SymptomAction
Themousedoesnotwork.Verifythat:
•Thecomputeristurnedon.
•Themouseiscorrectlyconnectedtoanappropriatemouseconnector(thePS/2
mouseconnectororoneoftheUSBconnectors)onthecomputer.
•Themouseisclean.Referto“Cleaningthemouse”onpage72.
Theoperatingsystemdoesnot
start.
Verifythatyoulistthedevicewheretheoperatingsystemresidesinthestartup
devicesequence.Usually,theoperatingsystemisontheharddiskdrive.Formore
information,see“Selectingastartupdevice”onpage63.
Thecomputerbeepsmultiple
timesbeforetheoperating
systemstarts.
Verifythatnokeysar estuck.
Diagnosticprogr ams
Diagnosticprogramsareusedtotesthardwarecomponentsofyourcomputer.Diagnosticprogramscan
alsoreportoperating-system-controlledsettingsthatinterferewiththecorrectoperationofyoursystem.
Youcanusethepreinstalleddiagnosticprogramtodiagnosecomputerproblems,ifyourcomputeris
runningtheWindowsoper atingsystem.
Notes:
1.Dependingonthedatewhenyourcomputerwasmanufactured,yourcomputerispreinstalledwith
eithertheLenovoSolutionCenterprogramortheLenovoThinkVantageToolboxprogramfordiagnostic
purposes.FormoreinformationabouttheLenovoThinkV antageToolboxprogram,see“Lenovo
ThinkVantageToolbox”onpage71.FormoreinformationabouttheLenovoSolutionCenterprogram,
see“LenovoSolutionCenter”onpage70.
2.Y oucanalsodownloadthePC-DoctorforDOSdiagnosticprogramfromhttp://www.lenovo.com/support.
See“PC-DoctorforDOS”onpage71fordetailedinformation.
3.Ifyouareunabletoisolateandrepairtheproblemyourselfafterrunningtheprograms,saveandprint
theloglescreatedbytheprograms.Y ouwillneedthelogleswhenyouspeaktoaL enovotechnical
supportrepresentative.
LenovoSolutionCenter
TheLenovoSolutionCenterpr ogramenablesyoutotroubleshootandresolvecomputerproblems.It
combinesdiagnostictests,systeminformationcollection,securitystatus,andsupportinformation,along
withhintsandtipsformaximumsystemperformance.
Notes:
•TheLenovoSolutionCenterprogramisavailableonlyonmodelspreinstalledwiththeWindows7
operatingsystem.IfyourWindows7modelisnotpreinstalledwiththeprogram,youcandownloadit
fromhttp://www.lenovo.com/diagnose.
•IfyouareusingtheWindowsVistaorWindowsXPoperatingsystem,goto
http://www.lenovo.com/diagnoseforthelatestinformationondiagnosticsforyour
computer.
ToruntheLenovoSolutionCenterprogramontheWindows7operatingsystem,clickStart➙AllPrograms
➙LenovoThinkVantageTools➙SystemHealthandDiagnostics.F ollowtheinstructionsonthescreen.
Foradditionalinformation,refertotheLenovoSolutionCenterhelpsystem.
70ThinkCentreUserGuide