Lenovo System x3550 M4 - Page 141

Table14.LightpathdiagnosticspanelLEDs(continued)
•FollowthesuggestedactionsintheorderinwhichtheyarelistedintheActioncolumnuntiltheproblemis
solved.
•Ifanactionstepisprecededby"(trainedtechnicianonly),"thatstepmustbeperformedonlybyatrained
technician.
LEDDescriptionAction
WhenonlytheCPULEDislit,a
microprocessorhasfailed.
IftheCONFIGLEDisnotlit,amicroprocessorfailureoccurs,
completethefollowingsteps:
1.(Trainedtechnicianonly)Makesurethatthefailing
microprocessoranditsheatsink,whichareindicatedbya
litLEDonthesystemboard,areinstalledcorrectly.See
“Replacingamicroprocessorandheatsink”onpage290
forinformationaboutinstallationandrequirements.
2.(Trainedtechnicianonly)Replacethefailingmicroprocessor
(see“Removingamicroprocessorandheatsink”onpage
285and“Replacingamicroprocessorandheatsink”on
page290).
3.Formoreinformation,goto
http://www.ibm.com/support/entry/portal/docdisplay?
lndocid=SERV-CALL.
CPU
CPU+CONFIGWhenboth
theCPULEDandtheCONFIG
LEDarelit,themicroprocessor
configurationisinvalid.
IftheCONFIGLEDandtheCPULEDarelit,thesystemissues
aninvalidmicroprocessorconfigurationerror.Completethe
followingstepstocorrecttheproblem:
1.Checkthemicroprocessorsthatwerejustinstalledto
makesurethattheyarecompatiblewitheachother(see
“Replacingamicroprocessorandheatsink”onpage
290
foradditionalinformationaboutmicroprocessor
requirements).
2.(Trainedtechnicianonly)Replacetheincompatible
microprocessor.
3.Checkthesystem-errorlogsforinformationaboutthe
error.Replaceanycomponentthatisidentifiedintheerror
log.
WhenonlytheMEMLEDislit,a
memoryerrorhasoccurred.
Note:EachtimeyouinstallorremoveaDIMM,youmust
disconnecttheserverfromthepowersource;then,wait10
secondsbeforerestartingtheserver.
IftheCONFIGLEDisnotlit,thesystemmightdetectamemory
error.Completethefollowingstepstocorrecttheproblem:
1.Updatetheserverfirmwaretothelatestlevel(see
“Updatingthefirmware”onpage93
).
2.ReseatorswaptheDIMMswithlitLED.
3.Checkthesystem-eventlogintheSetuputilityorIMM
errormessages.FollowstepsindicatedinAppendix
B“UEFI/POSTdiagnosticcodes”onpage791
and
AppendixA“IntegratedmanagementmoduleII(IMM2)
errormessages”onpage309.
4.ReplacethefailingDIMM(see“Removingamemory
module”onpage213
and“Installingamemorymodule”
onpage45).
MEM
MEM+CONFIGWhenboththe
MEMandCONFIGLEDsare
IftheMEMLEDandtheCONFIGLEDarelit,checkthe
system-eventlogintheSetuputilityorIMM2errormessages.
Chapter4.Troubleshooting127