Solution:Coolingfanhasfailed.Shutdownthecomputerimmediatelyandhavethecomputerserviced.
•Message:Thermalsensingerror
Solution:Thethermalsensorhasproblem.Shutdownthecomputerimmediatelyandhavethecomputer
serviced.
•Message:ThissystemdoesnotsupportbatteriesthatarenotgenuineLenovomadeorauthorized.The
systemwillcontinuetoboot,butmaynotchargeunauthorizedbatteries.PresstheESCkeytocontinue.
Attention:Lenovohasnoresponsibilityfortheperformanceorsafetyofunauthorizedbatteries,and
providesnowarrantiesforfailuresordamagearisingoutoftheiruse.
Solution:ReplacethebatterywiththecorrectLenovobatteryforthiscomputer.Ifyoustillseethesame
errormessage,contactL enovoservicetohavethecomputerserviced.
•Message:Thebatteryinstalledisnotsupportedbythissystemandwillnotcharge.Pleasereplacethe
batterywiththecorrectLenovobatteryforthissystem.PresstheESCkeytocontinue.
Solution:ReplacethebatterywiththecorrectLenovobatteryforthiscomputer.Ifyoustillseethesame
errormessage,contactL enovoservicetohavethecomputerserviced.
Errorswithoutmessages
•Problem:MyscreenkeepsblankingwhenIdonotwantitto.
Solution:IfyousystemispreinstalledwiththeWindows7operatingsystem,youcandisableanysystem
timers,suchastheLCDturn-offtimerortheblanktimerbydoingthefollowing:
1.S tartPowerManager.
2.ClickthePowerplantab,andthenselectMaximumPerformancefromthepredenedpowerplans.
•Problem:WhenIturnonthecomputer,nothingisdisplayedonthescreenandthecomputerdoesnot
beepwhilestartingup.
Note:Ifyouarenotsurewhetheryouheardanybeeps,turnoffthecomputerbypressingandholdingthe
powerswitchforfoursecondsormore.Turnitonandlistenagain.
Solution:Makesurethat:
–Thebatteryisinstalledcorrectly .
–Theacpoweradapterisconnectedtothecomputerandthepowercordispluggedintoaworking
electricaloutlet.
–Thecomputeristurnedon.(Turnthepowerswitchonagainforconrmation.)
Ifapower-onpasswordisset:
–Pressanykeytodisplaythepromptforthepower-onpassword.Ifthebrightnesslevelofthescreen
islow,increaseitbypressingHome.
–TypethecorrectpasswordandpressEnter.
Iftheseitemsarecorrectlyset,andthescreenremainsblank,havethecomputerserviced.
•Problem:WhenIturnonthecomputer,onlyawhitecursorisdisplayedonablankscr een.
Solution:Ifyouhavemodiedapartitiononyourharddiskdrivebyusingpartitionsoftware,information
aboutthatpartition,orthemasterbootrecordmighthavebeendestroyed.
1.T urnoffthecomputer,andthenturnitonagain.
2.Ifyoustillseeonlythecursoronthescreen,dothefollowing:
–IfyoursystemisinstalledwiththeWindows7operatingsystem,useeithertheRescueand
Recoveryworkspaceortherecoverydiscstor estorethesystemtothefactorystate.
140UserGuide