Lenovo System x3250 M4 - Monitor Problems

Table22.Microprocessor'ssymptomsandactions(continued)
•GototheIBMsupportwebsiteathttp://www.lenovo.com/supporttocheckfortechnicalinformation,hints,
tips,andnewdevicedriversortosubmitarequestforinformation.
SymptomAction
Theservergoesdirectlytothe
POSTEventViewerwhenitis
turnedon.
1.Makesurethattheserversupportsallthemicroprocessorsandthatthe
microprocessorsmatchinspeedandcachesize.Toviewthemicroprocessor
information,runtheSetuputilityandselectSystemInformation➙System
Summary➙ProcessorDetails.
2.(Trainedtechnicianonly)Reseatmicroprocessor1
3.Replacethefollowingcomponentsoneatatime,intheordershown,restarting
theservereachtime:
a.(Trainedtechnicianonly)Microprocessor2
b.(Trainedtechnicianonly)Systemboard
Monitorproblems
SomeIBMmonitorshavetheirownself-tests.Ifyoususpectaproblemwithyourmonitor,seethe
documentationthatcomeswiththemonitorforinstructionsfortestingandadjustingthemonitor.Ifyou
cannotdiagnosetheproblem,callforservice.
Table23.Monitorandvideo'ssymptomsandactions
•FollowthesuggestedactionsintheorderinwhichtheyarelistedintheActioncolumnuntiltheproblemis
solved.
•Ifanactionstepisprecededby“(Trainedtechnicianonly)”,thatstepmustbeperformedonlybyatrained
technician.
•GototheIBMsupportwebsiteathttp://www.lenovo.com/supporttocheckfortechnicalinformation,hints,
tips,andnewdevicedriversortosubmitarequestforinformation.
SymptomAction
Testingthemonitor.
1.Makesurethatthemonitorcablesarefirmlyconnected.
2.Tryusingadifferentmonitorontheserver,ortryusingthemonitorthatisbeing
testedonadifferentserver.
3.Runthediagnosticprograms.Ifthemonitorpassesthediagnosticprograms,
theproblemmightbeavideodevicedriver.
4.(Trainedtechnicianonly)Replacethesystemboard.
Thescreenisblank.
1.IftheserverisattachedtoaKVMswitch,bypasstheKVMswitchtoeliminateit
asapossiblecauseoftheproblem:connectthemonitorcabledirectlytothe
correctconnectorontherearoftheserver.
2.Makesurethat:
•Theserveristurnedon.Ifthereisnopowertotheserver,see“Power
problems”onpage111
.
•Themonitorcablesareconnectedcorrectly.
•Themonitoristurnedonandthebrightnessandcontrastcontrolsare
adjustedcorrectly.
•NoPOSTerrorsaregeneratedwhentheserveristurnedon.
3.Makesurethatthecorrectserveriscontrollingthemonitor,ifapplicable.
4.Makesurethatdamagedserverfirmwareisnotaffectingthevideo;see
“Updatingthefirmware”onpage61.
5.ObservethecheckpointLEDsonthesystemboard;ifthecodesarechanging,
gotonextstep.
108LenovoSystemx3250M4InstallationandServiceGuide