Lenovo C325, C220, C225, C320 Hardware Maintenance Manual

LenovoC2/C3HardwareMaintenanceManual

Contents

Chapter1.Aboutthismanual.....1

ImportantSafetyInformation.........1

Chapter2.Safetyinformation.....3

Generalsafety...............3

Electricalsafety..............3

Safetyinspectionguide...........5

Handlingelectrostaticdischarge-sensitive

devices.................5

Groundingrequirements...........6

Safetynotices...............6

Chapter3.Generalinformation....9

Specications...............9

Chapter4.GeneralCheckout.....11

Problemdeterminationtips..........11

Chapter5.UsingtheSetupUtility...13

StartingtheSetupUtilityprogram.......13

Viewingandchangingsettings........13

Usingpasswords..............13

UsingDevice...............15

Selectingastartupdevice..........15

ExitingfromtheSetupUtilityprogram.....16

Chapter6.Symptom-to-FRUIndex..17

Harddiskdrivebooterror..........17

PowerSupplyProblems...........17

POSTerrorcodes.............18

Undeterminedproblems...........18

Chapter7.Replacinghardware....21

Generalinformation.............21

Hardwarecomponents...........22

Replacingamemorymodule.........26

Replacingtheopticaldrive..........27

Replacingtheharddiskdrive.........29

Replacingthekeyboardandmouse......31

Replacingthepowercord..........32

Removingthespeakercover.........32

Removingthecomputercover........34

Replacingtheconverterboard........35

Removingthecomputerstand........36

RemovingtheEMIcover...........37

Replacingthesystemfan..........38

ReplacingtheTVtunercard.........40

ReplacingtheWLANcard..........41

Replacingtheheatsink...........42

ReplacingtheCPU.............44

ReplacingtherearI/Omodule........46

Replacingthespeakersystem........48

Replacingthemotherboard..........49

Replacingthecamera............51

Replacingthefrontindicatorandpowerbutton

board..................52

Replacingthefrontfunctionboard.......53

ReplacingtheLEDpanel...........54

Chapter8.AdditionalService

Information..............57

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iiLenovoC2/C3HardwareMaintenanceManual

Chapter1.Aboutthismanual

ThismanualcontainsserviceandreferenceinformationforLenovoC220/C225/C320/C325computerslisted
onthecover.ItisintendedonlyfortrainedservicerswhoarefamiliarwithLenovocomputerproducts.

BeforeservicingaLenovoproduct,besuretoreadtheSafetyInformation.

ThedescriptionoftheTVcardinthismanualisonlyusedforthemachineswhichhavetheTVcard.Itis
invalidforthosemachineswhichdonothaveTVcard.

ImportantSafetyInformation

Besuretoreadallcautionanddangerstatementsinthisbookbeforeperforminganyoftheinstructions.

VeuillezliretouteslesconsignesdetypeDANGERetATTENTIONduprésentdocumentavantd’exécuter
lesinstructions.

LesenSieunbedingtalleHinweisevomT yp“ACHTUNG”oder“VORSICHT”indieserDokumentation,bevor
SieirgendwelcheVorgängedurchführen

LeggereleistruzioniintrodottedaATTENZIONEePERICOLOpresentinelmanualeprimadieseguireuna
qualsiasidelleistruzioni

Certique-sedelertodasasinstruçõesdecuidadoeperigonestemanualantesdeexecutarqualquer
umadasinstruções

Esimportantequeleatodaslasdeclaracionesdeprecauciónydepeligrodeestemanualantesdeseguir
lasinstrucciones.

执行任何说明之前，请确保已阅读本书中的所有警告和危险声明。

©CopyrightLenovo

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2LenovoC2/C3HardwareMaintenanceManual

Chapter2.Safetyinformation

Thischaptercontainsthesafetyinformationthatyouneedtobefamiliarwithbeforeservicingacomputer.

Generalsafety

Followtheserulestoensuregeneralsafety:

•Observegoodhousekeepingintheareaofthemachinesduringandaftermaintenance.

•Whenliftinganyheavyobject:

1.Ensureyoucanstandsafelywithoutslipping.

2.Distributetheweightoftheobjectequallybetweenyourfeet.

3.Useaslowliftingforce.Nevermovesuddenlyortwistwhenyouattempttolift.

4.Liftbystandingorbypushingupwithyourlegmuscles;thisactionremovesthestrainfromthe
musclesinyourback.

Donotattempttoliftanyobjectsthatweighmorethan16kg(35lb)orobjectsthatyouthinkare
tooheavyforyou.

•Donotperformanyactionthatcauseshazardstothecustomer,orthatmakestheequipmentunsafe.

•Beforeyoustartthemachine,ensurethatotherservicerepresentativesandthecustomer’spersonnelare
notinahazardousposition.

•Placeremovedcoversandotherpartsinasafeplace,awayfromallpersonnel,whileyouareservicing
themachine.

•Keepyourtoolcaseawayfromwalkareassothatotherpeoplewillnottripoverit.

•Donotwearlooseclothingthatcanbetrappedinthemovingpartsofamachine.Ensurethatyoursleeves
arefastenedorrolledupaboveyourelbows.Ifyourhairislong,fastenit.

•Inserttheendsofyournecktieorscarfinsideclothingorfastenitwithanonconductiveclip,approximately
8centimeters(3inches)fromtheend.

•Donotwearjewelry,chains,metal-frameeyeglasses,ormetalfastenersforyourclothing.
Remember:Metalobjectsaregoodelectricalconductors.

•Wearsafetyglasseswhenyouare:hammering,drillingsoldering,cuttingwire,attachingsprings,using
solvents,orworkinginanyotherconditionsthatmightbehazardoustoyoureyes.

•Afterservice,reinstallallsafetyshields,guards,labels,andgroundwires.Replaceanysafetydevice
thatiswornordefective.

•Reinstallallcoverscorrectlybeforereturningthemachinetothecustomer.

Electricalsafety

CAUTION:
Electricalcurrentfrompower,telephone,andcommunicationcablescanbehazardous.T oavoid
personalinjuryorequipmentdamage,disconnecttheattachedpowercords,telecommunication
systems,networks,andmodemsbeforeyouopenthecomputercovers,unlessinstructedotherwise
intheinstallationandcongurationprocedures.

Observethefollowingruleswhenworkingonelectricalequipment.

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Important:Useonlyapprovedtoolsandtestequipment.Somehandtoolshavehandlescoveredwithasoft
materialthatdoesnotinsulateyouwhenworkingwithliveelectricalcurrents.Manycustomershave,near
theirequipment,rubberoormatsthatcontainsmallconductiveberstodecreaseelectrostaticdischarges.
Donotusethistypeofmattoprotectyourselffromelectricalshock.

•Findtheroomemergencypower-off(EPO)switch,disconnectingswitch,orelectricaloutlet.Ifanelectrical
accidentoccurs,youcanthenoperatetheswitchorunplugthepowercordquickly.

•Donotworkaloneunderhazardousconditionsornearequipmentthathashazardousvoltages.

•Disconnectallpowerbefore:

–Performingamechanicalinspection

–Workingnearpowersupplies

–RemovingorinstallingFieldReplaceableUnits(FRUs)

•Beforeyoustarttoworkonthemachine,unplugthepowercord.Ifyoucannotunplugit,askthecustomer
topower-offthewallboxthatsuppliespowertothemachineandtolockthewallboxintheoffposition.

•Ifyouneedtoworkonamachinethathasexposedelectricalcircuits,observethefollowingprecautions:

–Ensurethatanotherperson,familiarwiththepower-offcontrols,isnearyou.

Remember:Anotherpersonmustbetheretoswitchoffthepower,ifnecessary.

–Useonlyonehandwhenworkingwithpowered-onelectricalequipment;keeptheotherhandinyour

pocketorbehindyourback.
Remember:Theremustbeacompletecircuittocauseelectricalshock.Byobservingtheaboverule,
youmaypreventacurrentfrompassingthroughyourbody.

–Whenusingatester,setthecontrolscorrectlyandusetheapprovedprobeleadsandaccessoriesfor

thattester.

–Standonsuitablerubbermats(obtainedlocally,ifnecessary)toinsulateyoufromgroundssuchas

metaloorstripsandmachineframes.

Observethespecialsafetyprecautionswhenyouworkwithveryhighvoltages;theseinstructionsarein
thesafetysectionsofmaintenanceinformation.Useextremecarewhenmeasuringhighvoltages.

•Regularlyinspectandmaintainyourelectricalhandtoolsforsafeoperationalcondition.

•Donotusewornorbrokentoolsandtesters.

•Neverassumethatpowerhasbeendisconnectedfromacircuit.First,checkthatithasbeenpowered-off.

•Alwayslookcarefullyforpossiblehazardsinyourworkarea.Examplesofthesehazardsaremoistoors,
nongroundedpowerextensioncables,powersurges,andmissingsafetygrounds.

•Donottouchliveelectricalcircuitswiththereectivesurfaceofaplasticdentalmirror.Thesurfaceis
conductive;suchtouchingcancausepersonalinjuryandmachinedamage.

•Donotservicethefollowingpartswiththepoweronwhentheyareremovedfromtheirnormaloperating
placesinamachine:

–Powersupplyunits

–Pumps

–Blowersandfans

–Motorgenerators

andsimilarunits.(Thispracticeensurescorrectgroundingoftheunits.)

•Ifanelectricalaccidentoccurs:

–Usecaution;donotbecomeavictimyourself.

–Switchoffpower.

–Sendanotherpersontogetmedicalaid.

4LenovoC2/C3HardwareMaintenanceManual

Safetyinspectionguide

Theintentofthisinspectionguideistoassistyouinidentifyingpotentiallyunsafeconditionsonthese
products.Eachmachine,asitwasdesignedandbuilt,hadrequiredsafetyitemsinstalledtoprotectusers
andservicepersonnelfrominjury.Thisguideaddressesonlythoseitems.However,goodjudgmentshould
beusedtoidentifypotentialsafetyhazardsduetoattachmentoffeaturesoroptionsnotcoveredbythis
inspectionguide.

Ifanyunsafeconditionsarepresent,youmustdeterminehowserioustheapparenthazardcouldbeand
whetheryoucancontinuewithoutrstcorrectingtheproblem.

Considertheseconditionsandthesafetyhazardstheypresent:

•Electricalhazards,especiallyprimarypower(primaryvoltageontheframecancauseseriousorfatal
electricalshock).

•Explosivehazards,suchasadamagedCRTfaceorbulgingcapacitor

•Mechanicalhazards,suchaslooseormissinghardware

Theguideconsistsofaseriesofstepspresentedinachecklist.Beginthecheckswiththepoweroff,and
thepowercorddisconnected.

Checklist:

1.Checkexteriorcoversfordamage(loose,broken,orsharpedges).

2.Power-offthecomputer.Disconnectthepowercord.

3.Checkthepowercordfor:

a.Athird-wiregroundconnectoringoodcondition.Useametertomeasurethird-wireground

continuityfor0.1ohmorlessbetweentheexternalgroundpinandframeground.

b.Thepowercordshouldbetheappropriatetypeasspeciedinthepartslistings.

c.Insulationmustnotbefrayedorworn.

4.Removethecover.

5.Checkforanyobviousalterations.Usegoodjudgmentastothesafetyofanyalterations.

6.Checkinsidetheunitforanyobviousunsafeconditions,suchasmetallings,contamination,wateror
otherliquids,orsignsofreorsmokedamage.

7.Checkforworn,frayed,orpinchedcables.

8.Checkthatthepower-supplycoverfasteners(screwsorrivets)havenotbeenremovedortamperedwith.

Handlingelectrostaticdischarge-sensitivedevices

Anycomputerpartcontainingtransistorsorintegratedcircuits(ICs)shouldbeconsideredsensitiveto
electrostaticdischarge(ESD).ESDdamagecanoccurwhenthereisadifferenceinchargebetweenobjects.
ProtectagainstESDdamagebyequalizingthechargesothatthemachine,thepart,theworkmat,andthe
personhandlingthepartareallatthesamecharge.

Notes:

1.Useproduct-specicESDprocedureswhentheyexceedtherequirementsnotedhere.

2.MakesurethattheESDprotectivedevicesyouusehavebeencertied(ISO9000)asfullyeffective.

WhenhandlingESD-sensitiveparts:

•Keepthepartsinprotectivepackagesuntiltheyareinsertedintotheproduct.

•Avoidcontactwithotherpeoplewhilehandlingthepart.

Chapter2.Safetyinformation5

•Wearagroundedwriststrapagainstyourskintoeliminatestaticonyourbody.

•Preventthepartfromtouchingyourclothing.Mostclothingisinsulativeandretainsachargeevenwhen
youarewearingawriststrap.

•Usetheblacksideofagroundedworkmattoprovideastatic-freeworksurface.Thematisespecially
usefulwhenhandlingESD-sensitivedevices.

•Selectagroundingsystem,suchasthoselistedbelow,toprovideprotectionthatmeetsthespecic
servicerequirement.

Note:TheuseofagroundingsystemisdesirablebutnotrequiredtoprotectagainstESDdamage.

–AttachtheESDgroundcliptoanyframeground,groundbraid,orgreen-wireground.

–UseanESDcommongroundorreferencepointwhenworkingonadouble-insulatedor

battery-operatedsystem.Y oucanusecoaxorconnector-outsideshellsonthesesystems.

–Usetheroundground-prongoftheacplugonac-operatedcomputers.

Groundingrequirements

Electricalgroundingofthecomputerisrequiredforoperatorsafetyandcorrectsystemfunction.Proper
groundingoftheelectricaloutletcanbeveriedbyacertiedelectrician.

Safetynotices

ThecautionanddangersafetynoticesinthissectionareprovidedinthethelanguageofEnglish.

DANGER

Electricalcurrentfrompower,telephoneandcommunicationcablesishazardous.

Toavoidashockhazard:

•Donotconnectordisconnectanycablesorperforminstallation,maintenance,orreconguration
ofthisproductduringanelectricalstorm.

•Connectallpowercordstoaproperlywiredandgroundedelectricaloutlet.

•Connecttoproperlywiredoutletsanyequipmentthatwillbeattachedtothisproduct.

•Whenpossible,useonehandonlytoconnectordisconnectsignalcables.

•Neverturnonanyequipmentwhenthereisevidenceofre,water,orstructuraldamage.

•Disconnecttheattachedpowercords,telecommunicationssystems,networks,andmodems

beforeyouopenthedevicecovers,unlessinstructedotherwiseintheinstallationandconguration
procedures.

•Connectanddisconnectcablesasdescribedinthefollowingtablewheninstalling,moving,or
openingcoversonthisproductorattacheddevices.

6LenovoC2/C3HardwareMaintenanceManual

ToConnect

ToDisconnect

1.TurneverythingOFF.

2.First,attachallcablestodevices.

3.Attachsignalcablestoconnectors.

4.Attachpowercordstooutlet.

5.TurndeviceON.

1.TurneverythingOFF.

2.First,removepowercordsfromoutlet.

3.Removesignalcablesfromconnectors.

4.Removeallcablesfromdevices.

CAUTION:
Whenreplacingthelithiumbattery,useonlyPartNumber45C1566oranequivalenttypebattery
recommendedbythemanufacturer.Ifyoursystemhasamodulecontainingalithiumbattery,replace
itonlywiththesamemoduletypemadebythesamemanufacturer.Thebatterycontainslithiumand
canexplodeifnotproperlyused,handled,ordisposedof.

Donot:

•Throworimmerseintowater

•Heattomorethan100°C(212°F)

•Repairordisassemble

Disposeofthebatteryasrequiredbylocalordinancesorregulations.

CAUTION:
Whenlaserproducts(suchasCD-ROMs,DVD-ROMdrives,beropticdevices,ortransmitters)are
installed,notethefollowing:

•Donotremovethecovers.Removingthecoversofthelaserproductcouldresultinexposureto
hazardouslaserradiation.Therearenoserviceablepartsinsidethedevice.

•Useofcontrolsoradjustmentsorperformanceofproceduresotherthanthosespeciedherein
mightresultinhazardousradiationexposure.

DANGER

SomelaserproductscontainanembeddedClass3AorClass3Blaserdiode.Notethefollowing:

Laserradiationwhenopen.Donotstareintothebeam,donotviewdirectlywithoptical
instruments,andavoiddirectexposuretothebeam.

Chapter2.Safetyinformation7

≥18kg(37lbs)≥32kg(70.5lbs)≥55kg(121.2lbs)

CAUTION:
Usesafepracticeswhenlifting.

CAUTION:
Thepowercontrolbuttononthedeviceandthepowerswitchonthepowersupplydonotturnoff
theelectricalcurrentsuppliedtothedevice.Thedevicealsomighthavemorethanonepower
cord.T oremoveallelectricalcurrentfromthedevice,ensurethatallpowercordsaredisconnected
fromthepowersource.

1

2

CAUTION:
Donotplaceanyobjectweighingmorethan82kg(180lbs.)ontopofrack-mounteddevices.

8LenovoC2/C3HardwareMaintenanceManual

Chapter3.Generalinformation

Thischapterprovidesgeneralinformationthatappliestoallmachinetypessupportedbythispublication.

Specications

Thissectionliststhephysicalspecicationsforyourcomputer.

Thissectionliststhephysicalspecicationsforyourcomputer.

TypeLenovoC220/C225/C320/C325

Thissectionliststhephysicalspecications.

Environment

Airtemperature:

Operating:10°to35°C

Transit:-20°to55°C

Humidity:

Operating:35%to80%

Transit:20%to93%(40°C)

Altitude:86KPato106KPa

Electricalinput:

Inputvoltage:90V-264V(AC)

Inputfrequency:47Hz-63Hz

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10LenovoC2/C3HardwareMaintenanceManual

Chapter4.GeneralCheckout

Attention:Thedrivesinthecomputeryouareservicingmighthavebeenrearrangedorthedrivestartup

sequencechanged.Beextremelycarefulduringwriteoperationssuchascopying,saving,orformatting.
Dataorprogramscanbeoverwrittenifyouselectanincorrectdrive.

Generalerrormessagesappearifaproblemorconictisfoundbyanapplicationprogram,theoperating
system,orboth.Foranexplanationofthesemessages,refertotheinformationsuppliedwiththatsoftware
package.

Usethefollowingproceduretohelpdeterminethecauseoftheproblem:

1.Power-offthecomputerandallexternaldevices.

2.Checkallcablesandpowercords.

3.Setalldisplaycontrolstothemiddleposition.

4.Power-onallexternaldevices.

5.Power-onthecomputer.

•Lookfordisplayederrorcodes

•Lookforreadableinstructionsoramainmenuonthedisplay.

Ifyoudidnotreceivethecorrectresponse,proceedtostep6.

Ifyoudoreceivethecorrectresponse,proceedtostep7.

6.Lookatthefollowingconditionsandfollowtheinstructions:

•IfthecomputerdisplaysaPOSTerror,goto“POSTerrorcodes” .

•Ifthecomputerhangsandnoerrorisdisplayed,continueatstep7.

7.Ifyoucannotcontinue,replacethelastdevicetested.

Problemdeterminationtips

Duetothevarietyofhardwareandsoftwarecombinationsthatcanbeencountered,usethefollowing
informationtoassistyouinproblemdetermination.Ifpossible,havethisinformationavailablewhen
requestingassistancefromServiceSupportandEngineeringfunctions.

•Machinetypeandmodel

•Processororharddiskupgrades

•Failuresymptom

Dodiagnosticsindicateafailure?

What,when,where,single,ormultiplesystems?

Isthefailurerepeatable?

Hasthiscongurationeverworked?

Ifithasbeenworking,whatchangesweremadepriortoitfailing?

Isthistheoriginalreportedfailure?

•Diagnosticsversion

Typeandversionlevel

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•Hardwareconguration

Print(printscreen)congurationcurrentlyinuse

BIOSlevel

•Operatingsystemsoftware

Typeandversionlevel

Notes:T oeliminateconfusion,identicalsystemsareconsideredidenticalonlyifthey:

1.Aretheexactmachinetypeandmodels

2.HavethesameBIOSlevel

3.Havethesameadapters/attachmentsinthesamelocations

4.Havethesameaddressjumpers/terminators/cabling

5.Havethesamesoftwareversionsandlevels

6.Havethesamecongurationoptionssetinthesystem

7.Havethesamesetupfortheoperationsystemcontrolles

Comparingthecongurationandsoftwareset-upbetween“workingandnon-working”systemswilloften
leadtoproblemresolution.

12LenovoC2/C3HardwareMaintenanceManual

Chapter5.UsingtheSetupUtility

TheSetupUtilityprogramisusedtoviewandchangethecongurationsettingsofyourcomputer,regardless
ofwhichoperatingsystemyouareusing.However,theoperating-systemsettingsmightoverrideanysimilar
settingsintheSetupUtilityprogram.

StartingtheSetupUtilityprogram

TostarttheSetupUtilityprogram,dothefollowing:

1.Ifyourcomputerisalreadyonwhenyoustartthisprocedure,shutdowntheoperatingsystemand
turnoffthecomputer.

2.PressandholdtheF1keythenturnonthecomputer.Whenyouhearmultiplebeeps,releasetheF1key.

Notes:

1.IfyouareusingaUSBkeyboardandtheSetupUtilityprogramdoesnotdisplayusingthismethod,
repeatedlypressandreleasetheF1keyratherthanleavingitpressedwhenturningonthecomputer.

2.IfaPower-OnPasswordoranadministratorpasswordhasbeenset,theSetupUtilityprogrammenuis
notdisplayeduntilyoutypeyourpassword.Formoreinformation,see“Usingpasswords.”

Viewingandchangingsettings

TheSetupUtilityprogrammenulistsitemsthatidentifysystemcongurationtopics.T ovieworchange
settings,see“StartingtheSetupUtilityprogram.”

WhenworkingwiththeSetupUtilityprogrammenu,youmustusethekeyboard.Thekeysusedtoperform
varioustasksaredisplayedontherightsideofeachscreen.

Usingpasswords

ByusingtheSetupUtilityprogram,youcansetpasswordstopreventunauthorizedpersonsfromgaining
accesstoyourcomputeranddata.See“StartingtheSetupUtilityprogram.”Thefollowingtypesof
passwordsareavailable:

•AdministratorPassword

•Power-OnPassword

Youdonothavetosetanypasswordstouseyourcomputer.However,ifyoudecidetosetanypasswords,
readthefollowingsections.

Passwordconsiderations

Apasswordcanbeanycombinationofupto64characters(a-zand0-9)andsymbols.Forsecurity
reasons,itisagoodideatouseastrongpasswordthatcannotbeeasilycompromised.Wesuggestthe
passwordsshouldadheretothefollowingrules:

•Musthaveatleastsevencharactersinlength

•Containatleastonealphabeticcharacterandonenumericcharacter

•SetupUtilityprogramandharddiskdrivepasswordsarenotcasesensitive

•Notbeyournameoryourusername

©CopyrightLenovo

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•Notbeacommonwordoracommonname

•Besignicantlydifferentfromyourpreviouspassword

Administratorpassword

WhenaAdministratorPasswordisset,itdetersunauthorizedpersonsfromchangingconguration
settings.Ifyouareresponsibleformaintainingthesettingsofseveralcomputers,youmightwanttoseta
AdministratorPassword.

AfteryousetaAdministratorPassword,apasswordpromptisdisplayedeachtimeyoutrytoaccessthe
SetupUtilityprogram.

IfboththeAdministratorandPower-OnPasswordareset,youcantypeeitherpassword.However,to
changeanycongurationsettings,youmustuseyourAdministratorpassword.

Setting,changing,anddeletingaAdministratorpassword

Toset,change,ordeleteapassword,dothefollowing:

Note:Apasswordcanbeanycombinationofupto64characters(a-z,and0-9).Formoreinformation,see
“Passwordconsiderations”onpage13.

1.StarttheSetupUtilityprogram(see“StartingtheSetupUtilityprogram”onpage13).

2.FromSecuritymenu,selectSetAdministratorPasswordandpressEnter.

3.Thepassworddialogboxwillbedisplayed.Typethenewpassword,andpressEnter.

4.whenpromptedtoconrmthepassword,typethepasswordagain.Ifyoutypethepasswordcorrectly,
thepasswordwillbeinstalled.

TodeleteapreviouslysetAdministratorpassword,dothefollowing:

Note:Whenpromptedforapassword,youmusttypeyourAdministratorpassword.

1.FromSecuritymenu,selectSetAdministratorPasswordandpressEnter.

2.Thepassworddialogboxwillbedisplayed.EnterCurrentPasswordandpressEnter.PressEnterinNew
PasswordandconrmNewPassworddialog.Asetupnoticewilldisplaythatchangeshavebeensaved.

3.SelectExit.

4.SelectSavechangesandExit.

Power-OnPassword

WhenaPower-OnPasswordisset,youcannotstarttheSetupUtilityprogramuntilavalidpasswordis
typedfromthekeyboard.

Setting,changing,anddeletingaPower-OnPassword

Toset,change,ordeleteaPower-OnPassword,dothefollowing:

Note:Apasswordcanbeanycombinationofupto64characters(a-z,and0-9).

1.StarttheSetupUtilityprogram(See”StartingtheSetupUtilityprogram” .)

2.FromtheSecuritymenu,seletSetPower-OnPasswordandpressEnter.

3.Thepassworddialogboxwillbedisplayed.Typethenewpassword,andpressEnter.

4.whenpromptedtoconrmthepassword,typethepasswordagain.Ifyoutypethepasswordcorrectly,
thepasswordwillbeinstalled.

14LenovoC2/C3HardwareMaintenanceManual

TodeleteapreviouslysetPower-OnPassword,dothefollowing:

1.FromtheSecuritymenu,selectSetPower-OnPasswordandpressEnter.

2.Thepassworddialogboxwillbedisplayed.EnterCurrentPasswordandpressEnter.PressEnterinNew
PasswordandconrmNewPassworddialog.Asetupnoticewilldisplaythatchangeshavebeensaved.

3.SelectExit.

4.SelectSavechangesandExit.

UsingDevice

Deviceisusedtoenableordisableuseraccesstothefollowingdevice:

USBSetupWhenthisfeatureissettoDisable,thedeviceofUSB

SetupisDisabledandwillnotbedisplayedinthesystem
conguration.

TosetDevice,dothefollowing:

1.StarttheSetupUtilityprogram(see“StartingtheSetupUtilityprogram”onpage13).

2.FromtheSetupUtilityprogrammenu,selectDevices.

3.SelectUSBSetup.

4.SelectDisabledorEnabledandpressEnter.

5.ReturntotheSetupUtilityprogrammenuandpressF10tosavecongurationchangesandexitsetup.

Note:Ifyoudonotwanttosavethesettings,selectExitandselectDiscardchangesandExit.You
cansetotherssuchasAudioSetupandNetworkSetup.Seetheinformationdisplayedontheright
sideofthescreen.

Selectingastartupdevice

Ifyourcomputerdoesnotstartup(boot)fromadevicesuchastheCD-ROM,diskette,orharddiskas
expected,useoneofthefollowingprocedurestoselectastartupdevice.

Selectingatemporarystartupdevice

Usethisproceduretostartupfromanybootdevice.

Note:NotallCDs,harddisks,anddiskettesarebootable.

1.T urnoffyourcomputer.

2.PressandholdtheF12keythenturnonthecomputer.WhentheStartupDeviceMenuappears,release
theF12key.

Note:IfyouareusingaUSBkeyboardandtheStartupDeviceMenudoesnotdisplayusingthismethod,
repeatedlypressandreleasetheF12keyratherthanleavingitpressedwhenturningonthecomputer.

3.SelectthedesiredstartupdevicefromtheStartupDeviceMenuandpressEntertobegin.

Note:SelectingastartupdevicefromtheStartupDevicemenudoesnotpermanentlychangethe
startupsequence.

Selectingorchangingthestartupdevicesequence

Tovieworpermanentlychangetheconguredstartupdevicesequence,dothefollowing:

1.StarttheSetupUtilityprogram(see“StartingtheSetupUtilityprogram”onpage13).

Chapter5.UsingtheSetupUtility15