Lenovo x3650 M4 BD 5466 - Page 142

•FollowthesuggestedactionsintheorderinwhichtheyarelistedintheActioncolumnuntiltheproblemis
solved.
•SeeChapter5“Partslisting”onpage141tocheckifacomponentisaconsumable,structural,orFRUpart.
•Ifanactionstepisprecededby“(Trainedtechnicianonly),”thatstepmustbeperformedonlybyatrained
technician.
SymptomAction
5.ObservethecheckpointLEDsonthesystemboard;ifthecodesarechanging,
gotostep6.
6.Replacethefollowingcomponentsoneatatime,intheordershown,restarting
theservereachtime:
a.Monitor
b.Videoadapter(ifoneisinstalled)
c.(Trainedtechnicianonly)Systemboard.
7.See“Solvingundeterminedproblems”onpage135.
Themonitorworkswhen
youturnontheserver,but
thescreengoesblankwhen
youstartsomeapplication
programs.
1.Makesurethat:
•Theapplicationprogramisnotsettingadisplaymodethatishigherthan
thecapabilityofthemonitor.
•Youinstalledthenecessarydevicedriversfortheapplication.
2.Runvideodiagnostics(see“RunningtheDSAPrebootdiagnosticprograms”
onpage119
).
•Iftheserverpassesthevideodiagnostics,thevideoisgood;see“Solving
undeterminedproblems”onpage135
.
•(Trainedtechnicianonly)Iftheserverfailsthevideodiagnostics,replace
thesystemboard.
Themonitorhasscreen
jitter,orthescreenimageis
wavy,unreadable,rolling,or
distorted.
1.Ifthemonitorself-testsshowthatthemonitorisworkingcorrectly,consider
thelocationofthemonitor.Magneticfieldsaroundotherdevices(suchas
transformers,appliances,fluorescents,andothermonitors)cancausescreen
jitterorwavy,unreadable,rolling,ordistortedscreenimages.Ifthishappens,
turnoffthemonitor.
Attention:Movingacolormonitorwhileitisturnedonmightcausescreen
discoloration.
Movethedeviceandthemonitoratleast305mm(12in.)apart,andturnon
themonitor.
Notes:
a.Topreventdiskettedriveread/writeerrors,makesurethatthedistance
betweenthemonitorandanyexternaldiskettedriveisatleast76mm(3in.).
b.Non-Lenovomonitorcablesmightcauseunpredictableproblems.
2.Reseatthemonitorcable.
3.Replacethecomponentslistedinstep2oneatatime,intheordershown,
restartingtheservereachtime:
a.Monitorcable
b.Videoadapter(ifoneisinstalled)
c.Monitor
d.(Trainedtechnicianonly)Systemboard.
Wrongcharactersappearon
thescreen.
1.Ifthewronglanguageisdisplayed,updatetheserverfirmwaretothelatestlevel
(see“Updatingthefirmware”onpage83
)withthecorrectlanguage.
2.Reseatthemonitorcable.
128LenovoSystemx3650M4BDInstallationandServiceGuide