Chapter4.GeneralCheckout
Attention
Thedrivesinthecomputeryouareservicingmighthavebeenrearrangedorthedrivestartupsequence
changed.Beextr emelycarefulduringwriteoperationssuchascopying,saving,orformatting.Dataor
programscanbeoverwrittenifyouselectanincorrectdrive.
Generalerrormessagesappearifaproblemorconictisfoundbyanapplicationprogram,theoperating
system,orboth.Foranexplanationofthesemessages,refertotheinformationsuppliedwiththatsoftware
package.
BeforereplacinganyFRUs,ensurethatthelatestlevelofBIOSisinstalledonthesystem.Adown-levelBIOS
mightcausefalseerrorsandunnecessaryreplacementofthesystemboard.Formoreinformationonhowto
determineandobtainthelatestlevelBIOS,see“BIOSlevels”onpage139.
Usethefollowingproceduretohelpdeterminethecauseoftheproblem:
1.Power-offthecomputerandallexternaldevices.
2.Checkallcablesandpowercords.
3.Setalldisplaycontrolstothemiddleposition.
4.Power-onallext ernaldevices.
5.Power-onthecomputer .
•Lookfordisplayederrorcodes
•Listenforbeepcodes
•Lookforreadableinstructionsoramainmenuonthedisplay .
Ifyoudidnotreceivethecorrectresponse,proceedtostep6onpage31.
Ifyoudoreceivethecorrectresponse,runthediagnostics..See“RunningdiagnosticsfromtheCDor
diskettes”onpage34.
6.Lookatthefollowingconditionsandfollowtheinstructions:
•IfyouhearbeepcodesduringPOST ,goto“Beepsymptoms”onpage59.
•IfthecomputerdisplaysaPOSTerr or,goto“POSTerrorcodes”onpage60.
•Ifthecomputerhangsandnoerrorisdisplayed,goto“Powerproblems”onpage31.

Checkingforpowerproblems

Ifthecomputerdoesnotturnonwhenthepowerswitchispressed,usethefollowingproceduretohelp
troubleshoot.
1.Pressthepowerswitchtoturnonthecomputer.CheckthepowerindicatorLEDnexttothepowerswitch.
•IftheLEDisilluminated(on),thecomputerpowerisOK.Attempttorunthediagnostics.See“Running
diagnosticsfromtheCDordiskettes”onpage34.
•IftheLEDisnotilluminated(off),gotostep2onpage31
2.CheckthestatusofthepowerindicatorLEDontheAC/DCpoweradapter.
•IftheLEDisilluminated(on),gotostep7onpage32.
•IftheLEDisnotilluminated(off),gotothenextstep3onpage31.
3.VerifythatthepowercordisproperlyconnectedtoanACpoweroutlet.
4.VerifythatyouareusingagoodACpoweroutlet.Pluganotherdeviceintotheoutletorcontactthepower
companyorsuppliertoverifythattheoutletisworkingcorrectly.
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