User guide

Solution:Yourscreensaverorpowermanagementmighthavebeenenabled.Doeitherofthefollowing:
–TouchtheTrackPointpointingdeviceortheThinkPadtrackpad,orpressakeytoexitthescreensaver.
–Pressthepowerbuttontoresumethecomputerfromsleeporhibernationmode.
Beeperrors
Table7.Beeperrors
Problem
Solution
Oneshortbeep,pause,threeshortbeeps,pause,three
moreshortbeeps,andoneshortbeep
Havethecomputerserviced.
Threeshortbeeps,pause,oneshortbeep,pause,one
moreshortbeep,andthreeshortbeeps
Turnoffthecomputerandremovethedevicefromthe
ExpressCardslot.Ifthebeepspersist,havethecomputer
serviced.
Onelongandtwoshortbeeps
Thevideofunctionhasaproblem.Havethecomputer
serviced.
FourcyclesoffourshortbeepsTurnoffthecomputerimmediatelyandhavethecomputer
serviced.
FiveshortbeepsThesystemboardhasaproblem.Havethecomputer
serviced.
Memorymoduleproblems
Printtheseinstructionsnowandkeeptheinstructionswithyourcomputerforreferencelater.
Ifyourmemorymoduleisnotoperatingproperly,checkthefollowingitems:
1.Verifythatthememorymoduleisinstalledandseatedcorrectlyinyourcomputer.
Itmightbenecessarytoremovealladdedmemorymodulestotestthecomputerwithonlythe
factory-installedmemorymodules,andthenreinstallthememorymoduleoneatatimetoensure
aproperconnection.
2.Checkforerrormessagesduringstartup.
Followtheappropriatecorrectiveactionsforpower-onself-test(POST)errormessages.
3.VerifythatthelatestUEFIBIOSforyourmodelhasbeeninstalled.
4.Verifythepropermemoryconfigurationandcompatibilityincludingthemaximummemorysizeandthe
memoryspeed.
5.Rundiagnosticprograms.See“Diagnosingproblems”onpage131.
Networkingproblems
Thefollowingarethemostcommonnetworkingproblems:
Ethernetproblems
•Problem:Yourcomputercannotconnecttothenetwork.
Solution:Makesurethat:
–Thecableisinstalledcorrectly.
ThenetworkcablemustbesecurelyconnectedbothtotheEthernetconnectorofyourcomputerand
totheRJ45connectorofthehub.Themaximumallowabledistancefromthecomputertohubis
100meters.Ifthecableisconnectedandthedistanceiswithinacceptablelimitsbuttheproblem
persists,tryadifferentcable.
Chapter10.Troubleshootingcomputerproblems135