–Theacpoweradapterisconnectedtothecomputerandthepowercordispluggedintoaworking
electricaloutlet.
–Thecomputeristurnedon.(T urnthepowerbuttononagainforconrmation.)
Ifapower-onpasswordisset:
–Pressanykeytodisplaythepromptforthepower-onpassword.Ifthebrightnesslevelofthescreen
islow,increaseitbypressingHome.
–TypethecorrectpasswordandpressEnt er.
Iftheseitemsarecorrectlyset,andthescreenremainsblank,havethecomputerserviced.
•Problem:WhenIturnonthecomputer,onlyawhitecursorisdisplayedonablankscreen.
Solution:Ifyouhavemodiedapartitiononyourhar ddiskdrivebyusingpartitionsoftwar e,information
aboutthatpartition,orthemasterbootrecordmighthavebeendestroyed.
1.Turnoffthecomputer,andthenturnitonagain.
2.Ifyoustillseeonlythecursoronthescreen,dothefollowing:
–Ifyouhaveusedthepartitionsoftware,examinethepartitiononthehar ddiskdrivebyusingthe
software,andrecoverthepartitionifrequired.
–Resetyourcomputertothefactorystate.Formoreinformation,seeChapter5“Recovery
overview”onpage47.
Iftheproblempersists,havethecomputerserviced.
•Problem:Myscreengoesblankwhilethecomputerison.
Solution:Y ourscr eensaverorpowermanagementmighthavebeenenabled.Doeitherofthefollowing:
–TouchtheTrackPointpointingdeviceorthet ouchpad,orpressakeytoe xitthescreensaver.
–Pressthepowerbuttontor esumefromsleep.
Beeperrors
Table5.Beeperrors
ProblemSolution
Oneshortbeep,pause,threeshortbeeps,pause,three
moreshortbeeps,andoneshortbeep
Ensurethatmemorymodulesareinstalledcorrectly.If
theyare,andyoustillhearthebeeps,havethecomputer
serviced.
Threeshortbeeps,pause,oneshortbeep,pause,one
moreshortbeep,andthreeshortbeeps
PCIresourceallocationfailur e.Poweroffthecomputer
andremovethePCIdevices.Ifthebeepspersist,have
thecomputerserviced.
OnelongandtwoshortbeepsThevideofunctionhasapr oblem.Havethecomputer
serviced.
FourcyclesoffourshortbeepsTheSecurityChiphasaproblem.Havethecomputer
serviced.
FiveshortbeepsThesyst emboar dhasaproblem.Havethecomputer
serviced.
Fiveshortbeeps,pause,veshortbeeps,andpauseContinuetobootimmediatelywhentheerrorwas
detected.
Memorymoduleproblems
Printtheseinstructionsnowandkeepitwithyourcomputerforrefer encelater .
Chapter9.Troubleshootingcomputerproblems91