Lenovo System x3500 M4 - Monitor Problems

Table23.Microprocessor'ssymptomsandactions(continued)
SymptomAction
5.Replacethefollowingcomponentsoneatatime,intheordershown,restarting
theservereachtime:
a.(Trainedtechnicianonly)Microprocessor2
b.(Trainedtechnicianonly)Systemboard
6.(Trainedtechnicianonly)IfmultipleerrorcodesorlightpathdiagnosticsLEDs
indicateamicroprocessorerror,reversethelocationsoftwomicroprocessors
todeterminewhethertheerrorisassociatedwithamicroprocessororwitha
microprocessorsocket.
•Iftheerrorisassociatedwithamicroprocessor,replacethemicroprocessor.
•Iftheerrorisassociatedwithamicroprocessorsocket,replacethesystem
board.
Monitorproblems
SomeLenovomonitorshavetheirownself-tests.Ifyoususpectaproblemwithyourmonitor,seethe
documentationthatcomeswiththemonitorforinstructionsfortestingandadjustingthemonitor.Ifyou
cannotdiagnosetheproblem,callforservice.
•FollowthesuggestedactionsintheorderinwhichtheyarelistedintheActioncolumnuntiltheproblemis
solved.
•Ifanactionstepisprecededby'(Trainedtechnicianonly)',thatstepmustbeperformedonlybyaTrained
technician.
•GototheIBMsupportwebsiteathttp://www.lenovo.com/supporttocheckfortechnicalinformation,
hints,tips,andnewdevicedriversortosubmitarequestforinformation.
Table24.Monitorandvideo'ssymptomsandactions
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”onpage155
.
•Themonitorcablesareconnectedcorrectly.
•Themonitoristurnedonandthebrightnessandcontrastcontrolsare
adjustedcorrectly.
•NoPOSTerrorsaregeneratedwhentheserveristurnedon.
3.Makesurethatthecorrectserveriscontrollingthemonitor,ifapplicable.
4.See“Solvingundeterminedproblems”onpage161.
Chapter4.Troubleshooting153