Beeperrors
Table5.Beeperrors
Beeps
Solution
Oneshortbeep,pause,threeshortbeeps,pause,three
moreshortbeeps,pause,andoneshortbeep(1-3-3-1
beeps)
Memoryproblem.Shutdownthecomputerimmediately
andhavethecomputerserviced.
Fourcyclesoffourshortbeeps
TCG
*
-compliantfunctionality-relatedproblem(mightbe
theTPMinitializationfailure).Shutdownthecomputer
immediatelyandhavethecomputerserviced.
*
TCGistheabbreviationforTrustedComputingGroup.
Fiveshortbeeps,pause,fivemoreshortbeeps,and
pause
TCG-compliantfunctionality-relatedproblem(might
betheBIOScodevalidationfailure).Shutdownthe
computerimmediatelyandhavethecomputerserviced.
Memorymoduleproblems
Printtheseinstructionsnowandkeeptheinstructionswithyourcomputerforreferencelater.
Ifyourmemorymoduleisnotoperatingproperly,checkthefollowingitems:
1.Verifythatthememorymoduleisinstalledandseatedcorrectlyinyourcomputer.
Itmightbenecessarytoremovealladdedmemorymodulestotestthecomputerwithonlythe
factory-installedmemorymodules,andthenreinstallthememorymoduleoneatatimetoensure
aproperconnection.
2.Checkforerrormessagesduringstartup.
Followtheappropriatecorrectiveactionsforpower-onself-test(POST).See“Errormessages”on
page78.
3.VerifythatthelatestUEFIforyourmodelhasbeeninstalled.
4.Verifythepropermemoryconfigurationandcompatibilityincludingthemaximummemorysizeandthe
memoryspeed.
5.Rundiagnosticprograms.See“Diagnosingproblems”onpage77.
Networkingproblems
Thefollowingarethemostcommonnetworkingproblems.
Ethernetproblems
•Problem:Thecomputercannotconnecttothenetwork.
Solution:Makesurethat:
–Thecableisinstalledcorrectly.
ThenetworkcablemustbesecurelyconnectedbothtotheEthernetconnectorofyourcomputerand
totheRJ45connectorofthehub.Themaximumallowabledistancefromthecomputertohubis
100meters.Ifthecableisconnectedandthedistanceiswithinacceptablelimitsbuttheproblem
persists,tryadifferentcable.
–Youareusingthecorrectdevicedriver.Toinstallthecorrectdriver,dothefollowing:
1.OpenControlPanelandclickHardwareandSound➙DeviceManager.Ifyouarepromptedfor
anadministratorpasswordorconfirmation,typethepasswordorprovideconfirmation.
Chapter8.Troubleshootingcomputerproblems81