SymptomAction
Themousedoesnotwork.Verifythat:
•Thecomputeristurnedon.
•Themouseiscorrectlyconnectedtoanappropriatemouseconnector(thePS/2
mouseconnectororoneoftheUSBconnectors)onthecomputer.
•Themouseisclean.Referto“Cleaningthemouse”onpage61.
Theoperatingsystemdoesnot
start.
Verifythatyoulistthedevicewheretheoperatingsystemresidesinthestartup
devicesequence.Usually,theoperatingsystemisontheharddiskdrive.Formore
information,see“Selectingastartupdevice”onpage53.
Thecomputerbeepsmultiple
timesbeforetheoperating
systemstarts.
Verifythatnokeysar estuck.
Diagnosticprogr ams
Diagnosticprogramsareusedtotesthardwarecomponentsofyourcomputer.Diagnosticprogramscan
alsoreportoperating-system-controlledsettingsthatinterferewiththecorrectoperationofyoursystem.Y ou
canusethepreinstalledLenovoThinkVantageToolboxprogramtodiagnosecomputerpr oblems,ifyour
computerisrunningtheWindowsoperatingsystem.
Notes:
1.Y oucanalsodownloadthePC-DoctorforDOSdiagnosticprogramfromhttp://www.lenovo.com/support.
See“PC-DoctorforDOS”onpage60fordetailedinformation.
2.Ifyouareunabletoisolateandrepairtheproblemyourselfafterrunningtheprograms,saveandprint
theloglescreatedbytheprograms.Y ouwillneedthelogleswhenyouspeaktoaL enovotechnical
supportrepresentative.
LenovoThinkVantageT oolbox
TheLenovoThinkVantageToolboxprogramhelpsyoumaintainyourcomputer,improvecomputingsecurity,
diagnosecomputerproblems,getfamiliarwiththeinnovativetechnologiesprovidedbyLenovo,andget
moreinformationaboutyourcomputer.Y oucanusethediagnosticsfeatureoftheLenovoThinkVantage
Toolboxprogramt otestdevices,diagnosecomputerproblems,createbootablediagnosticmedia,update
systemdrivers,andviewsysteminformation.
•ToruntheLenovoThinkVantageToolboxprogramontheWindows7operatingsystem,clickStart➙All
Programs➙LenovoThinkVantageTools➙SystemHealthandDiagnostics.Followtheinstructions
onthescreen.
•ToruntheLenovoThinkVantageToolboxprogramontheWindowsVistaoperatingsystem,clickStart➙
AllPrograms➙ThinkVantage➙LenovoThinkVantageToolbox.Followtheinstructionsonthescreen.
Followtheinstructionsonthescreen.Foradditionalinformation,refertotheLenovoThinkVantageToolbox
helpsystem.
PC-DoctorforDOS
YoucanalsodownloadthelatestversionofthePC-DoctorforDOSdiagnosticprogramfrom
http://www.lenovo.com/support.ThePC-DoctorforDOSdiagnosticprogramrunsindependentlyofthe
Windowsoperatingsystem.UsethePC-DoctorforDOSdiagnosticprogramifyouareunabletostartthe
Windowsoperatingsystem.Y oucanrunthePC-DoctorforDOSdiagnosticpr ogramfromadiagnostic
discthatyoucreated.
60ThinkCentreUserGuide