SymptomAction
Themousedoesnotwork.
Verifythat:
•Thecomputeristurnedon.
•Themouseiscorrectlyconnectedtoanappropriatemouseconnector(thePS/2
mouseconnectororoneoftheUSBconnectors)onthecomputer.
•Themouseisclean.Referto“Cleaningthemouse”onpage57
.
Theoperatingsystemdoesnot
start.
Verifythatyoulistthedevicewheretheoperatingsystemresidesinthestartup
devicesequence.Usually,theoperatingsystemisontheharddiskdrive.Formore
information,see“Selectingastartupdevice”onpage49
.
Thecomputerbeepsmultiple
timesbeforetheoperating
systemstarts.
Verifythatnokeysarestuck.
Diagnosticprograms
Diagnosticprogramsareusedtotesthardwarecomponentsofyourcomputer.Diagnosticprogramscan
alsoreportoperating-system-controlledsettingsthatinterferewiththecorrectoperationofyoursystem.Y ou
canusethepreinstalledLenovoThinkVantageToolboxprogramtodiagnosecomputerproblems,ifyour
computerisrunningtheWindowsoperatingsystem.
Notes:
1.YoucanalsodownloadthePC-DoctorforDOSdiagnosticprogramfromhttp://www.lenovo.com/support.
See“PC-DoctorforDOS”onpage56fordetailedinformation.
2.Ifyouareunabletoisolateandrepairtheproblemyourselfafterrunningtheprograms,saveandprint
theloglescreatedbytheprograms.YouwillneedthelogleswhenyouspeaktoaLenovotechnical
supportrepresentative.
LenovoThinkVantageToolbox
TheLenovoThinkVantageToolboxprogramhelpsyoumaintainyourcomputer,improvecomputingsecurity,
diagnosecomputerproblems,getfamiliarwiththeinnovativetechnologiesprovidedbyLenovo,andget
moreinformationaboutyourcomputer.Y oucanusethediagnosticsfeatureoftheLenovoThinkVantage
Toolboxprogramtotestdevices,diagnosecomputerproblems,createbootablediagnosticmedia,update
systemdrivers,andviewsysteminformation.
•ToruntheLenovoThinkVantageT oolboxprogramontheWindows7operatingsystem,clickStart➙All
Programs➙LenovoThinkVantageTools➙SystemHealthandDiagnostics.Followtheinstructions
onthescreen.
•ToruntheLenovoThinkVantageToolboxprogramontheWindowsVistaoperatingsystem,clickStart➙
AllPrograms➙ThinkVantage➙LenovoThinkVantageT oolbox.Followtheinstructionsonthescreen.
Followtheinstructionsonthescreen.Foradditionalinformation,refertotheLenovoThinkVantageToolbox
helpsystem.
PC-DoctorforDOS
YoucanalsodownloadthelatestversionofthePC-DoctorforDOSdiagnosticprogramfrom
http://www.lenovo.com/support.ThePC-DoctorforDOSdiagnosticprogramrunsindependentlyofthe
Windowsoperatingsystem.UsethePC-DoctorforDOSdiagnosticprogramifyouareunabletostartthe
Windowsoperatingsystem.YoucanrunthePC-DoctorforDOSdiagnosticprogramfromadiagnostic
discthatyoucreated.
56ThinkCentreUserGuide
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