Lenovo E545 Guide de l'utilisateur Page 133

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Problem:WhenIturnonthecomputer,nothingisdisplayedonthescreenandthecomputerdoesnot
beepwhilestartingup.
Note:Ifyouarenotsurewhetheryouheardanybeeps,turnoffthecomputerbypressingandholdingthe
powerbuttonforfoursecondsormore.Turnitonandlistenagain.
Solution:Makesurethat:
Thebatteryisinstalledcorrectly.
Theacpoweradapterisconnectedtothecomputerandthepowercordispluggedintoaworking
electricaloutlet.
Thecomputeristurnedon.(Turnthepowerbuttononagainforconrmation.)
Ifapower-onpasswordisset:
Pressanykeytodisplaythepromptforthepower-onpassword.Ifthebrightnesslevelofthescreen
islow,increaseitbypressingHome.
TypethecorrectpasswordandpressEnter.
Iftheseitemsarecorrectlyset,andthescreenremainsblank,havethecomputerserviced.
Problem:WhenIturnonthecomputer,onlyawhitecursorisdisplayedonablankscreen.
Solution:Ifyouhavemodiedapartitiononyourharddiskdrivebyusingpartitionsoftware,information
aboutthatpartition,orthemasterbootrecordmighthavebeendestroyed.
1.Turnoffthecomputer,andthenturnitonagain.
2.Ifyoustillseeonlythecursoronthescreen,dothefollowing:
Ifyouhaveusedthepartitionsoftware,examinethepartitionontheharddiskdrivebyusingthe
software,andrecoverthepartitionifrequired.
IfyoursystemisinstalledwiththeWindows7operatingsystem,useeithertheOneKeyRecovery
Proworkspaceortherecoverydiscstorestorethesystemtothefactorystate.
IfyoursystemisinstalledwiththeWindows8operatingsystem,useeithertheRemoveeverything
andreinstallWindowsfunctionortherecoverydiscstorestorethesystemtothefactorystate.
Iftheproblempersists,havethecomputerserviced.
Problem:Myscreengoesblankwhilethecomputerison.
Solution:Yourscreensaverorpowermanagementmighthavebeenenabled.Doeitherofthefollowing:
TouchtheTrackPointpointingdeviceorthetouchpad,orpressakeytoexitthescreensaver.
Pressthepowerbuttontoresumefromsleeporhibernation.
Beeperrors
Table7.Beeperrors
Problem
Solution
Oneshortbeep,pause,threeshortbeeps,pause,three
moreshortbeeps,andoneshortbeep
Makesurethatmemorymodulesareinstalledcorrectly.If
theyare,andyoustillhearthebeeps,havethecomputer
serviced.
Onelongandtwoshortbeeps
Thevideofunctionhasaproblem.Havethecomputer
serviced.
FivebeepsThesystemboardhasaproblem.Havethecomputer
serviced.
Chapter9.Troubleshootingcomputerproblems117
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