Lenovo ThinkCentre Edge 91z - Monitor Problems

Iftheseactionsdonotcorrecttheproblem,runthediagnosticprograms(see“Diagnosticprograms”on
page71forinstructions).Ifyouneedtechnicalassistance,seeChapter11“Gettinginformation,help,
andservice”onpage75.
Invaliddiscornodiscfoundmessage
Symptom:Invaliddiscornodiscfoundmessage
Actions:
•EnsurethataDVDdiscisinthedrivewiththeshinysideofthediscfacingdown.
•Ensurethatvideoresolutionissettolessthan1152x864.
•OncomputersthathaveaCD-ROMorCD-RWdriveinadditiontoaDVD-ROMdrive,makesurethatthe
DVDdiscisinthedrivelabeled“DVD”.
Iftheseactionsdonotcorrecttheproblem,runthediagnosticprograms(see“Diagnosticprograms”on
page71
forinstructions).Ifyouneedtechnicalassistance,seeChapter11“Gettinginformation,help,
andservice”onpage75
.
Intermittentproblems
Symptom:Aproblemoccursonlyoccasionallyandisdifculttorepeat.
Actions:
•Verifythatallcablesandcordsaresecurelyconnectedtothecomputerandattacheddevices.
•Verifythatwhenthecomputerison,thefangrillisnotblocked(thereisairowaroundthegrill),andthe
fansareworking.Ifairowisblockedorthefansarenotworking,thecomputermightoverheat.
•IfSCSIdevicesareinstalled,verifythatthelastexternaldeviceineachSCSIchainisterminatedcorrectly.
(SeeyourSCSIdocumentation.)
Iftheseactionsdonotcorrecttheproblem,runthediagnosticprograms(see“Diagnosticprograms”on
page71forinstructions).Ifyouneedtechnicalassistance,seeChapter11“Gettinginformation,help,
andservice”onpage75
.
Keyboard,mouse,orpointingdeviceproblems
Selectyoursymptomfromthefollowinglist:
•“Allorsomekeysonthekeyboarddonotwork”onpage61
•“Themouseorpointingdevicedoesnotwork”onpage62
•“Thepointeronthescreendoesnotmovesmoothlywiththemouse”onpage62
•“Thengerprintreaderdoesnotwork”onpage62
•“Thewirelesskeyboarddoesnotwork”onpage62
Allorsomekeysonthekeyboarddonotwork
Symptom:Allorsomekeysonthekeyboarddonotwork.
Actions:
•Verifythatthekeyboardcableissecurelyconnectedtothecorrectconnectoronthecomputer.
•IfyouareusinganEnhancedPerformanceUSBkeyboardandoneormoreoftheRapidAccessbuttons
aretheonlykeysthatarenotworking,thesebuttonsmighthavebeendisabledorhavenotbeenassigned
Chapter10.Troubleshootinganddiagnostics61