Lenovo System x3500 M4 - Microprocessor Problems

Table22.Memoryproblemsandactions(continued)
SymptomAction
5.ReversetheDIMMsbetweenthechannels(ofthesamemicroprocessor),and
thenrestarttheserver.IftheproblemisrelatedtoaDIMM,replacethefailing
DIMM.
6.Re-enableallDIMMsusingtheSetuputility,andthenrestarttheserver.
7.(Trainedtechnicianonly)InstallthefailingDIMMintoaDIMMconnector
formicroprocessor2(ifinstalled)toverifythattheproblemisnotthe
microprocessorortheDIMMconnector.
8.(Trainedtechnicianonly)Replacethesystemboard.
MultipleDIMMsinachannel
areidentifiedasfailing.
Note:EachtimeyouinstallorremoveaDIMM,youmustdisconnecttheserverfrom
thepowersource;then,wait10secondsbeforerestartingtheserver.
1.ReseattheDIMMs;then,restarttheserver.
2.Removethehighest-numberedDIMMofthosethatareidentifiedandreplace
itwithanidenticalknowngoodDIMM;then,restarttheserver.Repeatas
necessary.IfthefailurescontinueafterallidentifiedDIMMsarereplaced,go
tostep4.
3.ReturntheremovedDIMMs,oneatatime,totheiroriginalconnectors,restarting
theserveraftereachDIMM,untilaDIMMfails.ReplaceeachfailingDIMM
withanidenticalknowngoodDIMM,restartingtheserveraftereachDIMM
replacement.Repeatstep3untilyouhavetestedallremovedDIMMs.
4.Replacethehighest-numberedDIMMofthoseidentified;then,restartthe
server.Repeatasnecessary.
5.ReversetheDIMMsbetweenthechannels(ofthesamemicroprocessor),and
thenrestarttheserver.IftheproblemisrelatedtoaDIMM,replacethefailing
DIMM.
6.(Trainedtechnicianonly)InstallthefailingDIMMintoaDIMMconnector
formicroprocessor2(ifinstalled)toverifythattheproblemisnotthe
microprocessorortheDIMMconnector.
7.(Trainedtechnicianonly)Replacethesystemboard.
Microprocessorproblems
•FollowthesuggestedactionsintheorderinwhichtheyarelistedintheActioncolumnuntiltheproblemis
solved.
•Ifanactionstepisprecededby'(Trainedtechnicianonly)',thatstepmustbeperformedonlybyaTrained
technician.
•GototheIBMsupportwebsiteathttp://www.lenovo.com/supporttocheckfortechnicalinformation,
hints,tips,andnewdevicedriversortosubmitarequestforinformation.
Table23.Microprocessor'ssymptomsandactions
SymptomAction
Theservergoesdirectlytothe
POSTEventViewerwhenitis
turnedon.
1.CorrectanyerrorsthatareindicatedbythelightpathdiagnosticsLEDs(see
“Lightpathdiagnostics”onpage133
).
2.Makesurethattheserversupportsallthemicroprocessorsandthatthe
microprocessorsmatchinspeedandcachesize.Toviewthemicroprocessor
information,runtheSetuputilityandselectSystemInformation➙System
Summary➙ProcessorDetails.
3.(Trainedtechnicianonly)Reseatmicroprocessor1
4.(Trainedtechnicianonly)Ifthereisnoindicationofwhichmicroprocessorhas
failed,isolatetheerrorbytestingwithonemicroprocessoratatime.
152Systemx3500M4InstallationandServiceGuide