
•SeethepartslistinginChapter8“Partslisting,RD240Types1045,1046,1047,and1048”onpage93to
determinewhichcomponentsarecustomerreplaceableunits(CRUs)andwhichcomponentsareeld
replaceableunits(FRUs).
•Ifanactionstepisprecededby“(Trainedservicetechnicianonly),”thatstepmustbeperformedonlyby
atrainedservicetechnician.
SymptomAction
3.Replacethefollowingcomponentsoneatatime,intheordershown,restarting
theservereachtime:
a.Mouseorpointingdevice
b.(Trainedservicetechnicianonly)Systemboard
Memoryproblems
•FollowthesuggestedactionsintheorderinwhichtheyarelistedintheActioncolumnuntiltheproblemis
solved.
•SeethepartslistinginChapter8“Partslisting,RD240Types1045,1046,1047,and1048”onpage93to
determinewhichcomponentsarecustomerreplaceableunits(CRUs)andwhichcomponentsareeld
replaceableunits(FRUs).
•Ifanactionstepisprecededby“(Trainedservicetechnicianonly),”thatstepmustbeperformedonlyby
atrainedservicetechnician.
SymptomAction
Theamountofsystemmemory
thatisdisplayedislessthan
theamountofinstalledphysical
memory.
1.Makesurethat:
•NoerrorLEDsarelitontheoperatorinformationpanelorontheDIMM.
•Memorymirroringdoesnotaccountforthediscrepancy.
•Thememorymodulesareseatedcorrectly.
•Youhaveinstalledthecorrecttypeofmemory.
•Ifyouchangedthememory,youupdatedthememorycongurationinthe
SetupUtilityprogram.
•Allbanksofmemoryareenabled.Theservermighthaveautomatically
disabledamemorybankwhenitdetectedaproblem,oramemorybank
mighthavebeenmanuallydisabled.
2.CheckthePOSTeventlogforDIMMerrormessages:
•IfaDIMMwasdisabledbyasystems-managementinterrupt(SMI),replace
theDIMM.
•IfaDIMMwasdisabledbytheuserorbyPOST,runtheSetupUtilityprogram
andenabletheDIMM.
3.Makesurethatthereisnomemorymismatchwhentheserverisattheminimum
memoryconguration.
4.AddonepairofDIMMsatatime,makingsurethattheDIMMsineachpair
arematching.
5.ReseattheDIMMs.
6.ReplacetheDIMMsinstep5onpage16,oneatatime,intheordershown,
restartingtheservereachtime.
MultiplerowsofDIMMsina
branchareidentiedasfailing.
1.ReseattheDIMMs;then,restarttheserver.
2.Replacethelowest-numberedDIMMswithidenticalknowngoodDIMMs;
then,restarttheserver.Repeatasnecessary.Ifthefailurescontinueafterall
identiedpairsarereplaced,gotostep4onpage17
.
16ThinkServerRD240HardwareMaintenanceManual