Computer Hardware User Manual

Chapter4.GeneralCheckout

Attention

Thedrivesinthecomputeryouareservicingmighthavebeenrearrangedorthedrivestartupsequencemight

havebeenchanged.Beextremelycarefulduringwriteoperationssuchascopying,saving,orformatting.

Dataorprogramscanbeoverwrittenifyouselectanincorrectdrive.

Generalerrormessagesappearifaproblemorconictisfoundbyanapplicationprogram,theoperating

system,orboth.Foranexplanationofthesemessages,refertotheinformationsuppliedwiththatsoftware

package.

BeforereplacingaFRU,ensurethatthelatestlevelofBIOSisinstalledonthesystem.Adown-levelBIOS

mightcausefalseerrorsandunnecessaryreplacementofthesystemboard.Formoreinformationonhowto

determineandobtainthelatestlevelBIOS,see“BIOSlevels”onpage105

Usethefollowingproceduretohelpdeterminethecauseofaproblem:

1.Turnoffthecomputerandallexternaldevices.

2.Checkallcablesandpowercords.

3.Setalldisplaycontrolstothemiddleposition.

4.Turnonallexternaldevices.

5.Turnonthecomputer.

•Lookfordisplayederrorcodes

•Listenforbeepcodes

•Lookforreadableinstructionsoramainmenuonthedisplay.

Ifyoudidnotreceivethecorrectresponse,proceedtostep6onpage33

Ifyoudoreceivethecorrectresponse,proceedtostep7onpage33.

6.Lookatthefollowingconditionsandfollowtheinstructions:

•IfyouhearbeepcodesduringPOST,goto“Beepsymptoms”onpage49

•IfthecomputerdisplaysaPOSTerror,goto“POSTerrorcodes”onpage50.

•Ifthecomputerhangsandnoerrorisdisplayed,continueatstep7onpage33.

7.RuntheDiagnosticprograms.SeeChapter5“Diagnostics”onpage35.

•Iftheteststopsandyoucannotcontinue,replacethelastdevicetested.

Problemdeterminationtips

Duetothevarietyofhardwareandsoftwarecombinationsthatcanbeencountered,usethefollowing

informationtoassistyouinproblemdetermination.Ifpossible,havethisinformationavailablewhen

requestingassistancefromServiceSupportandEngineeringfunctions.

•Machinetypeandmodel

•Processororharddiskdriveupgrades

•Failuresymptom

–Dodiagnosticsindicateafailure?

–What,when,where,single,ormultiplesystems?

–Isthefailurerepeatable?

–Hasthiscongurationeverworked?