Personal Computer User Manual

Table Of Contents
Intermittentproblems
Symptom:Aproblemoccursonlyoccasionallyandisdifculttorepeat.
Actions:
Verifythatallcablesandcordsaresecurelyconnectedtothecomputerandattacheddevices.
Verifythatwhenthecomputerison,thefangrillisnotblocked(thereisairowaroundthegrill),andthe
fansareworking.Ifairowisblockedorthefansarenotworking,thecomputermightoverheat.
IfSCSIdevicesareinstalled,verifythatthelastexternaldeviceineachSCSIchainisterminatedcorrectly.
(SeeyourSCSIdocumentation.)
Iftheseactionsdonotcorrecttheproblem,runtheLenovoSolutionCenterprogram.Ifyouneedtechnical
assistance,seeChapter12“Gettinginformation,help,andservice”onpage103.
Keyboard,mouse,orpointingdeviceproblems
Selectyoursymptomfromthefollowinglist:
Allorsomekeysonthekeyboarddonotwork”onpage91
“Themouseorpointingdevicedoesnotwork”onpage91
“Thepointeronthescreendoesnotmovesmoothlywiththemouse”onpage92
“Thengerprintreaderdoesnotwork”onpage92
“Thewirelesskeyboarddoesnotwork”onpage92
Allorsomekeysonthekeyboarddonotwork
Symptom:Allorsomekeysonthekeyboarddonotwork.
Actions:
Verifythatthekeyboardcableissecurelyconnectedtothecorrectconnectoronthecomputer.
IfyouareusinganEnhancedPerformanceUSBkeyboardandoneormoreoftheRapidAccessbuttons
aretheonlykeysthatarenotworking,thesebuttonsmighthavebeendisabledorhavenotbeenassigned
toafunction.UsethehelpsystemintheEnhancedPerformanceCustomizationKeyboardprogramto
helpdiagnoseproblemswiththeRapidAccessbuttons.
OntheWindows7operatingsystem,dothefollowing:
1.ClickStartControlPanel.
2.ClickHardwareandSound.
3.ClickDevicesandPrinters.
4.Double-clickUSBEnhancedPerformanceKeyboard.TheUSBEnhancedPerformanceKeyboard
Customizationprogramstarts.
Iftheseactionsdonotcorrecttheproblem,havethecomputerandkeyboardserviced.SeeChapter12
“Gettinginformation,help,andservice”onpage103fordetails.
Themouseorpointingdevicedoesnotwork
Symptom:Themouseorpointingdevicedoesnotwork.
Actions:
Verifythatthemouseorpointing-devicecableissecurelyattachedtothecorrectconnectoronthe
computer.Dependingonthetypeofmouseyouhave,themousecablewillconnecttoeitherthe
Chapter11.Troubleshootinganddiagnostics91