Iftheseitemsarecorrectlyset,andthescreenremainsblank,havethecomputerserviced.
•Problem:WhenIturnonthecomputer,onlyawhitecursorisdisplayedonablankscreen.
Solution:Ifyouhavemodifiedapartitiononyourharddiskdriveorhybriddrivebyusingpartition
software,informationaboutthatpartition,orthemasterbootrecordmighthavebeendestroyed.
1.Turnoffthecomputer,andthenturnitonagain.
2.Ifyoustillseeonlythecursoronthescreen,dothefollowing:
–Ifyouhaveusedthepartitionsoftware,examinethepartitionontheharddiskdriveorhybriddrive
byusingthesoftware,andrecoverthepartitionifrequired.
–Usetherecoverysolutionstorestorethesystemtothefactorydefaultstate.
Iftheproblempersists,havethecomputerserviced.
•Problem:Myscreengoesblankwhilethecomputerison.
Solution:Yourscreensaverorpowermanagementmighthavebeenenabled.Doeitherofthefollowing:
–TouchtheTrackPointpointingdeviceortheThinkPadtrackpad,orpressakeytoexitthescreensaver.
–Pressthepowerbuttontoresumefromsleeporhibernation.
Beeperrors
Table7.Beeperrors
Problem
Solution
Oneshortbeep,pause,threeshortbeeps,pause,three
moreshortbeeps,andoneshortbeep
Ensurethatmemorymodulesareinstalledcorrectly.If
theyare,andyoustillhearthebeeps,havethecomputer
serviced.
Threeshortbeeps,pause,oneshortbeep,pause,one
moreshortbeep,andthreeshortbeeps
PCIresourceallocationfailure.Poweroffthecomputer
andremovethePCIdevices.Ifthebeepspersist,have
thecomputerserviced.
Onelongandtwoshortbeeps
Thevideofunctionhasaproblem.Havethecomputer
serviced.
Fourcyclesoffourshortbeeps
TheSecurityChiphasaproblem.Havethecomputer
serviced.
FiveshortbeepsThesystemboardhasaproblem.Havethecomputer
serviced.
Fiveshortbeeps,pause,fiveshortbeeps,andpause
Continuetobootimmediatelywhentheerrorwas
detected.
Memorymoduleproblems
Printtheseinstructionsnowandkeeptheinstructionswithyourcomputerforreferencelater.
Ifyourmemorymoduleisnotoperatingproperly,checkthefollowingitems:
1.Verifythatthememorymoduleisinstalledandseatedcorrectlyinyourcomputer.
Itmightbenecessarytoremovealladdedmemorymodulestotestthecomputerwithonlythe
factory-installedmemorymodules,andthenreinstallthememorymoduleoneatatimetoensure
aproperconnection.
2.Checkforerrormessagesduringstartup.
Followtheappropriatecorrectiveactionsforpower-onself-test(POST)errormessages.
3.VerifythatthelatestUEFIBIOSforyourmodelhasbeeninstalled.
Chapter10.Troubleshootingcomputerproblems109