Lenovo E73Z User Manual

ThinkCentreE73z
HardwareMaintenanceManual

MachineTypes:10BDand10BL

Note:Beforeusingthisinformationandtheproductitsupports,besuretoreadthegeneralinformation
underAppendixA“Notices”onpage115.

SecondEdition(January2014)
©CopyrightLenovo2013,2014.

LIMITEDANDRESTRICTEDRIGHTSNOTICE:IfdataorsoftwarearedeliveredpursuantaGeneralServices
Administration“GSA”contract,use,reproduction,ordisclosureissubjecttorestrictionssetforthinContractNo.
GS-35F-05925.

Contents

Chapter1.Aboutthismanual......1

Importantsafetyinformation..........1

Chapter2.Safetyinformation......3

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

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

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

Handlingelectrostaticdischarge-sensitive

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

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

Safetynotices(multi-lingualtranslations).....6

Chapter3.Generalinformation....29

Specications...............29

Lenovoprograms.............29

AccessingLenovoprogramsontheWindows

7operatingsystem...........30

AccessingLenovoprogramsontheWindows

8orWindows8.1operatingsystem....31

LenovoSupportWebsite..........31

Chapter4.Generalcheckout.....33

Problemdeterminationtips..........33

Chapter5.Troubleshootingand

diagnostics..............35

Basictroubleshooting............35

AccessingControlPanelontheWindows8or

Windows8.1operatingsystem........36

Troubleshootingprocedure..........36

Troubleshooting..............37

Audioproblems............37

CDproblems.............39

DVDproblems.............40

Intermittentproblems..........41

Harddiskdriveproblems.........41

Keyboard,mouse,orpointingdevice

problems...............42

Monitorproblems............44

Networkingproblems..........46

Optionproblems............48

Performanceandlockupproblems.....49

Printerproblems............51

Serialportproblems...........51

Softwareproblems...........52

USBproblems.............53

Diagnostics................53

LenovoSolutionCenter.........54

Chapter6.UsingtheSetupUtility

program................55

StartingtheSetupUtilityprogram.......55

Viewingandchangingsettings........55

Usingpasswords..............55

Passwordconsiderations.........56

Power-onpassword...........56

Administratorpassword.........56

Setting,changing,anddeletingapassword.56
Erasinglostorforgottenpasswords(clearing

CMOS)................56

Enablingordisablingadevice........57

Selectingastartupdevice..........57

Selectingatemporarystartupdevice....58

Selectingorchangingthestartupdevice

sequence...............58

ChangingtheBIOSsettingsbeforeinstallinganew

operatingsystem..............58

ExitingtheSetupUtilityprogram.......58

Chapter7.Symptom-to-FRUIndex..59

Harddiskdrivebooterror..........59

Powersupplyproblems...........59

Beepsymptoms..............59

POSTerrorcodes.............60

Miscellaneouserrorconditions........61

Undeterminedproblems...........63

Chapter8.Locations.........65

Locatingconnectors,controls,andindicatorson

thefrontofyourcomputer..........65

Locatingconnectorsontherearofyour

computer.................66

LocatingmajorFRUsandCRUs........66

LookingupFRUinformation.........69

Locatingpartsonthesystemboard......69

Chapter9.ReplacingFRUs......71

Removingandinstallingthecomputerstand...71

Removingandreinstallingtheframestand..71

Removingandinstallingthemonitorstand..73

Removingthecomputercover........75

Removingandreinstallingthefeetstand....75

Removingandinstallingthehard-disk-driveEMI

shield..................76

Replacingthe3.5-inchharddiskdriveorhybrid

harddiskdrive...............78

Replacingthe2.5-inchsolid-statedriveorhybrid

harddiskdrive...............80

©CopyrightLenovo2013,2014

i

Replacingtheopticaldrive..........82

Removingandreinstallingthesystemboard

shield..................83

ReplacingtherearI/Oassembly........84

RemovingtheVESAmountbracket......86

Replacingthepowersupply.........87

Replacingthemicroprocessorfan.......88

Replacingtheheatsinkassembly.......90

Replacingthemicroprocessor........91

Replacingthecardreader..........94

Replacingthebattery............95

Replacingtheconverterboard........96

Installingorreplacingamemorymodule....97

Replacingtheinternalspeakers........99

Replacingtheintegratedcamera.......100

Replacingthesystemboard.........101

ReplacingtheLCDpanel...........103

ReplacingtheWi-Ficard...........107

Completingthepartsreplacement.......108

Securityfeatures..............111

Hardwarecontrolledpasswords......111

Operatingsystempassword.......111

Vitalproductdata............111

BIOSlevels................111

Flashupdateprocedures..........111

Updating(ashing)theBIOSfromadisc...112

Updating(ashing)theBIOSfromyour

operatingsystem............113

RecoveringfromaPOST/BIOSupdate

failure................113

Powermanagement............114

Automaticcongurationandpowerinterface

(ACPI)BIOS..............114

AutomaticPower-onfeatures.......114

AppendixA.Notices.........115

Televisionoutputnotice...........116

EuropeanconformanceCEmark.......116

Trademarks................116

Chapter10.Additionalservice

information.............111

Index.................117

iiThinkCentreE73zHardwareMaintenanceManual

Chapter1.Aboutthismanual

ThismanualprovidesserviceandreferenceinformationforThinkCentre®computerslistedonthefrontcover.

Chapter7“Symptom-to-FRUIndex”onpage59andChapter10“Additionalserviceinformation”onpage
111arenotspecictoanymachinetypeandareapplicabletoallThinkCentrecomputers.

FormajorFieldReplaceableUnits(FRU)locationsandCustomerReplaceableUnit(CRU)identication,
seeChapter8“Locations”onpage65.

ForFRUreplacementinstructions,seeChapter9“ReplacingFRUs”onpage71.

ForFRUpartnumbers,goto:
http:/www.lenovo.com/serviceparts-lookup

Important:ThismanualisintendedonlyfortrainedservicetechnicianswhoarefamiliarwithThinkCentre
computers.Usethismanualalongwiththeadvanceddiagnosticteststotroubleshootproblemseffectively.
BeforeservicingaThinkCentrecomputer,besuretoreadandunderstandChapter2“Safetyinformation”
onpage3

Importantsafetyinformation

Besuretoreadallcautionanddangerstatementsinthisbookbeforeperforminganyoftheinstructions.

VeuillezliretouteslesconsignesdetypeDANGERetATTENTIONduprésentdocumentavantd'exécuter
lesinstructions.

.

LesenSieunbedingtalleHinweisevomTyp"ACHTUNG"oder"VORSICHT"indieserDokumentation,bevor
SieirgendwelcheVorgängedurchführen

LeggereleistruzioniintrodottedaATTENZIONEePERICOLOpresentinelmanualeprimadieseguireuna
qualsiasidelleistruzioni

Certique-sedelertodasasinstruçõesdecuidadoeperigonestemanualantesdeexecutarqualquer
umadasinstruções

Esimportantequeleatodaslasdeclaracionesdeprecauciónydepeligrodeestemanualantesdeseguir
lasinstrucciones.

©CopyrightLenovo2013,2014

1

2ThinkCentreE73zHardwareMaintenanceManual

Chapter2.Safetyinformation

Thischaptercontainsthesafetyinformationthatyouneedtobefamiliarwithbeforeservicingacomputer.

Generalsafety

Followtheserulestoensuregeneralsafety:

•Observegoodhousekeepingintheareaofthemachinesduringandaftermaintenance.

•Whenliftinganyheavyobject:

1.Ensureyoucanstandsafelywithoutslipping.

2.Distributetheweightoftheobjectequallybetweenyourfeet.

3.Useaslowliftingforce.Nevermovesuddenlyortwistwhenyouattempttolift.

4.Liftbystandingorbypushingupwithyourlegmuscles;thisactionremovesthestrainfromthe
musclesinyourback.

Attention:Donotattempttoliftanyobjectsthatweighmorethan16kg(35lb)orobjectsthatyou
thinkaretooheavyforyou.

•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,drilling,soldering,cuttingwire,attachingsprings,using
solvents,orworkinginanyotherconditionsthatmightbehazardoustoyoureyes.

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

•Reinstallallcoverscorrectlybeforereturningthemachinetothecustomer.

Electricalsafety

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

©CopyrightLenovo2013,2014

3

Observethefollowingruleswhenworkingonelectricalequipment.

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.

4ThinkCentreE73zHardwareMaintenanceManual

–Sendanotherpersontogetmedicalaid.

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.

Chapter2.Safetyinformation5

•Avoidcontactwithotherpeoplewhilehandlingthepart.

•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(multi-lingualtranslations)

Thecautionanddangersafetynoticesinthissectionareprovidedinthefollowinglanguages:

•English

•Arabic

•Brazilian/Portuguese

•Chinese(simplied)

•Chinese(traditional)

•French

•German

•Hebrew

•Italian

•Korean

•Spanish

DANGER

Electricalcurrentfrompower,telephoneandcommunicationcablesishazardous.

Toavoidashockhazard:

•Donotconnectordisconnectanycablesorperforminstallation,maintenance,orreconguration
ofthisproductduringanelectricalstorm.

6ThinkCentreE73zHardwareMaintenanceManual

•Connectallpowercordstoaproperlywiredandgroundedelectricaloutlet.

•Connecttoproperlywiredoutletsanyequipmentthatwillbeattachedtothisproduct.

•Whenpossible,useonehandonlytoconnectordisconnectsignalcables.

•Neverturnonanyequipmentwhenthereisevidenceofre,water,orstructuraldamage.

•Disconnecttheattachedpowercords,telecommunicationssystems,networks,andmodems

beforeyouopenthedevicecovers,unlessinstructedotherwiseintheinstallationandconguration
procedures.

•Connectanddisconnectcablesasdescribedinthefollowingtableswheninstalling,moving,or

openingcoversonthisproductorattacheddevices.

ToConnectToDisconnect

1.T urneverythingOFF .

2.First,attachallcablestodevices.

3.Attachsignalcablestoconnectors.

4.Attachpowercordstooutlet.

5.T urndeviceON.

1.T urneverythingOFF .

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)

1

2

CAUTION:
Usesafepracticeswhenlifting.

CAUTION:
Thepowercontrolbuttononthedeviceandthepowerswitchonthepowersupplydonotturnoff
theelectricalcurrentsuppliedtothedevice.Thedevicealsomighthavemorethanonepower
cord.Toremoveallelectricalcurrentfromthedevice,ensurethatallpowercordsaredisconnected
fromthepowersource.

8ThinkCentreE73zHardwareMaintenanceManual

Chapter2.Safetyinformation9

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

1

2

PERIGO

Acorrenteelétricaprovenientedecabosdealimentação,detelefoneedecomunicaçõeséperigosa.

10ThinkCentreE73zHardwareMaintenanceManual

Paraevitarriscodechoqueelétrico:

•Nãoconectenemdesconectenenhumcaboouexecuteinstalação,manutençãooureconguração
desteprodutoduranteumatempestadecomraios.

•Conectetodososcabosdealimentaçãoatomadaselétricascorretamenteinstaladaseaterradas.

•T odoequipamentoqueforconectadoaesteprodutodeveserconectadoatomadascorretamente
instaladas.

•Quandopossível,utilizeapenasumadasmãosparaconectaroudesconectarcabosdesinal.

•Nuncaliguenenhumequipamentoquandohouverevidênciadefogo,águaoudanosestruturais.

•Antesdeabrirtampasdedispositivos,desconectecabosdealimentação,sistemasdetelecomunicação,
redesemodemsconectados,amenosqueespecicadodemaneiradiferentenosprocedimentosde
instalaçãoeconguração.

•Conecteedesconecteoscabosconformedescritonatabelaapresentadaaseguiraoinstalar,moverou
abrirtampasdesteprodutooudedispositivosconectados.

ParaConectar:ParaDesconectar:

1.DESLIGUET udo.

2.Primeiramente,conectetodososcabosaos
dispositivos.

3.Conecteoscabosdesinalaosconectores.

4.Conecteoscabosdealimentaçãoàstomadas.

5.LIGUEosdispositivos.

1.DESLIGUET udo.

2.Primeiramente,removaoscabosdealimentaçãodas
tomadas.

3.Removaoscabosdesinaldosconectores.

4.Removatodososcabosdosdispositivos.

CUIDADO:

Aosubstituirabateriadelítio,utilizeapenasumabateriacomNúmerodePeça45C1566ouumtipo
debateriaequivalenterecomendadopeloSeoseusistemapossuiummódulocomumabateriade
lítio,substitua-oapenasporummódulodomesmotipoedomesmofabricante.Abateriacontémlítio
epodeexplodirsenãoforutilizada,manuseadaoudescartadademaneiracorreta.

Não:

•Jogueoucoloquenaágua

•Aqueçaamaisde100°C(212°F)

•Consertenemdesmonte

Descarteabateriaconformerequeridopelasleisouregulamentoslocais.

PRECAUCIÓN:

Quandoprodutosalaser(comounidadesdeCD-ROMs,unidadesdeDVD-ROM,dispositivosdebraótica
outransmissores)estivereminstalados,observeoseguinte:

•Nãoremovaastampas.Aremoçãodastampasdeumprodutoalaserpoderesultaremexposição
prejudicialàradiaçãodelaser.Nãoexistempeçasquepodemserconsertadasnointeriordodispositivo.

Chapter2.Safetyinformation11

•Autilizaçãodecontrolesouajustesouaexecuçãodeprocedimentosdiferentesdosespecicadosaqui

1

2

poderesultaremexposiçãoprejudicialàradiação.

PERIGO

AlgunsprodutosalasercontêmdiododelaserintegradodaClasse3AoudaClasse3B.Observeoseguinte:

Radiaçãoalaserquandoaberto.Nãoolhediretamenteparaofeixeaolhonuoucominstrumentosópticose
eviteexposiçãodiretaaofeixe.

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

CUIDADO:

Utilizeprocedimentosdesegurançaparalevantarequipamentos.

CUIDADO:

Obotãodecontroledealimentaçãododispositivoeobotãoparaligar/desligardafontedealimentação
nãodesligamacorrenteelétricafornecidaaodispositivo.Odispositivotambémpodetermaisdeumcabo
dealimentação.Pararemovertodaacorrenteelétricadodispositivo,assegurequetodososcabosde
alimentaçãoestejamdesconectadosdafontedealimentação.

12ThinkCentreE73zHardwareMaintenanceManual

Chapter2.Safetyinformation13

1

2

14ThinkCentreE73zHardwareMaintenanceManual

1

2

Chapter2.Safetyinformation15

DANGER

Lecourantélectriqueprovenantdel'alimentation,dutéléphoneetdescâblesdetransmissionpeutprésenter
undanger.

Pourévitertoutrisquedechocélectrique:

•Nemanipulezaucuncâbleetn'effectuezaucuneopérationd'installation,d'entretienoudereconguration
deceproduitaucoursd'unorage.

•Brancheztouslescordonsd'alimentationsurunsocledeprisedecourantcorrectementcâbléetmisàla
terre.

•Branchezsurdessoclesdeprisedecourantcorrectementcâbléstoutéquipementconnectéàceproduit.

•Lorsquecelaestpossible,n'utilisezqu'uneseulemainpourconnecteroudéconnecterlescâbles
d'interface.

•Nemettezjamaisunéquipementsoustensionencasd'incendieoud'inondation,ouenprésencede
dommagesmatériels.

•Avantderetirerlescartersdel'unité,mettezcelle-cihorstensionetdéconnectezsescordons
d'alimentation,ainsiquelescâblesquilarelientauxréseaux,auxsystèmesdetélécommunicationetaux
modems(saufinstructioncontrairementionnéedanslesprocéduresd'installationetdeconguration).

•Lorsquevousinstallez,quevousdéplacez,ouquevousmanipulezleprésentproduitoudespériphériques
quiluisontraccordés,reportez-vousauxinstructionsci-dessouspourconnecteretdéconnecterles
différentscordons.

ConnexionDéconnexion

1.MettezlesunitésHORSTENSION.

2.Commencezparbranchertouslescordonssurles
unités.

3.Branchezlescâblesd'interfacesurdesconnecteurs.

4.Branchezlescordonsd'alimentationsurdesprises.

5.MettezlesunitésSOUSTENSION.

1.MettezlesunitésHORSTENSION.

2.Débranchezlescordonsd'alimentationdesprises.

3.Débranchezlescâblesd'interfacedesconnecteurs.

4.Débrancheztouslescâblesdesunités.

ATTENTION:

Remplacerlapileaulithiumusagéeparunepilederéférenceidentiqueexclusivement,(référence
45C1566),ousuivrelesinstructionsdufabricantquiendénitleséquivalences.Sivotresystèmeest
dotéd'unmodulecontenantunepileaulithium,vousdevezleremplaceruniquementparunmodule
identique,produitparlemêmefabricant.Lapilecontientdulithiumetpeutexploserencasde
mauvaiseutilisation,demauvaisemanipulationoudemiseaurebutinappropriée.

Nepas:

•lajeteràl'eau,

•l'exposeràdestempératuressupérieuresà100°C,

•chercheràlaréparerouàladémonter.

Nepasmettrelapileàlapoubelle.Pourlamiseaurebut,sereporteràlaréglementationenvigueur.

16ThinkCentreE73zHardwareMaintenanceManual

ATTENTION:

Sidesproduitsàlaser(telsquedesunitésdeCD-ROM,deDVD-ROM,desunitésàbresoptiques,ou
desémetteurs)sontinstallés,prenezconnaissancedesinformationssuivantes:

•Neretirezpaslecarter.Enouvrantl'unitédeCD-ROMoudeDVD-ROM,vousvousexposezau

rayonnementdangereuxdulaser.Aucunepiècedel'unitén'estréparable.

•Pourévitertoutrisqued'expositionaurayonlaser,respectezlesconsignesderéglageet

d'utilisationdescommandes,ainsiquelesprocéduresdécritesdansleprésentmanuel.

DANGER

Certainsproduitsàlasercontiennentunediodeàlaserintégréedeclasse3Aou3B.Prenez
connaissancedesinformationssuivantes:

Rayonnementlaserlorsquelecarterestouvert.Eviteztouteexpositiondirecteaurayonlaser.Evitez
deregarderxementlefaisceauoudel'observeràl'aided'instrumentsoptiques.

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

ATTENTION:

Soulevezlamachineavecprécaution.

ATTENTION:

L'interrupteurdecontrôled'alimentationdel'unitéetl'interrupteurdublocd'alimentationnecoupent
paslecourantélectriquealimentantl'unité.Enoutre,lesystèmepeutêtreéquipédeplusieurs
cordonsd'alimentation.Pourmettrel'unitéhorstension,vousdevezdéconnectertouslescordons
delasourced'alimentation.

Chapter2.Safetyinformation17

1

2

VORSICHT

AnNetz-,Telefon-undDatenleitungenkönnengefährlicheSpannungenanliegen.

AusSicherheitsgründen:

•BeiGewitterandiesemGerätkeineKabelanschließenoderlösen.FernerkeineInstallations-,

Wartungs-oderRekongurationsarbeitendurchführen.

•GerätnuraneineSchutzkontaktsteckdosemitordnungsgemäßgeerdetemSchutzkontakt

anschließen.

•AlleangeschlossenenGeräteebenfallsanSchutzkontaktsteckdosenmitordnungsgemäß

geerdetemSchutzkontaktanschließen.

•DieSignalkabelnachMöglichkeiteinhändiganschließenoderlösen,umeinenStromschlagdurch

BerührenvonOberächenmitunterschiedlichemelektrischemPotenzialzuvermeiden.

•Geräteniemalseinschalten,wennHinweiseaufFeuer,WasseroderGebäudeschädenvorliegen.

•DieVerbindungzudenangeschlossenenNetzkabeln,Telekommunikationssystemen,Netzwerken

undModemsistvordemÖffnendesGehäuseszuunterbrechen,sofernindenInstallations-und
KongurationsprozedurenkeineanderslautendenAnweisungenenthaltensind.

•ZumInstallieren,TransportierenundÖffnenderAbdeckungendesComputersoderder

angeschlossenenEinheitendieKabelgemäßderfolgendenTabelleanschließenundabziehen.

ZumAnschließenderKabelgehenSiewiefolgtvorZumAbziehenderKabelgehenSiewiefolgtvor

1.SchaltenSiealleEinheitenAUS.

2.SchließenSieerstalleKabelandieEinheitenan.

3.SchließenSiedieSignalkabelandieBuchsenan.

4.SchließenSiedieNetzkabelandieSteckdosean.

5.SchaltenSiedieEinheitEIN.

1.SchaltenSiealleEinheitenAUS.

2.ZiehenSiezuerstalleNetzkabelausden
Netzsteckdosen.

3.ZiehenSiedieSignalkabelausdenBuchsen.

4.ZiehenSiealleKabelvondenEinheitenab.

CAUTION:

EineverbrauchteLithiumbatterienurdurcheineBatteriemitderT eilenummer45C1566odereine
gleichwertige,vomHerstellerempfohleneBatterieersetzen.EnthältdasSystemeinModulmiteiner
Lithiumbatterie,diesesnurdurcheinModuldesselbenTypsundvondemselbenHerstellerersetzen.
DieBatterieenthältLithiumundkannbeiunsachgemäßerVerwendung,HandhabungoderEntsorgung
explodieren.

DieBatterienicht:

•mitWasserinBerührungbringen.

18ThinkCentreE73zHardwareMaintenanceManual

•über100Cerhitzen.

•reparierenoderzerlegen.

DieörtlichenBestimmungenfürdieEntsorgungvonSondermüllbeachten.

ACHTUNG:

BeiderInstallationvonLasergeräten(wieCD-ROM-Laufwerken,DVD-aufwerken,Einheitenmit
LichtwellenleitertechnikoderSendern)Folgendesbeachten:

•DieAbdeckungennichtentfernen.DurchEntfernenderAbdeckungendesLasergerätskönnen

gefährlicheLaserstrahlungenfreigesetztwerden.DasGerätenthältkeinezuwartendenTeile.

•WerdenSteuerelemente,EinstellungenoderDurchführungenvonProzedurenandersalshier

angegebenverwendet,kanngefährlicheLaserstrahlungauftreten.

VORSICHT

EinigeLasergeräteenthalteneineLaserdiodederKlasse3Aoder3B.BeachtenSieFolgendes:

LaserstrahlungbeigeöffneterVerkleidung.NichtindenStrahlblicken.KeineLupenoderSpiegel
verwenden.Strahlungsbereichmeiden.

≥18kg≥32kg≥55kg

ACHTUNG:

ArbeitsschutzrichtlinienbeimAnhebenderMaschinebeachten.

ACHTUNG:

MitdemNetzschalteranderEinheitundamNetzteilwirddieStromversorgungfürdieEinheit
nichtunterbrochen.DieEinheitkannauchmitmehrerenNetzkabelnausgestattetsein.Umdie
StromversorgungfürdieEinheitvollständigzuunterbrechen,müssenallezumGerätführenden
NetzkabelvomNetzgetrenntwerden.

Chapter2.Safetyinformation19

1

2

20ThinkCentreE73zHardwareMaintenanceManual

1

2

Chapter2.Safetyinformation21

PERICOLO

Lacorrenteelettricaprovenientedaicavidialimentazione,deltelefonoedicomunicazionepuòessere
pericolosa.

Perevitareilrischiodiscosseelettriche:

•Noncollegareoscollegarequalsiasicavooppureeffettuarel'installazione,lamanutenzioneola

ricongurazionedelprodottoduranteuntemporale.

•Collegaretuttiilielettriciaunapresadialimentazionecorrettamentecablataedotatadimessaa

terra.

•Collegareallepreseelettricheappropriatetutteleapparecchiaturecheverrannoutilizzateper

questoprodotto.

•Sepossibile,utilizzaresolounamanopercollegareoscollegareicavidisegnale.

•Nonaccendereassolutamenteapparecchiatureinpresenzadiincendi,perdited'acquaodanno

strutturale.

•Scollegareicavidialimentazione,isistemiditelecomunicazione,leretieilmodemprimadi

aprireicoperchideldispositivo,salvoistruzionicontrarierelativealleprocedurediinstallazionee
congurazione.

•Collegareescollegareicavicomedescrittonellaseguentetabellaquandovengonoeffettuate

operazionidiinstallazione,spostamentooaperturadeicoperchidiquestoprodottoodelleunità
collegate.

PercollegarsiPerscollegarsi

1.SPEGNEREleapparecchiature.

2.Innanzitutto,collegaretuttiicavialleunità.

3.Collegareicavidisegnaleaiconnettori.

4.Collegareicavidialimentazioneallapresa.

5.Accenderel'unità.

1.SPEGNEREleapparecchiature.

2.Innanzitutto,rimuovereicavidialimentazionedalla
presa.

3.Rimuovereicavidisegnaledaiconnettori.

4.Rimuoveretuttiicavidalleunità.

ATTENZIONE:

Quandosisostituiscelabatteriaallitio,utilizzaresoloilNumeroparte45C1566ountipodibatteria
equivalenteconsigliatodalproduttore.Sesulsistemaèpresenteunmodulochecontieneunabatteria
allitio,sostituirlosoloconuntipodimodulodellostessotipodellastessacasadiproduzione.La
batteriacontienelitioepuòesplodereseusata,maneggiataosmaltitainmodononcorretto.

Non:

•Gettareoimmergerelabatterianell'acqua

•Riscaldarlaadunatemperaturasuperioreai100gradiC(212gradiF)

•Smontarla,ricaricarlaotentarediripararla

Lebatterieusatevannosmaltiteinaccordoallanormativainvigore(DPR915/82esuccessive
disposizioniedisposizionilocali).

22ThinkCentreE73zHardwareMaintenanceManual

ATTENZIONE:

1

2

Quandovengonoinstallatiprodottilaser(qualiCD-ROM,unitàDVD-ROM,unitàabreotticheo
trasmittenti),tenerpresentequantosegue:

•Nonrimuovereglisportelli.L'aperturadiun'unitàlaserpuòdeterminarel'esposizionearadiazioni

laserpericolose.All'internodell'unitànonvisonopartisucuieffettuarel'assistenzatecnica.

•L'utilizzodicontrolli,regolazioniol'esecuzionediprocedurenondescrittinelpresentemanuale

possonoprovocarel'esposizionearadiazionipericolose.

PERICOLO

AlcuneunitàlasercontengonoundiodolaserdiClasse3AoClasse3B.Tenerpresentequantosegue:

Aprendol'unitàvengonoemesseradiazionilaser.Nonssareilfascio,nonguardarlodirettamente
construmentiotticiedevitarel'esposizionealfascio.

≥18kg≥32kg≥55kg

ATTENZIONE:

Prestareattenzionenelsollevarel'apparecchiatura.

ATTENZIONE:

Ilpulsantedicontrollodell'alimentazionepresentesull'unitàel'interruttoredell'alimentatorenon
disattivanol'alimentazionecorrentefornitaall'unità.E'possibilechel'unitàdispongadipiùcavidi
alimentazione.Perdisattivarel'alimentazionedall'unità,accertarsichetuttiicavidialimentazione
sianoscollegatidallafontedialimentazione.

Chapter2.Safetyinformation23

24ThinkCentreE73zHardwareMaintenanceManual

1

2

PELIGRO

Lacorrienteeléctricaprocedentedecablesdealimentación,teléfonosycablesdecomunicaciónpuede
serpeligrosa.

Paraevitarelriesgodedescargaeléctrica:

•Noconectenidesconecteloscablesnirealiceningunatareadeinstalación,mantenimientoo

reconguracióndeesteproductoduranteunatormentaeléctrica.

•Conectetodosloscablesdealimentaciónatomasdecorrientedebidamentecableadasy

conectadasatierra.

•Cualquierequipoqueseconecteaesteproductotambiéndebeconectarseatomasdecorriente

debidamentecableadas.

•Siemprequeseaposible,utiliceunasolamanoparaconectarodesconectarloscablesdeseñal.

Chapter2.Safetyinformation25

•Noenciendanuncaunequipocuandohayseñalesdefuego,aguaodañosestructurales.

•Desconecteloscablesdealimentación,lossistemasdetelecomunicaciones,lasredesylos

módemsconectadosantesdeabrirlascubiertasdelosdispositivos,amenosqueseindiquelo
contrarioenlosprocedimientosdeinstalaciónyconguración.

•Conecteydesconecteloscables,comosedescribeenlatablasiguiente,cuandoinstale,muevao

abralascubiertasdeesteproductoodelosdispositivosconectados.

ParaconectarParadesconectar

1.APÁGUELOtodo.

2.Enprimerlugar,conectetodosloscablesalos
dispositivos.

3.Conecteloscablesdeseñalalosconectores.

4.Enchufeloscablesdealimentaciónalastomasde
corriente.

5.Enciendaeldispositivo.

1.APÁGUELOtodo.

2.Enprimerlugar,desenchufeloscablesdealimentación
delastomasdecorriente.

3.Desconecteloscablesdeseñaldelosconectores.

4.Desconectetodosloscablesdelosdispositivos.

PRECAUCIÓN:

Cuandosustituyaunabateríadelitio,utilicesolamenteunabateríanúmerodepieza45C1566uotra
detipoequivalenterecomendadaporelfabricante.Sisusistemadisponedeunmóduloquecontiene
unabateríadelitio,reemplácelosóloconelmismotipodemódulo,delmismofabricante.Labatería
contienelitioypuedeexplotarsinoseutiliza,manipulaodesechacorrectamente.

Nodebe:

•Arrojarlaalaguaosumergirlaenella

•Exponerlaatemperaturassuperioresa100°C(212°F)

•Repararlaodesmontarla

Deshágasedelabateríasegúnespeciquenlasleyesonormaslocales.

PRECAUCIÓN:

Cuandohayaproductosláser(comounidadesdeCD-ROM,unidadesdeDVD,dispositivosdebra
ópticaotransmisores)instalados,tengaencuentalosiguiente:

•Noquitelascubiertas.Siquitalascubiertasdelproductoláser,podríaquedarexpuestoaradiación

láserpeligrosa.Dentrodeldispositivonoexisteningunapiezaquerequieraserviciotécnico.

•Siusacontrolesoajustesorealizaprocedimientosquenoseanlosespecicadosaquí,podría

exponersearadiacionespeligrosas.

PELIGRO

26ThinkCentreE73zHardwareMaintenanceManual

Algunosproductoslásertienenincorporadoundiodoláserdeclase3Aoclase3B.T engaencuentalo

1

2

siguiente:

Cuandoseabre,quedaexpuestoaradiaciónláser.Nomiredirectamentealrayoláser,nisiquieracon
instrumentosópticos,yeviteexponersedirectamentealrayoláser.

≥18kg≥32kg≥55kg

PRECAUCIÓN:

Adopteprocedimientossegurosallevantarelequipo.

PRECAUCIÓN:

Elbotóndecontroldealimentacióndeldispositivoyelinterruptordealimentacióndelafuentede
alimentaciónnodesconectanlacorrienteeléctricasuministradaaldispositivo.Además,eldispositivo
podríatenermásdeuncabledealimentación.Parasuprimirtodalacorrienteeléctricadeldispositivo,
asegúresedequetodosloscablesdealimentaciónesténdesconectadosdelatomadecorriente.

Chapter2.Safetyinformation27

28ThinkCentreE73zHardwareMaintenanceManual

Chapter3.Generalinformation

Thischapterprovidesgeneralinformationthatappliestoallmachinetypessupportedbythispublication.

Specications

Thissectionliststhephysicalspecicationsforyourcomputer.

Table1.Dimensionsandweight

Non-touchwithframestand
Height
Width
Depth
Weight

(maximum)

Environment

•Airtemperature:

Operating:10°Cto35°C(50°Fto95°F)
Storageinoriginalshippingpackage:-40°Cto60°C(-40°Fto140°F)
Storagewithoutpackage:-10°Cto60°C(14°Fto140°F)

•Humidity:

Operating:20%to80%(non-condensing)
Storage:20%to80%(non-condensing)

•Altitude:

Operating:-15.2to3048m(-50to10000ft)
Storage:-15.2to10668m(-50to35000ft)

Electricalinput

•Inputvoltage:

–Lowrange:

Minimum:100Vac
Maximum:127Vac
Inputfrequencyrange:50to60Hz

–Highrange:

Minimum:200Vac
Maximum:240Vac
Inputfrequencyrange:50to60Hz

371.5mm(14.63inches)404.5mm(15.93inches)362mm(14.25inches)

506mm(19.92inches)506mm(19.92inches)506mm(19.92inches)

95mm(9.74inches)175.5mm(6.91inches)66mm(2.60inches)

6.7kg(14.77lbs)8.5kg(18.74lbs)6.3kg(13.89lbs)

Non-touchwithmonitorstandNon-touchwithoutstand

Lenovoprograms

YourcomputercomeswithLenovoprogramstohelpyouworkmoreeasilyandsecurely.Dependingon
theWindowsoperatingsystempreinstalled,theprogramsmightvary.

©CopyrightLenovo2013,2014

29

AccessingLenovoprogramsontheWindows7operatingsystem

OntheWindows7operatingsystem,youcanaccessLenovoprogramsfromeithertheLenovo
ThinkVantage

®

ToolsprogramorfromControlPanel.

AccessingLenovoprogramsfromtheLenovoThinkVantageToolsprogram
ToaccessLenovoprogramsfromtheLenovoThinkVantageToolsprogram,clickStart➙AllPrograms➙

LenovoThinkVantageT ools.Thendouble-clickaprogramicontoaccesstheprogram.

Note:IfaprogramiconintheLenovoThinkVantageToolsprogramnavigationwindowisdimmed,it

indicatesthatyouneedtoinstalltheprogrammanually.Toinstalltheprogrammanually,double-clickthe
programicon.Then,followtheinstructionsonthescreen.Whentheinstallationprocesscompletes,the
programiconwillbeactivated.

Table2.ProgramsintheLenovoThinkVantageToolsprogram

ProgramIconname

CommunicationsUtilityWebConferencing
LenovoSolutionCenterSystemHealthandDiagnostics
PasswordManagerPasswordVault
PowerManager
RecoveryMediaFactoryRecoveryDisks
RescueandRecovery
SystemUpdate
ViewManagementUtility

®

PowerControls

EnhancedBackupandRestore
UpdateandDrivers

ScreenLayout

Note:Dependingonyourcomputermodel,someoftheprogramsmightnotbeavailable.

AccessingLenovoprogramsfromControlPanel

ToaccessLenovoprogramsfromControlPanel,clickStart➙ControlPanel.Thendependingonthe
programyouwanttoaccess,clickthecorrespondingsectionandthenclickthecorrespondinggreentext.

Note:IfyoudonotndtheprogramyouneedinControlPanel,opentheLenovoThinkVantageTools
programnavigationwindowanddouble-clickthedimmedicontoinstalltheprogramyouneed.Then,
followtheinstructionsonthescreen.Whentheinstallationprocesscompletes,theprogramiconwillbe
activated,andyoucanndtheprograminControlPanel.

TheprogramsandthecorrespondingsectionsandgreentextsinControlPanelarelistedinthefollowing
table.

Table3.ProgramsinControlPanel

Program

CommunicationsUtilityHardwareandSoundLenovo-WebConferencing
LenovoSolutionCenterSystemandSecurityLenovo-SystemHealthand

PasswordManager

PowerManager

RecoveryMedia

ControlPanelsectionGreentextinControlPanel

Diagnostics

SystemandSecurity
UserAccountsandFamilySafety

HardwareandSound
SystemandSecurity

SystemandSecurity

Lenovo-PasswordVault

Lenovo-PowerControls

Lenovo-FactoryRecoveryDisks

30ThinkCentreE73zHardwareMaintenanceManual

Table3.ProgramsinControlPanel(continued)

Program

RescueandRecovery

SystemUpdateSystemandSecurity
ViewManagementUtility

ControlPanelsectionGreentextinControlPanel

SystemandSecurity

SystemandSecurity

Lenovo-EnhancedBackupand
Restore

Lenovo-UpdateandDrivers
LenovoViewManagementUtility

Note:Dependingonyourcomputermodel,someoftheprogramsmightnotbeavailable.

AccessingLenovoprogramsontheWindows8orWindows8.1operating system

IfyourcomputerispreinstalledwiththeWindows8orWindows8.1operatingsystem,youcanaccess
Lenovoprogramsbydoingeitherofthefollowing:

•OntheWindows8operatingsystem,presstheWindowskeytogototheStartscreen.ClickaLenovo
programtolaunchit.Ifyoucannotndtheprogramyouneed,movethepointertothebottom-rightcorner
ofthescreentodisplaythecharms.ThenclicktheSearchcharmtosearchforthedesiredprogram.

•OntheWindows8.1operatingsystem,presstheWindowskey

togototheStartscreen.Clicka

Lenovoprogramtolaunchit.Ifyoucannotndtheprogramyouneed,clickthearrowiconinthe
bottom-leftcornerofthescreentogototheAppsscreen.Findthedesiredprogramintheappslistor
searchforitinthesearchboxinthetop-rightcornerofthescreen.

YourcomputersupportsthefollowingLenovoprograms:

•LenovoCompanion

•LenovoSettings

•LenovoSolutionCenter

•LenovoSupport

•PasswordManager

•SystemUpdate

LenovoSupportWebsite

TechnicalsupportinformationisavailableontheLenovoSupportWebsiteat:
http://www.lenovo.com/support

ThisWebsiteisupdatedwiththelatestsupportinformationsuchasthefollowing:

•Driversandsoftware

•Diagnosticsolutions

•Productandservicewarranty

•Productandpartsdetails

•Userguidesandmanuals

•Knowledgebaseandfrequentlyaskedquestions

Chapter3.Generalinformation31

32ThinkCentreE73zHardwareMaintenanceManual

Chapter4.Generalcheckout

Attention

Thedrivesinthecomputeryouareservicingmighthavebeenrearrangedorthedrivestartupsequence
changed.Beextremelycarefulduringwriteoperationssuchascopying,saving,orformatting.Dataor
programscanbeoverwrittenifyouselectanincorrectdrive.

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

BeforereplacinganyFRUs,ensurethatthelatestlevelofBIOSisinstalledonthesystem.Adown-levelBIOS
mightcausefalseerrorsandunnecessaryreplacementofthesystemboard.Formoreinformationonhowto
determineandobtainthelatestlevelBIOS,see“BIOSlevels”onpage111

Usethefollowingproceduretohelpdeterminethecauseoftheproblem:

1.Power-offthecomputerandallexternaldevices.

2.Checkallcablesandpowercords.

3.Setalldisplaycontrolstothemiddleposition.

4.Power-onallexternaldevices.

5.Power-onthecomputer.

•Lookfordisplayederrorcodes

•Listenforbeepcodes

•Lookforreadableinstructionsoramainmenuonthedisplay.
Ifyoudidnotreceivethecorrectresponse,proceedtostep6onpage33

Ifyoudoreceivethecorrectresponse,proceedtostep7onpage33.

6.Lookatthefollowingconditionsandfollowtheinstructions:

.

.

•IfyouhearbeepcodesduringPOST,goto“Beepsymptoms”onpage59

•IfthecomputerdisplaysaPOSTerror,goto“POSTerrorcodes”onpage60.

•Ifthecomputerhangsandnoerrorisdisplayed,continueatstep7onpage33.

7.RuntheDiagnosticprograms.See“Diagnostics”onpage53.

•Ifyoureceiveanerror,replacethepartthatthediagnosticprogramcallsout.

•Iftheteststopsandyoucannotcontinue,replacethelastdevicetested.

.

Problemdeterminationtips

Duetothevarietyofhardwareandsoftwarecombinationsthatcanbeencountered,usethefollowing
informationtoassistyouinproblemdetermination.Ifpossible,havethisinformationavailablewhen
requestingassistancefromServiceSupportandEngineeringfunctions.

•Machinetypeandmodel

•Processororharddiskdriveupgrades

•Failuresymptom
–Dodiagnosticsindicateafailure?

–What,when,where,single,ormultiplesystems?
–Isthefailurerepeatable?

©CopyrightLenovo2013,2014

33

–Hasthiscongurationeverworked?
–Ifithasbeenworking,whatchangesweremadepriortoitfailing?
–Isthistheoriginalreportedfailure?

•Diagnosticsversion
–T ypeandversionlevel

•Hardwareconguration
–Print(printscreen)congurationcurrentlyinuse

–BIOSlevel

•Operatingsystemsoftware
–T ypeandversionlevel

Notes:Toeliminateconfusion,identicalsystemsareconsideredidenticalonlyifthey:

1.Aretheexactmachinetypeandmodels

2.HavethesameBIOSlevel

3.Havethesameadapters/attachmentsinthesamelocations

4.Havethesameaddressjumpers/terminators/cabling

5.Havethesamesoftwareversionsandlevels

6.HavethesameDiagnosticDiskettes(version)

7.Havethesamecongurationoptionssetinthesystem

8.Havethesamesetupfortheoperatingsystemcontrolles

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

34ThinkCentreE73zHardwareMaintenanceManual

Chapter5.Troubleshootinganddiagnostics

Thischapterprovidesinformationaboutdiagnosingandtroubleshootingcomputerproblems.Ifyour
computerproblemisnotdescribedhere,see“LenovoSupportWebsite”onpage31
troubleshootingresources.

Basictroubleshooting

Thefollowingtableprovidesinformationtohelpyoutroubleshootyourcomputerproblems.

Note:Ifyoucannotcorrecttheproblem,havethecomputerserviced.Foralistofserviceandsupport
telephonenumbers,refertotheSafety,Warranty,andSetupGuidethatcomeswithyourcomputerorgoto
theLenovoSupportWebsiteathttp://www.lenovo.com/support/phone.

SymptomAction

Thecomputerdoesnotstart
whenyoupressthepower
switch.

Themonitorscreenisblank.

Thekeyboarddoesnotwork.

Themousedoesnotwork.

Verifythat:

•Thepowercordiscorrectlyconnectedtotherearofthecomputerandtoa
workingelectricaloutlet.

•Ifyourcomputerhasasecondarypowerswitchontherearofthecomputer,
ensurethatitisswitchedon.

•Thepowerindicatoronthefrontofthecomputerison.

•Thecomputervoltagematchesthevoltageavailableattheelectricaloutletfor
yourcountryorregion.

Verifythat:

•Themonitorsignalcableiscorrectlyconnectedtothemonitorandtothe
appropriatemonitorconnectoronthecomputer.

•Themonitorpowercordiscorrectlyconnectedtothemonitorandtoaworking
electricaloutlet.

•Themonitoristurnedonandthebrightnessandcontrastcontrolsareset
correctly.

•Thecomputervoltagematchesthevoltageavailableattheelectricaloutletfor
yourcountryorregion.

•Ifyourcomputerhastwomonitorconnectors,besuretousetheconnector
onthegraphicscard.

Verifythat:

•Thecomputeristurnedon.

•ThekeyboardissecurelyconnectedtoaUSBconnectoronthecomputer.

•Nokeysarestuck.

Verifythat:

•Thecomputeristurnedon.

•ThemouseissecurelyconnectedtoaUSBconnectoronthecomputer.

•Themouseisclean.Referto“Opticalmouse”onpage43

foradditional

forfurtherinformation.

©CopyrightLenovo2013,2014

35

SymptomAction

Theoperatingsystemdoesnot
start.

Thecomputerbeepsmultiple
timesbeforetheoperating
systemstarts.

Verifythat:

•Thestartupsequenceincludesthedevicewheretheoperatingsystemresides.
Usually,theoperatingsystemisontheharddiskdrive.Formoreinformation,
see“Selectingastartupdevice”onpage57

Verifythatnokeysarestuck.

.

AccessingControlPanelontheWindows8orWindows8.1operating system

OntheWindowsoperatingsystem,youcanviewandchangecomputersettingsthroughControlPanel.T o
accessControlPanelontheWindows8orWindows8.1operatingsystem,dooneofthefollowing:

•Fromthedesktop

1.Movethepointertothetop-rightorbottom-rightcornerofthescreentodisplaythecharms.

2.ClickSettings.

3.ClickControlPanel.

•FromtheStartscreen
–ForWindows8:

1.Movethepointertothetop-rightorbottom-rightcornerofthescreentodisplaythecharms.

2.ClickSearch.

3.OntheAppsscreen,scrolltotherightside,andclickControlPanelintheWindowsSystem
section.

–ForWindows8.1:

1.Clickthearrowiconinthebottom-leftcornerofthescreentogototheAppsscreen.

2.Scrolltotherightside,andclickControlPanelintheWindowsSystemsection.

Troubleshootingprocedure

Usethefollowingprocedureasastartingpointfordiagnosingproblemsyouareexperiencingwithyour
computer:

1.Verifythatthecablesforallattacheddevicesareconnectedcorrectlyandsecurely.

2.Verifythatallattacheddevicesthatrequireacpowerareconnectedtoproperlygrounded,functioning
electricaloutlets.

3.VerifythatallattacheddevicesareenabledintheBIOSsettingsofyourcomputer.Formoreinformation
aboutaccessingandchangingtheBIOSsettings,refertoyourChapter6“UsingtheSetupUtility
program”onpage55

4.Gotothe“Troubleshooting”onpage37andfollowtheinstructionsforthetypeofproblemyouare
experiencing.IftheT roubleshootinginformationdoesnothelpyouresolveaproblem,continuewiththe
nextstep.

5.Tryusingapreviouslycapturedcongurationtoseeifarecentchangetohardwareorsoftwaresettings
hascausedaproblem.Beforerestoringapreviousconguration,captureyourcurrentcongurationin
casetheoldercongurationsettingsdonotsolvetheproblemorhaveadverseaffects.Torestorea
capturedconguration,dothefollowing:

•ForWindows7:ClickStart➙ControlPanel➙SystemandSecurity➙System➙System

Protection➙SystemRestore.

36ThinkCentreE73zHardwareMaintenanceManual

.

•ForWindows8orWindows8.1:OpenControlPanel,andthenclickSystemandSecurity➙System
➙SystemProtection➙SystemRestore.

Ifthisdoesnotcorrecttheproblem,continuewiththenextstep.

6.Runthediagnosticprogram.See“LenovoSolutionCenter”onpage54formoreinformation.

•Ifthediagnosticprogramdetectsahardwarefailure,contacttheLenovoCustomerSupportCenter.
See“LenovoSupportWebsite”onpage31formoreinformation.

•Ifyouareunabletorunthediagnosticprogram,contacttheLenovoCustomerSupportCenter.See
“LenovoSupportWebsite”onpage31formoreinformation.

•Ifthediagnosticprogramdoesnotdetectahardwarefailure,continuewiththenextstep.

7.Useanantivirusprogramtoseeifyourcomputerhasbeeninfectedbyavirus.Iftheprogramdetectsa
virus,removethevirus.

8.Ifnoneoftheseactionssolvetheproblem,seektechnicalassistance.See“LenovoSupportWeb
site”onpage31formoreinformation.

Troubleshooting

Usethetroubleshootinginformationtondsolutionstoproblemsthathavedenitesymptoms.

Ifthesymptomyourcomputerisexperiencingoccurredimmediatelyafteryouinstalledanewhardware
optionornewsoftware,dothefollowingbeforereferringtothetroubleshootinginformation:

1.Removethenewhardwareoptionorsoftware.Ifyoumustremovethecomputercovertoremovea
hardwareoption,ensurethatyoureviewandfollowtheelectricalsafetyinformationprovidedwithyour
computer.Foryoursafety,donotoperatethecomputerwiththecoverremoved.

2.Runthediagnosticprogramtoensurethatyourcomputerisoperatingcorrectly.

3.Reinstallthenewhardwareoptionorsoftwarefollowingthemanufacturer'sinstructions.

Selecttheproblemyourcomputerisexperiencingfromthefollowinglist:

•“Audioproblems”onpage37

•“CDproblems”onpage39

•“DVDproblems”onpage40

•“Intermittentproblems”onpage41

•“Keyboard,mouse,orpointingdeviceproblems”onpage42

•“Monitorproblems”onpage44

•“Networkingproblems”onpage46

•“Optionproblems”onpage48

•“Performanceandlockupproblems”onpage49

•“Printerproblems”onpage51

•“Serialportproblems”onpage51

•“Softwareproblems”onpage52

•“USBproblems”onpage53

Audioproblems

Selectyoursymptomfromthefollowinglist:

•“NoaudioinWindows”onpage38

Chapter5.Troubleshootinganddiagnostics37

•“AnaudiodiscorAutoPlay-enableddiscdoesnotautomaticallyplaywhenitisinsertedintoadrive”
onpage38

•“Soundcomesfromoneexternalspeakeronly”onpage38

•“NoaudioinDOSapplicationsorgames”onpage39

NoaudioinWindows

Symptom:NoaudioinWindows

Actions:

•IfyouareusingpoweredexternalspeakersthathaveanOn/Offcontrol,verifythattheOn/Offcontrolis
settotheOnpositionandthespeakerpowercableisconnectedtoaproperlygrounded,functionalac
electricaloutlet.

•Ifyourexternalspeakershaveavolumecontrol,verifythatthevolumecontrolisnotsettoolow.

•ClickthespeakericonintheWindowsdesktopnoticationarea.Avolume-controlwindowopens.Press
MixertoopentheVolumeMixerwindow.Verifythatthespeakermutebuttonsarenotpressedandthe
volumesettingsarenotsettoolow.

•Somemodelshaveafrontaudiopanelyoucanusetoadjustvolume.Ifyouhaveafrontaudiopanel,
verifythatthevolumeisnotsettoolow.

•Verifythatyourexternalspeakers(andheadphones,ifused)areconnectedtothecorrectaudioconnector
onthecomputer.Mostspeakercablesarecolor-codedtomatchtheconnector.

Note:Whenexternal-speakerorheadphonecablesareattachedtotheaudioconnector,theinternal
speaker,ifpresent,isdisabled.Inmostcases,ifanaudioadapterisinstalledinoneoftheexpansionslots,
theaudiofunctionbuiltintothesystemboardisdisabled;usetheaudiojacksontheadapter.

•EnsurethattheprogramyouarerunningisdesignedforuseintheMicrosoftWindowsoperatingsystem.
IftheprogramisdesignedtoruninDOS,theprogramdoesnotusetheWindowssoundfeatureandmust
beconguredtouseSoundBlasterProorSoundBlasteremulation.

•Verifythattheaudiodevicedriversarecorrectlyinstalled.SeeMicrosoftWindowshelpsystemformore
information.

Iftheseactionsdonotcorrecttheproblem,runtheLenovoSolutionCenterprogram.Ifyouneedtechnical
assistance,see“LenovoSupportWebsite”onpage31

.

AnaudiodiscorAutoPlay-enableddiscdoesnotautomaticallyplaywhenitis
insertedintoadrive

Symptom:AnaudiodiscorAutoPlay-enableddiscdoesnotautomaticallyplaywhenitisinsertedintoadrive

Action:See“CDproblems”onpage39

.

Soundcomesfromoneexternalspeakeronly

Symptom:Soundcomesfromoneexternalspeakeronly.

Actions:

•Ensurethatthespeakercableisinsertedcompletelyintotheconnectoronthecomputer.

•Ensurethatthecablethatattachestheleftspeakertotherightspeakerissecurelyconnected.

•Right-clickthespeakericonintheWindowsdesktopnoticationarea,andthenclickPlaybackdevices.
ClickthePlaybacktab,selectSpeakers,andthenclickProperties.ClickBalanceontheLevelstab,
andverifythattheBalancesettingissetcorrectly.

38ThinkCentreE73zHardwareMaintenanceManual

Iftheseactionsdonotcorrecttheproblem,youmighthaveafailingspeaker.Havethespeakerserviced.If
youneedtechnicalassistance,see“LenovoSupportWebsite”onpage31.

NoaudioinDOSapplicationsorgames

Symptom:NoaudioinDOSapplicationsorgames

Actions:

•EnsurethattheDOSapplicationorgameisconguredtouseSoundBlasterProorSoundBlaster
emulation.Refertothedocumentationthatcomeswiththeapplicationorgameforinstructionson
settingsound-cardsettings.

•Iftheseactionsdonotcorrecttheproblem,runtheLenovoSolutionCenterprogram.Ifyouneedtechnical
assistance,see“LenovoSupportWebsite”onpage31

.

CDproblems

Selectyoursymptomfromthefollowinglist:

•“AnaudiodiscorAutoPlay-enableddiscdoesnotautomaticallyplaywhenitisinsertedintoaCD
drive”onpage39

•“ACDorDVDdoesnotwork”onpage39

•“Unabletouseastartable(bootable)recoverymedium,suchastheProductRecoveryCD,tostart
yourcomputer”onpage40

AnaudiodiscorAutoPlay-enableddiscdoesnotautomaticallyplaywhenitis
insertedintoaCDdrive

Symptom:AnaudiodiscorAutoPlay-enableddiscdoesnotautomaticallyplaywhenitisinsertedinto
aCDdrive.

Actions:

•IfyouhavemultipleCDorDVDdrivesinstalled(oracombinationofCDandDVDdrives),tryinsertingthe
discintotheotherdrive.Insomecases,onlyoneofthedrivesisconnectedtotheaudiosubsystem.

•IfyouareusingtheWindows7operatingsystem,followtheactionfor“ACDorDVDdoesnotwork”
onpage39

Ifthisdoesnotcorrecttheproblem,followtheactionfor“ACDorDVDdoesnotwork”onpage39.

.

ACDorDVDdoesnotwork

Symptom:ACDorDVDdoesnotwork.

Actions:

•Verifythatthediscisinsertedcorrectly,withitslabelup.

•Ensurethatthediscyouareusingisclean.Toremovedustorngerprints,wipethedisccleanwithasoft
clothfromthecentertotheoutside.Wipingadiscinacircularmotionmightcauselossofdata.

•Verifythatthediscyouareusingisnotscratchedordamaged.Tryinsertinganotherdiscthatyouknow
isgood.Ifyoucannotreadfromaknown-gooddisc,youmighthaveaproblemwithyourCDorDVD
driveorthecablingtoyourCDorDVDdrive.Ensurethatthepowercableandsignalcablearesecurely
connectedtothedrive.

Chapter5.Troubleshootinganddiagnostics39

Unabletouseastartable(bootable)recoverymedium,suchastheProductRecovery
CD,tostartyourcomputer

Symptom:Unabletouseastartable(bootable)recoverymedium,suchastheProductRecoveryCD,
tostartyourcomputer.

Action:EnsurethattheCDorDVDdriveisinthestartupsequencebeforetheharddiskdrive.Referto
your“Selectingorchangingthestartupdevicesequence”onpage58
changingthestartupsequence.Notethatonsomemodelsthestartupsequenceispermanentlysetand
cannotbechanged.

Iftheseactionsdonotcorrecttheproblem,runtheLenovoSolutionCenterprogram.Ifyouneedtechnical
assistance,see“LenovoSupportWebsite”onpage31.

forinformationonviewingand

DVDproblems

Selectyoursymptomfromthefollowinglist:

•“BlackscreeninsteadofDVDvideo”onpage40

•“DVDmoviewillnotplay”onpage40

•“NoaudioorintermittentaudiowhileplayingDVDmovie”onpage40

•“Playbackisverysloworchoppy”onpage41

•“Invaliddiscornodiscfoundmessage”onpage41

BlackscreeninsteadofDVDvideo

Symptom:BlackscreeninsteadofDVDvideo

Actions:

•RestarttheDVDplayerprogram.

•Closeanyopenles,turnoffthecomputer,andthenrestartthecomputer.

•T ryalowerscreenresolutionorcolordepth.

Iftheseactionsdonotcorrecttheproblem,runtheLenovoSolutionCenterprogram.Ifyouneedtechnical
assistance,see“LenovoSupportWebsite”onpage31

.

DVDmoviewillnotplay

Symptom:DVDmoviewillnotplay.

Actions:

•Ensurethatthediscsurfaceiscleanandnotscratched.

•Checkthediscorpackageforregionalcoding.Youmightneedtopurchaseadiscwithcodingfor
theregionwhereyouareusingyourcomputer.

Iftheseactionsdonotcorrecttheproblem,runtheLenovoSolutionCenterprogram.Ifyouneedtechnical
assistance,see“LenovoSupportWebsite”onpage31

.

NoaudioorintermittentaudiowhileplayingDVDmovie

Symptom:NoaudioorintermittentaudiowhileplayingDVDmovie.

Actions:

•Checkthevolumecontrolsettingsonyourcomputerandonyourspeakers.

40ThinkCentreE73zHardwareMaintenanceManual

•Ensurethatthediscsurfaceiscleanandnotscratched.

•Checkallcableconnectionstoandfromthespeakers.

•UsetheDVDmenuforthevideotoselectadifferentaudiotrack.

Iftheseactionsdonotcorrecttheproblem,runtheLenovoSolutionCenterprogram.Ifyouneedtechnical
assistance,see“LenovoSupportWebsite”onpage31

.

Playbackisverysloworchoppy

Symptom:Playbackisverysloworchoppy.

Actions:

•Disableanybackgroundprograms,suchasAntiVirusorDesktopThemes.

•Ensurethatvideoresolutionissettolessthan1152x864.

Iftheseactionsdonotcorrecttheproblem,runtheLenovoSolutionCenterprogram.Ifyouneedtechnical
assistance,see“LenovoSupportWebsite”onpage31.

Invaliddiscornodiscfoundmessage

Symptom:Invaliddiscornodiscfoundmessage

Actions:

•EnsurethataDVDdiscisinthedrivewiththeshinysideofthediscfacingdown.

•Ensurethatvideoresolutionissettolessthan1152x864.

•OncomputersthathaveaCD-ROMorCD-RWdriveinadditiontoaDVD-ROMdrive,ensurethatthe
DVDdiscisinthedrivelabeled“DVD”.

Iftheseactionsdonotcorrecttheproblem,runtheLenovoSolutionCenterprogram.Ifyouneedtechnical
assistance,see“LenovoSupportWebsite”onpage31.

Intermittentproblems

Symptom:Aproblemoccursonlyoccasionallyandisdifculttorepeat.

Actions:

•Verifythatallcablesandcordsaresecurelyconnectedtothecomputerandattacheddevices.

•Verifythatwhenthecomputerison,thefangrillisnotblocked(thereisairowaroundthegrill),andthe
fansareworking.Ifairowisblockedorthefansarenotworking,thecomputermightoverheat.

•IfSCSIdevicesareinstalled,verifythatthelastexternaldeviceineachSCSIchainisterminatedcorrectly.
(SeeyourSCSIdocumentation.)

Iftheseactionsdonotcorrecttheproblem,runtheLenovoSolutionCenterprogram.Ifyouneedtechnical
assistance,see“LenovoSupportWebsite”onpage31.

Harddiskdriveproblems

Selectyoursymptomfromthefollowinglist:

•“SomeorallharddiskdrivesmissingfromtheSetupUtilityprogram”onpage42

•““NoOperatingSystemFound”messageorthesystemnotstartingfromthecorrectharddiskdrive”
onpage42

Chapter5.Troubleshootinganddiagnostics41

SomeorallharddiskdrivesmissingfromtheSetupUtilityprogram

Symptom:SomeorallharddiskdrivesmissingfromtheSetupUtilityprogram

Actions:

•Ensurethatallharddiskdrivesignalcablesandpowercablesareconnectedcorrectly.

•Ensurethatyourcomputerisconguredcorrectlytosupporttheharddiskdrives.
–IfyourcomputerisinstalledwithveSATAharddiskdrives,ensurethattheSATAharddiskdrive

enablementmodule(onetoveharddiskdrives)isinstalled.

–IfyourcomputerisinstalledwithSASharddiskdrives,ensurethattheSASharddiskdriveenablement

module(onetoveharddiskdrives)ortheLSIMegaRAIDSASadapterisinstalled.

Iftheseactionsdonotcorrecttheproblem,runthediagnosticprogramLenovoSolutionCenter.See“Lenovo
SolutionCenter”onpage54.Ifyouneedtechnicalassistance,see“LenovoSupportWebsite”onpage31.

“NoOperatingSystemFound”messageorthesystemnotstartingfromthecorrect
harddiskdrive

Symptom:"NoOperatingSystemFound"messageorthesystemnotstartingfromthecorrectharddiskdrive

Actions:

•Ensurethatallharddiskdrivesignalcablesandpowercablesareconnectedcorrectly.

•EnsurethattheharddiskdriveyourcomputerstartsfromislistedastherststartupdeviceintheSetup
Utilityprogram.Referto“Selectingastartupdevice”onpage57.

Note:Inrarecases,theharddiskdrivewiththeoperatingsystemmightgetcorruptedordamaged.Insuch
cases,youmightneedtoreplacetheharddiskdrive.Referto“Replacingthe2.5-inchsolid-statedriveor
hybridharddiskdrive”onpage80and“Replacingthe3.5-inchharddiskdriveorhybridharddiskdrive”
onpage78.

Iftheseactionsdonotcorrecttheproblem,runtheLenovoSolutionCenterprogram.Ifyouneedtechnical
assistance,see“LenovoSupportWebsite”onpage31.

Keyboard,mouse,orpointingdeviceproblems

Selectyoursymptomfromthefollowinglist:

•“Allorsomekeysonthekeyboarddonotwork”onpage42

•“Themouseorpointingdevicedoesnotwork”onpage43

•“Thepointeronthescreendoesnotmovesmoothlywiththemouse”onpage44

•“Thengerprintreaderdoesnotwork”onpage44

•“Thewirelesskeyboarddoesnotwork”onpage44

Allorsomekeysonthekeyboarddonotwork

Symptom:Allorsomekeysonthekeyboarddonotwork.

Actions:

•Verifythatthekeyboardcableissecurelyconnectedtothecorrectconnectoronthecomputer.

•IfyouareusinganEnhancedPerformanceUSBkeyboardandoneormoreoftheRapidAccessbuttons
aretheonlykeysthatarenotworking,thesebuttonsmighthavebeendisabledorhavenotbeenassigned
toafunction.UsethehelpsystemintheEnhancedPerformanceCustomizationKeyboardprogramto
helpdiagnoseproblemswiththeRapidAccessbuttons.

42ThinkCentreE73zHardwareMaintenanceManual

ToopentheEnhancedPerformanceCustomizationKeyboardprogram,dooneofthefollowing:
–OntheWindows7operatingsystem,dothefollowing:

1.ClickStart➙ControlPanel.

2.ClickHardwareandSound.

3.ClickDevicesandPrinters.

4.Double-clickUSBEnhancedPerformanceKeyboard.TheUSBEnhancedPerformance
KeyboardCustomizationprogramstarts.

–OntheWindows8orWindows8.1operatingsystem,dothefollowing:

1.OpenControlPanel.

2.ClickHardwareandSound.

3.ClickDevicesandPrinters.

4.Double-clickUSBEnhancedPerformanceKeyboard.TheUSBEnhancedPerformance
KeyboardCustomizationprogramstarts.

Iftheseactionsdonotcorrecttheproblem,havethecomputerandkeyboardserviced.See“Lenovo
SupportWebsite”onpage31fordetails.

Themouseorpointingdevicedoesnotwork

Symptom:Themouseorpointingdevicedoesnotwork.

Actions:

•Verifythatthemouseorpointing-devicecableissecurelyattachedtothecorrectconnectoronthe
computer.Dependingonthetypeofmouseyouhave,themousecablewillconnecttoeitherthe
mouse,serial,orUSBconnector.SomekeyboardshaveintegratedUSBconnectorsthatcanbeused
foraUSBmouseorpointingdevice.

•Verifythatthedevicedriversforthemouseorpointingdeviceareinstalledcorrectly.

•IfyouareusingaUSBkeyboardormouse,verifythattheUSBconnectorsareenabledintheBIOS
settings.See“Enablingordisablingadevice”onpage57

Iftheseactionsdonotcorrecttheproblem,runtheLenovoSolutionCenterprogram.Ifyouneedtechnical
assistance,see“LenovoSupportWebsite”onpage31.

Opticalmouse

Thissectionprovidesinstructionsonhowtocleananopticalmouse.

Anopticalmouseusesalight-emittingdiode(LED)andanopticalsensortonavigatethepointer.Ifthe
pointeronthescreendoesnotmovesmoothlywiththeopticalmouse,youmightneedtocleanthemouse.

Tocleananopticalmouse,dothefollowing:

1.Turnoffyourcomputer.

2.Disconnectthemousecablefromthecomputer.

3.Turnthemouseupsidedowntocheckthelens.
a.Ifthereisasmudgeonthelens,gentlycleantheareawithaplaincotton-tippedswab.
b.Ifthereisdebrisinthelens,gentlyblowthedebrisawayfromthearea.

4.Checkthesurfaceonwhichyouareusingthemouse.Ifyouhaveaveryintricatepictureorpattern
beneaththemouse,itmaybedifcultforthedigitalsignalprocessor(DSP)todeterminechanges
inthemouseposition.

.

Chapter5.Troubleshootinganddiagnostics43

5.Reconnectthemousecabletothecomputer.

6.Turnyourcomputerbackon.

Thepointeronthescreendoesnotmovesmoothlywiththemouse

Symptom:Thepointeronthescreendoesnotmovesmoothlywiththemouse.

Action:Erraticmovementofthemousepointerisgenerallycausedbyabuildupofdirt,oils,andother
contaminantsontheballinsidethemouse.Cleanthemouse.See“Opticalmouse”onpage43for
instructions.

Thengerprintreaderdoesnotwork

Symptom:Thengerprintreaderdoesnotwork.

Action:Thefollowingcouldcausethengerprintreadernottooperateproperly:

•Notenrollingyourngerprintcorrectly.

•Scratchingthesurfaceofthereaderwithahard,pointedobject.

•Scrapingthesurfaceofthereaderwithyournailoranythinghard.

•Usingortouchingthereaderwithadirtynger.

•Thesurfaceofyourngerisverydifferentfromwhenyouenrolledyourngerprint.

Thewirelesskeyboarddoesnotwork

Symptom:Thewirelesskeyboarddoesnotwork.

Action:IftheTransceiverCommunicationsLEDisonandthewirelessKeyboarddoesnotwork,restartyour
computer.Ifrestartingyourcomputerdoesnotsolvetheproblem,verifythatthefollowingconditionsaremet:

•Thebatteriesareproperlyinstalled.

•Thebatteriesstillretaintheircurrent.

•ThewirelessKeyboardislocatedlessthantenmetersawayfromthetransceiver.

•Thetransceiverisfullyinstalled.

Action:IftheTransceiverCommunicationsLEDisnoton,reconnectthetransceiverandthekeyboard.

Monitorproblems

Note:Manymonitorshavestatus-indicatorlightsandbuilt-incontrolsforadjustingbrightness,contrast,

width,height,andotherpictureadjustments.However,thecontrolsvaryfrommonitortypetomonitortype.
Forinformationaboutthestatuslightsandusingthecontrols,refertothedocumentationthatcomes
withyourmonitor.

Selectyoursymptomfromthefollowinglist:

•“Wrongcharactersappearonthescreen”onpage45

•“Themonitorworkswhenyouturnonthecomputer,butgoesblankaftersomeperiodofcomputer
inactivity”onpage45

•“Themonitorworkswhenyouturnonthecomputer,butgoesblankwhenyoustartsomeapplication
programs”onpage45

•“Theimageappearstobeickering”onpage45

•“Theimageisdiscolored”onpage46

44ThinkCentreE73zHardwareMaintenanceManual

Wrongcharactersappearonthescreen

Symptom:Wrongcharactersappearonthescreen.

Action:Havethecomputerserviced.Fordetails,see“LenovoSupportWebsite”onpage31.

Themonitorworkswhenyouturnonthecomputer,butgoesblankaftersomeperiod
ofcomputerinactivity

Symptom:Themonitorworkswhenyouturnonthecomputer,butgoesblankaftersomeperiodofcomputer
inactivity.

Action:Thecomputerisprobablysetforenergysavingswiththepower-managementfeature.Ifthe
power-managementfeatureisenabled,disablingitorchangingthesettingsmightsolvetheproblem.

Iftheseactionsdonotcorrecttheproblem,runtheLenovoSolutionCenterprogram.Ifyouneedtechnical
assistance,see“LenovoSupportWebsite”onpage31.

Themonitorworkswhenyouturnonthecomputer,butgoesblankwhenyoustart
someapplicationprograms

Symptom:Themonitorworkswhenyouturnonthecomputer,butgoesblankwhenyoustartsome
applicationprograms.

Actions:

•Ensurethatthemonitorsignalcableissecurelyconnectedtothemonitorandthemonitorconnectoron
thecomputer.Aloosecablecancauseintermittentproblems.

•Verifythatthenecessarydevicedriversfortheapplicationprogramsareinstalled.Refertothe
documentationfortheaffectedapplicationprogramtoseeifdevicedriversarerequired.

Iftheseactionsdonotcorrecttheproblem,runtheLenovoSolutionCenterprogram.Ifyouneedtechnical
assistance,see“LenovoSupportWebsite”onpage31.

Theimageappearstobeickering

Symptom:Theimageappearstobeickering.

Actions:

•Themonitormightbeoperatinginalow-refreshratedisplaymode.Setthemonitortothehighest,
noninterlacedrefreshratesupportedbyyourmonitorandthevideocontrollerinyourcomputer.

Attention:Usingaresolutionorrefreshratethatisnotsupportedbyyourmonitormightdamageit.Check
thedocumentationthatcomeswithyourmonitortoverifythesupportedrefreshrates.

•Themonitormightbeaffectedbyinterferencefromnearbyequipment.Magneticeldsaroundother
devices,suchastransformers,appliances,uorescentlights,andothermonitorsmightbecausingthe
problem.Moveuorescentdesklightingoranyequipmentthatproducesmagneticeldsfartheraway
fromthemonitor.Ifthisdoesnotcorrecttheproblem,dothefollowing:

1.Turnoffthemonitor.(Movingacolormonitorwhileitisturnedonmightcausescreendiscoloration.)

2.Adjusttheplacementofthemonitorandotherdevicessothattheyareatleast305mm(12inches)
apart.

3.Turnonthemonitor.

•Y oucanresettherefreshratethroughyouroperatingsystemControlPanel:
OntheWindows7operatingsystem,clickStart➙ControlPanel➙HardwareandSound➙Adjust

screenresolution➙AdvancedSettings.ThenclicktheMonitortabandselectanewrefreshrate.

Chapter5.Troubleshootinganddiagnostics45

OntheWindows8orWindows8.1operatingsystem,openControlPanelandclickHardwareand
Sound➙Adjustscreenresolution➙AdvancedSettings.ThenclicktheMonitortabandselecta
newrefreshrate.

•Seeyouroperatingsystemdocumentationorhelpforfurtherinformationonmonitorsettings.

Iftheseactionsdonotcorrecttheproblem,yourmonitormightneedservice.See“LenovoSupportWeb
site”onpage31fordetails.

Theimageisdiscolored

Symptom:Theimageisdiscolored.

Action:Themonitormightbeaffectedbyinterferencefromnearbyequipment.Magneticeldsaroundother
devices,suchastransformers,appliances,uorescentlights,andothermonitorsmightbecausingthe
problem.Moveuorescentdesklightingoranyequipmentthatproducesmagneticeldsfurtherawayfrom
themonitor.Ifthisdoesnotcorrecttheproblem,dothefollowing:

1.Turnoffthemonitor.(Movingacolormonitorwhileitisturnedonmightcausescreendiscoloration.)

2.Adjusttheplacementofthemonitorandotherdevicessothattheyareatleast305mm(12inches)apart.

3.Turnonthemonitor.

Iftheseactionsdonotcorrecttheproblem,yourmonitormightneedservice.See“LenovoSupportWeb
site”onpage31fordetails.

Networkingproblems

Thefollowingarethemostcommonnetworkingproblems.Selectyournetworkingproblemfromthe
followinglist:

•“Ethernetproblems”onpage46

•“AwirelessLANproblem”onpage48

•“AwirelessWANproblem”onpage48

•“Bluetoothproblem”onpage48

Ethernetproblems

ForEthernetproblems,selectyoursymptomfromthefollowinglist:

•“Yourcomputercannotconnecttothenetwork”onpage46

•“Theadapterstopsworkingfornoapparentreason”onpage47

•“IfyourcomputerisaGigabitEthernetmodelandyouuseaspeedof1000Mbps,theconnectionfails
orerrorsoccur”onpage47

•“IfyourcomputerisaGigabitEthernetmodel,itcannotconnecttothenetworkat1000Mbps.Instead,
itconnectsat100Mbps”onpage48

Yourcomputercannotconnecttothenetwork

Symptom:Yourcomputercannotconnecttothenetwork.

Actions:Ensurethat:

•Thecableisinstalledproperly.
ThenetworkcablemustbesecurelyconnectedtoboththeEthernetconnectorofyourcomputerand

theRJ45connectorofthehub.Themaximumallowabledistancefromthecomputertohubis100
meters.Ifthecableisconnectedandthedistanceiswithinacceptablelimitsbuttheproblempersists,try
adifferentcable.

46ThinkCentreE73zHardwareMaintenanceManual

•Thecableisinstalledproperly.

•Y ouareusingthecorrectdevicedriver.
OntheWindows7operatingsystem,dothefollowing:

1.ClickStart➙ControlPanel.

2.ClickHardwareandSound.

3.ClickDeviceManager.Ifyouarepromptedforanadministratorpasswordorconrmation,typethe
passwordorprovideconrmation.

4.IfanexclamationmarkisdisplayednexttoanadapternameunderNetworkadapters,youmight
notbeusingthecorrectdriverorthedriverisnotenabled.Toupdatethedriver,right-clickthe
highlightedadapter.

5.ClickUpdateDriverSoftware,andthenfollowtheinstructionsonthescreen.

OntheWindows8orWindows8.1operatingsystem,dothefollowing:

1.OpenControlPanel.

2.ClickHardwareandSound.

3.ClickDeviceManager.Ifyouarepromptedforanadministratorpasswordorconrmation,typethe
passwordorprovideconrmation.

4.IfanexclamationmarkisdisplayednexttoanadapternameunderNetworkadapters,youmight
notbeusingthecorrectdriverorthedriverisnotenabled.Toupdatethedriver,right-clickthe
highlightedadapter.

5.ClickUpdateDriverSoftware,andthenfollowtheinstructionsonthescreen.

•Theswitchportandtheadapterhavethesameduplexsetting.
Ifyouconguredtheadapterforfullduplex,ensurethattheswitchportisalsoconguredforfullduplex.

Settingthewrongduplexmodecandegradeperformance,causedataloss,orresultinlostconnections.

•Y ouhaveinstalledallnetworkingsoftwarethatisnecessaryforyournetworkenvironment.
CheckwithyourLANadministratorforthenecessarynetworkingsoftware.

Theadapterstopsworkingfornoapparentreason

Symptom:Theadapterstopsworkingfornoapparentreason.

Action:Thenetworkdriverlesmaybecorruptormissing.Updatethedriverbyreferringtothe“Solution”
descriptionfortheproceduretoensurethatthecorrectdevicedriverisinstalled.

TheWakeonLANfeatureisnotworking

Symptom:TheWakeonLAN(WOL)featureisnotworking.

Actions:

•EnsurethatWOLisenabledintheBIOSSetupUtilityprogram.

•Ifitis,checkwithyourLANadministratorforthenecessarysettings.

IfyourcomputerisaGigabitEthernetmodelandyouuseaspeedof1000Mbps,theconnection
failsorerrorsoccur

Symptom:IfyourcomputerisaGigabitEthernetmodelandyouuseaspeedof1000Mbps,theconnection
failsorerrorsoccur.

Actions:

•UseCategory5wiringandensurethatthenetworkcableissecurelyconnected.

•Connecttoa1000BASE-Thub/switch(not1000BASE-X).

Chapter5.Troubleshootinganddiagnostics47

IfyourcomputerisaGigabitEthernetmodel,itcannotconnecttothenetworkat1000Mbps.Instead,
itconnectsat100Mbps

Symptom:IfyourcomputerisaGigabitEthernetmodel,itcannotconnecttothenetworkat1000Mbps.
Instead,itconnectsat100Mbps.

Actions:

•T ryanothercable.

•Ensurethatthelinkpartnerissettoauto-negotiate.

•Ensurethattheswitchis802.3ab-compliant(gigabitovercopper).

AwirelessLANproblem

Symptom:Youcannotconnectusingthebuilt-inwirelessnetworkingcard.

Actions:

•EnsurethatyourwirelessLANdriveristhelatestversion.ChecktheWebsiteandverifythedriverversion
supportedbyAccessConnectionsisthelatestdocumentedinthereadmele.

•Ensurethatyourcomputeriswithinrangeofawirelessaccesspoint.

•Ensurethatthewirelessradioisenabledbydouble-clickingtheAccessConnectionsiconintheWindows
noticationarea.

•CheckNetworkName(SSID),andyourencryptioninformation.UseAccessConnectionstoverifythis
case-sensitiveinformation.

AwirelessWANproblem

Message:UnauthorizedWANcardispluggedin-PoweroffandremovetheWANcard.

Action:TheWANcardisnotsupportedonthiscomputer.Removeit.

Note:SomecomputermodelsdonothaveawirelessWAN.

Bluetoothproblem

Symptom:SounddoesnotcomefromtheBluetoothheadsetorheadphonebutcomesfromthelocal
speakereventhoughtheheadsetorheadphoneisconnectedusingtheHeadsetproleorAVprole.

Action:Dothefollowing:

1.Exittheapplicationthatusesthesounddevice(forexample,WindowsMedia

2.OpenControlPanel.

3.ClickHardwareandSound➙Sound.

4.SelectthePlaybacktab.

5.IfyouareusingtheHeadsetprole,selectBluetoothHands-freeAudioandclicktheSetDefault
button.IfyouareusingtheAVprole,selectStereoAudioandclicktheSetDefaultbutton.

6.ClickOKtoclosetheSoundwindow.

®

Player).

Optionproblems

UsethisinformationtodiagnoseproblemswithLenovohardwareoptionsthatdonothavetheirown
troubleshootinginformation.

Selectyoursymptomfromthefollowinglist:

•“Anoptionthatwasjustinstalleddoesnotwork”onpage49

48ThinkCentreE73zHardwareMaintenanceManual

•“Anoptionthatpreviouslyworkeddoesnotworknow”onpage49

Anoptionthatwasjustinstalleddoesnotwork

Symptom:Anoptionthatwasjustinstalleddoesnotwork.

Action:Verifythat:

•Theoptionisdesignedforyourcomputer.

•Y oufollowedtheinstallationinstructionssuppliedwiththeoptionandtheinstallationinstructionsprovided
withyourcomputer,andalloptionles(suchasdevicedrivers,ifrequired)areinstalledcorrectly.

•Y ouhavenotloosenedotherinstalledoptionsorcables.

•Iftheoptionisanadapter,youhaveprovidedenoughhardwareresourcesfortheadaptertofunction
correctly.Seethedocumentationsuppliedwiththeadapter(aswellasthedocumentationforanyother
installedadapters)todeterminetheresourcesrequiredforeachadapter.

Iftheseactionsdonotcorrecttheproblem,runtheLenovoSolutionCenterprogram.Ifyouneedtechnical
assistance,see“LenovoSupportWebsite”onpage31.

Anoptionthatpreviouslyworkeddoesnotworknow

Symptom:Anoptionthatpreviouslyworkeddoesnotworknow.

Actions:

•Verifythatalloptionhardwareandcableconnectionsaresecure.

•Iftheoptioncomeswithitsowntestinstructions,usethoseinstructionstotesttheoption.

•IfthefailingoptionisaSCSIoption,verifythat:
–ThecablesforallexternalSCSIoptionsareconnectedcorrectly.

–ThelastoptionineachSCSIchain,ortheendoftheSCSIcable,isterminatedcorrectly.
–AllexternalSCSIoptionsareturnedon.ExternalSCSIoptionsmustbeturnedonbeforethecomputer

isturnedon.Formoreinformation,seeyourSCSIdocumentation.

•Verifythattheoptionandanyrequireddevicedriversareinstalledcorrectly.

Iftheseactionsdonotcorrecttheproblem,runtheLenovoSolutionCenterprogram.Ifyouneedtechnical
assistance,see“LenovoSupportWebsite”onpage31.

Performanceandlockupproblems

Poorperformanceandlockupproblemscanbearesultofanyofthefollowing:

•“Insufcientfreeharddiskdrivespace”onpage49

•“Excessivenumberoffragmentedles”onpage50

Makeaselectionfromtheabovelisttondoutmoreaboutthecorrectiveactionsyoucantake.

Insufcientfreeharddiskdrivespace

Symptom:Insufcientfreeharddiskdrivespace

TheWindowsoperatingsystemwillslowdownandmightproduceerrorsiftheharddiskdrivegetstoofull.

TochecktheamountoffreespaceontheWindows7operatingsystem,dothefollowing:

1.ClickStart➙Computer.

Chapter5.Troubleshootinganddiagnostics49

2.Right-clickyourCdriveentryandthenclickProperties.Theamountoffreediskspaceisdisplayed.

TochecktheamountoffreespaceontheWindows8operatingsystem,dothefollowing:

1.OpentheWindowsExplorerandclickComputer.

2.Right-clickyourCdriveentryandthenclickProperties.Theamountoffreediskspaceisdisplayed.

TochecktheamountoffreespaceontheWindows8.1operatingsystem,dothefollowing:

1.OpenFileExplorer.

2.Right-clickyourCdriveentryandthenclickProperties.Theamountoffreediskspaceisdisplayed.

Tofreeupdiskspace,doanyofthefollowing:

•Method1

1.OntheWindows7operatingsystem,clickStart➙Computer.OntheWindows8operatingsystem,
openFileExplorerandclickComputer.OntheWindows8.1operatingsystem,openFileExplorer.

2.Right-clickyourCdriveentryandthenclickProperties.

3.ClickDiskCleanup.

4.Alistofunnecessarylecategoriesisdisplayed.Selecteachlecategoryyouwanttodelete,
andthenclickOK.

•Method2

1.OpenControlPanel.

2.ClickPrograms.

3.ClickTurnWindowsfeaturesonoroff.

4.AlistofoptionalWindowscomponentsisdisplayed.Followtheinstructionsonthescreen.

•Method3

1.OntheWindows7operatingsystem,clickStart➙Computer.OntheWindows8operatingsystem,
openFileExplorerandclickComputer.OntheWindows8.1operatingsystem,openFileExplorer.

2.Right-clickyourCdriveentryandthenclickProperties.

3.ClickDiskCleanup.

4.ClickCleanupsystemles.

5.ClicktheMoreOptionstab.

6.IntheProgramsandFeaturesarea,clicktheCleanupbutton.

7.Alistofinstalledprogramsisdisplayed.Selecttheprogramthatyouwanttoremove.Click
Uninstall/ChangeorUninstall.

•CleanoutyourInbox,SentItems,andDeletedItemsfoldersfromyoure-mailapplication.Thefolder
namesandproceduresvarydependingonyoure-mailapplication.Ifyouneedassistance,seethe
helpsystemforyoure-mailapplication.

Excessivenumberoffragmentedles

Symptom:Excessivenumberoffragmentedles

Action:RuntheWindowsDiskDefragmenterprogram.

Note:Dependingonthesizeoftheharddiskdriveandamountofdatacurrentlystoredontheharddisk
drive,thedisk-defragmentationprocessmighttakeuptoseveralhourstocomplete.

OntheWindows7operatingsystem,dothefollowing:

50ThinkCentreE73zHardwareMaintenanceManual

1.Closeanyprogramsthatarecurrentlyrunningandcloseanyopenwindows.

2.ClickStart➙Computer.

3.Right-clickyourCdriveentryandthenclickProperties.

4.ClicktheToolstab.

5.ClickDefragmentNow,thenclickContinue.

6.ClickDefragmentNowagaintostartadisk-defragmentationprocess.

OntheWindows8orWindows8.1operatingsystem,dothefollowing:

1.Closeanyprogramsthatarecurrentlyrunningandcloseanyopenwindows.

2.OnWindows8,openFileExplorerandclickComputer.OnWindows8.1,openFileExplorer.

3.Right-clickyourCdriveentryandthenclickProperties.

4.ClicktheT oolstabandthenclickOptimize.

5.ClickOptimizeintheOptimizeDriveswindowthatisdisplayedtostartadisk-defragmentationprocess.

Insufcientmemory

Symptom:Insufcientmemory

Ingeneral,themorememorythatisinstalled,thebettertheWindowsoperatingsystemruns.

Action:Installadditionalmemory.Forinformationaboutpurchasingmemory,see“LenovoSupportWeb
site”onpage31.Forstep-by-stepinstructionsoninstallingmemory,see“Installingorreplacingamemory
module”onpage97.

Iftheseactionsdonotcorrecttheproblem,runthediagnosticprograms(see“LenovoSolutionCenter”on
page54forinstructions).Ifyouneedtechnicalassistance,see“LenovoSupportWebsite”onpage31.

Printerproblems

Symptom:Theprinterdoesnotwork.

Actions:Verifythat:

1.Theprinteristurnedonandisonline.

2.Paperisloadedcorrectly.

3.Theprintersignalcableissecurelyconnectedtothecorrectparallel,serial,orUSBconnectoronthe
computer.

Note:Non-IEEE-approvedprintersignalcablesmightcauseunpredictableproblems.

1.Anydevicedriversandothersoftwarethatcamewiththeprinterarecorrectlyinstalled.

2.Youhaveassignedtheprinterportcorrectlyinyouroperatingsystem,applicationprogram,orBIOS
settings.FormoreinformationaboutBIOSsettings,seeChapter6“UsingtheSetupUtilityprogram”
onpage55.

Iftheproblempersists,runthetestsdescribedinthedocumentationthatcomeswithyourprinter.Ifyou
cannotcorrecttheproblem,havethecomputerserviced.See“LenovoSupportWebsite”onpage31.

Serialportproblems

Usethisinformationtotroubleshoottheserialportanddevicesattachedtotheserialport.

Symptom:Serialportcannotbeaccessed.

Chapter5.Troubleshootinganddiagnostics51

Actions:

•Ensurethattheserialcableissecurelyconnectedtotheserialportonthecomputerandtotheserial
device.Iftheserialdevicehasitsownpowercord,ensurethatitisattachedtoaproperlygrounded
electricaloutlet.

•IftheserialdevicehasitsownOn/Offswitch,ensurethatitisintheOnposition.

•IftheserialdevicehasanOnlineswitch,ensurethatitisintheOnlineposition.

•Iftheserialdeviceisaprinter,ensurethatpaperisloadedcorrectly.

•Verifythatanysoftwaresuppliedwiththeserialdeviceiscorrectlyinstalled.Refertothedocumentation
fortheserial-deviceoption.

•Ensurethattheserial-portadapter,ifyouaddedone,isproperlyinstalledandrmlyseated.

Iftheseactionsdonotcorrecttheproblem,runtheLenovoSolutionCenterprogram.Ifyouneedtechnical
assistance,see“LenovoSupportWebsite”onpage31.

Softwareproblems

Selectyoursymptomfromthefollowinglist:

•“Whenusingasortfeature,datesdonotsortinthecorrectorder”onpage52

•“Softwaredoesnotworkasexpected”onpage52

Whenusingasortfeature,datesdonotsortinthecorrectorder

Symptom:Whenusingasortfeature,datesdonotsortinthecorrectorder.

Action:Somesoftwaredevelopedbeforetheyear2000usedonlythelasttwodigitsofayeartosort
dates,alwaysassumingthersttwodigitswere19.Consequently,theseprogramssortdatesoutoforder.
Checkwithyoursoftwaremanufacturertoseeifanyupdatesareavailable.Manysoftwaremanufacturers
makeupdatesavailablefromtheWorldWideWeb.

Softwaredoesnotworkasexpected

Symptom:Softwaredoesnotworkasexpected.

Actions:

•Mostsoftwareprogramshavebuilt-inhelpsystemsthatprovideinstructionsformosttasks.Ifyouare
havingdifcultyperformingaspecictaskwithinasoftwareprogram,refertothehelpsystemforthat
program.Helpsystemsaretypicallyaccessiblefromamenuorbuttonintheprogram,andfrequently
fromtheF1key.

•IfyouarehavingdifcultywiththeWindowsoperatingsystemoroneofitscomponents,refertothe
Windowshelpsystem.ItisaccessiblefromtheWindowsStartmenu.

•T odetermineifproblemsarecausedbynewlyinstalledsoftware,verifythat:
–Y ourcomputerhastheminimummemoryrequirementsneededtousethesoftware.Seethe

informationsuppliedwiththesoftwaretoverifymemoryrequirements.(Ifyoujustinstalledanadapter

ormemory,youmighthaveamemory-addressconict.)
–Thesoftwareisdesignedtooperateonyourcomputer.
–Othersoftwareworksonyourcomputer.
–Thesoftwareyouareusingworkscorrectlyonanothercomputer.

•Ifyoureceivedanyerrormessageswhileusingthesoftwareprogram,seetheprinteddocumentation
suppliedwiththesoftwareorthehelpsystemforthatsoftwareforadescriptionofthemessagesand
solutionstotheproblem.

52ThinkCentreE73zHardwareMaintenanceManual

•Checkwithyoursoftwaremanufacturertoseeifanyupdatesareavailable.Manysoftwaremanufacturers
makeupdatesavailablefromtheWorldWideWeb.

•Ifthesoftwareprogramusedtoworkcorrectly,butdoesnotworkcorrectlynow,dothefollowing:
–OntheWindows7operatingsystem,clickStart➙ControlPanel➙SystemandSecurity➙System

➙SystemProtection➙SystemRestore.Then,followtheinstructionsonthescreen.

–OntheWindows8orWindows8.1operatingsystem,openControlPanelandclickSystemand

Security➙System➙SystemProtection➙SystemRestore.Then,followtheinstructionson
thescreen.

•Ifyouareunabletoresolvetheproblemthroughothermethods,uninstallthesoftwareprogramand
reinstallit.

Iftheseactionsdonotcorrecttheproblem,youmightneedtechnicalassistance.Contactyoursoftware
manufacturerorsee“LenovoSupportWebsite”onpage31

fordetails.

USBproblems

Symptom:TheUSBconnectorscannotbeaccessed.

Actions:

•EnsurethattheUSBcableissecurelyconnectedtotheUSBconnectorandtotheUSBdevice.IftheUSB
devicehasitsownpowercord,ensurethatitisattachedtoaproperlygroundedelectricaloutlet.

•IftheUSBdevicehasitsownOn/Offswitch,ensurethatitisintheOnposition.

•IftheUSBdevicehasanOnlineswitch,ensurethatitisintheOnlineposition.

•IftheUSBdeviceisaprinter,ensurethatpaperisloadedcorrectly.

•EnsurethatanydevicedriversorothersoftwaresuppliedwiththeUSBdeviceiscorrectlyinstalled.
RefertothedocumentationfortheUSBdevice.

•ResetthedevicebydetachingandreattachingtheUSBconnector.

Iftheseactionsdonotcorrecttheproblem,runtheLenovoSolutionCenterprogramtotesttheUSB
connector.IftheUSBdevicecamewithitsowndiagnostics,runthosediagnosticsagainsttheUSBdevice.
Ifyouneedtechnicalassistance,see“LenovoSupportWebsite”onpage31.

Diagnostics

Thediagnosticprogramisusedtotesthardwarecomponentsofyourcomputer.Thediagnosticprogramcan
alsoreportoperating-system-controlledsettingsthatinterferewiththecorrectoperationofyourcomputer.
Youcanusethepreinstalleddiagnosticprogramtodiagnosecomputerproblems,ifyourcomputeris
runningtheWindowsoperatingsystem.

Notes:

1.YourcomputerispreinstalledwiththeLenovoSolutionCenterprogramfordiagnosticpurposes.For
moreinformationabouttheLenovoSolutionCenterprogram,see“LenovoSolutionCenter”onpage54.

2.Ifyouareunabletoisolateandrepairtheproblemyourselfafterrunningthediagnosticprogram,save
andprinttheloglescreatedbythediagnosticprogram.Y ouwillneedthelogleswhenyouspeaktoa
Lenovotechnicalsupportrepresentative.

Chapter5.Troubleshootinganddiagnostics53

LenovoSolutionCenter

TheLenovoSolutionCenterprogramenablesyoutotroubleshootandresolvecomputerproblems.It
combinesdiagnostictests,systeminformationcollection,securitystatus,andsupportinformation,along
withhintsandtipsformaximumsystemperformance.

Notes:

•TheLenovoSolutionCenterprogramcanbedownloadedfromhttp://www.lenovo.com/diags.

•IfyouareusingaWindowsoperatingsystemotherthanWindows7,Windows8,orWindows8.1,goto
http://www.lenovo.com/diagsforthelatestinformationondiagnosticsforyourcomputer.

ToruntheLenovoSolutionCenterprogram,see“Lenovoprograms”onpage29.

Foradditionalinformation,refertotheLenovoSolutionCenterhelpsystem.

Note:Ifyouareunabletoisolateandrepairtheproblemyourselfafterrunningtheprogram,saveandprint
thelogles.YouwillneedthelogleswhenyouspeaktoaLenovotechnicalsupportrepresentative.

54ThinkCentreE73zHardwareMaintenanceManual

Chapter6.UsingtheSetupUtilityprogram

TheSetupUtilityprogramisusedtoviewandchangethecongurationsettingsofyourcomputer,regardless
ofwhichoperatingsystemyouareusing.However,theoperatingsystemsettingsmightoverrideanysimilar
settingsintheSetupUtilityprogram.

StartingtheSetupUtilityprogram

TostarttheSetupUtilityprogram,dothefollowing:

1.Ensurethatyourcomputeristurnedoff.

2.RepeatedlypressandreleasetheF1keywhenturningonthecomputer.Whenyouhearmultiple
beepsorseealogoscreen,releasetheF1key.

Note:IfaPower-OnPasswordoranAdministratorPasswordhasbeenset,theSetupUtilityprogram
menuwillnotbedisplayeduntilyoutypethecorrectpassword.Formoreinformation,see“Using
passwords”onpage55

WhenthePOSTdetectsthattheharddiskdrivehasbeenremovedfromyourcomputerorthememory
modulesizehasdecreased,anerrormessagewillbedisplayedwhenyoustartthecomputerandyouwillbe
promptedtodooneofthefollowing:

•PressF1toentertheSetupUtilityprogram.

Note:AfteryouentertheSetupUtilityprogram,pressF10tosavechangesandexittheSetupUtility
program.PressEnterwhenpromptedtoconrmtheexit.Theerrormessagewillnotbedisplayedagain.

•PressF2tobypasstheerrormessageandlogintotheoperatingsystem.

.

Note:YouhavetoenablethecongurationchangedetectionfeatureforthePOSTtodetecttheremovalof
theharddiskdrive.Toenablethecongurationchangedetectionfeature,dothefollowing:

1.StarttheSetupUtilityprogram.

2.FromtheSetupUtilityprogrammainmenu,selectSecurity➙CongurationChangeDetection,
andpressEnter.

3.SelectEnabledandpressEnter.

4.PressF10tosavechangesandexittheSetupUtilityprogram.PressEnterwhenpromptedtoconrm
theexit.

Viewingandchangingsettings

TheSetupUtilityprogrammenulistsvariousitemsaboutthesystemconguration.Tovieworchange
settings,starttheSetupUtilityprogram.See“StartingtheSetupUtilityprogram”onpage55.Then,follow
theinstructionsonthescreen.

YoucanuseeitherthekeyboardorthemousetonavigatethroughBIOSmenuchoices.Thekeysusedto
performvarioustasksaredisplayedatthebottomofeachscreen.

Usingpasswords

ByusingtheSetupUtilityprogram,youcansetpasswordstopreventunauthorizedaccesstoyourcomputer
anddata.Thefollowingtypesofpasswordsareavailable:

•Power-OnPassword

©CopyrightLenovo2013,2014

55

•AdministratorPassword

•HardDiskPassword

Youdonothavetosetanypasswordstouseyourcomputer.However,usingpasswordsimproves
computingsecurity.Ifyoudecidetosetanypasswords,readthefollowingsections.

Passwordconsiderations

Apasswordcanbeanycombinationofupto64alphabeticandnumericcharacters.Forsecurityreasons,it
isrecommendedtouseastrongpasswordthatcannotbeeasilycompromised.Tosetastrongpassword,
usethefollowingguidelines:

•Haveatleasteightcharactersinlength

•Containatleastonealphabeticcharacterandonenumericcharacter

•SetupUtilityprogramandharddiskpasswordsarenotcasesensitive

•Notbeyournameoryourusername

•Notbeacommonwordoracommonname

•Besignicantlydifferentfromyourpreviouspasswords

Power-onpassword

Whenapower-onpasswordisset,youarepromptedtotypeavalidpasswordeachtimethecomputeris
turnedon.Thecomputercannotbeuseduntilthevalidpasswordistypedin.

Administratorpassword

Settinganadministratorpassworddetersunauthorizedusersfromchangingcongurationsettings.Ifyou
areresponsibleformaintainingthecongurationsettingsofseveralcomputers,youmightwanttosetan
AdministratorPassword.

Whenanadministratorpasswordisset,youarepromptedtotypeavalidpasswordeachtimeyoutryto
accesstheSetupUtilityprogram.TheSetupUtilityprogramcannotbeaccesseduntilavalidpassword
istypedin.

Ifboththepower-onpasswordandadministratorpasswordareset,youcantypeeitherpassword.However,
youmustuseyouradministratorpasswordtochangeanycongurationsettings.

Setting,changing,anddeletingapassword

Toset,change,ordeleteapassword,dothefollowing:

1.StarttheSetupUtilityprogram.See“StartingtheSetupUtilityprogram”onpage55.

2.FromtheSetupUtilityprogrammainmenu,selectSecurity.

3.Dependingonthepasswordtype,selectSetPower-OnPassword,SetAdministratorPassword,or
HardDiskPassword.

4.Followtheinstructionsontherightsideofthescreentoset,change,ordeleteapassword.

Note:Apasswordcanbeanycombinationofupto64alphabeticandnumericcharacters.Formore
information,see“Passwordconsiderations”onpage56.

Erasinglostorforgottenpasswords(clearingCMOS)

Thissectionprovidesinstructionsonhowtoeraselostorforgottenpasswords,suchasauserpassword.

56ThinkCentreE73zHardwareMaintenanceManual

Toerasealostorforgottenpassword,dothefollowing:

1.Removeallmediafromthedrivesandturnoffallattacheddevicesandthecomputer.Then,disconnect
allpowercordsfromelectricaloutletsanddisconnectallcablesthatareconnectedtothecomputer.

2.Placeasoft,cleantowelorclothonthedeskorsurface.Holdthesidesofyourcomputerandgentlylay
itdownsothatthescreenisagainstthesurfaceandthecoverisfacingup.

3.Removethecomputerstand.See“Removingandinstallingthecomputerstand”onpage71.

4.Removethecomputercover.See“Removingthecomputercover”onpage75.

5.Removethesystemboardshield.See“Removingandreinstallingthesystemboardshield”onpage83.

6.LocatetheClearComplementaryMetalOxideSemiconductor(CMOS)/Recoveryjumperonthesystem
board.See“Locatingpartsonthesystemboard”onpage69.

7.Movethejumperfromthestandardposition(pin1andpin2)tothemaintenanceposition(pin2and
pin3).

8.Installthesystemboardshield.See“Removingandreinstallingthesystemboardshield”onpage83.

9.Installthecomputercover.See“Completingthepartsreplacement”onpage108.

10.Installthecomputerstand.See“Removingandinstallingthecomputerstand”onpage71.

11.Connecttheexternalcablesandthepowercordtothecomputer.

12.Turnonthecomputerandleaveitonforapproximately10seconds.Then,turnoffthecomputerby
holdingthepowerswitchforapproximatelyveseconds.

13.Repeatstep1throughstep6.

14.MovetheClearCMOS/Recoveryjumperbacktothestandardposition(pin1andpin2).

15.Repeatstep8throughstep11.

16.Turnonthecomputertorestarttheoperatingsystem.

Enablingordisablingadevice

Thissectionprovidesinformationonhowtoenableordisableuseraccesstothefollowingdevices:

USBSetupUsethisoptiontoenableordisableaUSBconnector.WhenaUSBconnectoris

disabled,thedeviceconnectedtotheUSBconnectorcannotbeused.

SATAControllerWhenthisfeatureissettoDisable,alldevicesconnectedtotheSATAconnectors

(suchasharddiskdrivesortheopticaldrive)aredisabledandcannotbeaccessed.

Toenableordisableadevice,dothefollowing:

1.StarttheSetupUtilityprogram.See“StartingtheSetupUtilityprogram”onpage55.

2.FromtheSetupUtilityprogrammainmenu,selectDevices.

3.Dependingonthedeviceyouwanttoenableordisable,dooneofthefollowing:

•SelectUSBSetuptoenableordisableaUSBdevice.

•SelectATADriveSetuptoenableordisableaSATAdevice.

4.SelectthedesiredsettingsandpressEnter.

5.PressF10tosavechangesandexittheSetupUtilityprogram.See“ExitingtheSetupUtilityprogram”
onpage58.

Selectingastartupdevice

Ifyourcomputerdoesnotstartupfromadevicesuchasthediscorharddiskdriveasexpected,dooneof
thefollowingtoselectthestartupdeviceyouwant.

Chapter6.UsingtheSetupUtilityprogram57

Selectingatemporarystartupdevice

Usethisproceduretoselectatemporarystartupdevice.

Note:Notalldiscsandharddiskdrivesarebootable.

1.Turnoffyourcomputer.

2.RepeatedlypressandreleasetheF12keywhenturningonthecomputer.WhenthePleaseselect
bootdevicewindowdisplays,releasetheF12key.

3.SelectthedesiredstartupdeviceandpressEnter.Thecomputerwillstartupfromthedeviceyou
selected.

Note:SelectingastartupdevicefromthePleaseselectbootdevicewindowdoesnotpermanentlychange
thestartupsequence.

Selectingorchangingthestartupdevicesequence

Tovieworpermanentlychangetheconguredstartupdevicesequence,dothefollowing:

1.StarttheSetupUtilityprogram.See“StartingtheSetupUtilityprogram”onpage55.

2.FromtheSetupUtilityprogrammainmenu,selectStartup.

3.SelectthedevicesforthePrimaryStartupSequence,theAutomaticStartupSequence,andtheError
StartupSequence.Readtheinformationdisplayedontherightsideofthescreen.

4.PressF10tosavechangesandexittheSetupUtilityprogram.See“ExitingtheSetupUtilityprogram”
onpage58.

ChangingtheBIOSsettingsbeforeinstallinganewoperatingsystem

BIOSsettingsvarybyoperatingsystem.ChangetheBIOSsettingsbeforeinstallinganewoperatingsystem.

TochangetheBIOSsettings,dothefollowing:

1.StarttheSetupUtilityprogram.See“StartingtheSetupUtilityprogram”onpage55.

2.FromtheSetupUtilityprogrammainmenu,selectExit➙OSOptimizedDefault.

3.Dependingontheoperatingsystemtobeinstalled,dooneofthefollowing:

•T oinstalltheWindows8(64-bit)orWindows8.1(64-bit)operatingsystem,selectEnabled.

•T oinstallanoperatingsystemotherthanWindows8(64-bit)orWindows8.1(64-bit),selectDisabled.

4.SelectYesinthewindowdisplayedandpressEntertoconrmyourselection.

5.PressF10tosavechangesandexittheSetupUtilityprogram.See“ExitingtheSetupUtilityprogram”
onpage58.

ExitingtheSetupUtilityprogram

Afteryounishviewingorchangingsettings,pressEsctoreturntotheSetupUtilityprogrammainmenu.
YoumighthavetopressEscseveraltimes.Dooneofthefollowing:

•Ifyouwanttosavethenewsettings,pressF10tosavechangesandexittheSetupUtilityprogram.

•Ifyoudonotwanttosavethesettings,selectExit➙DiscardChangesandExit,andthenpressEnter.
WhentheResetWithoutSavingwindowshows,selectYes,andthenpressEntertoexittheSetup
Utilityprogram.

•Ifyouwanttoreturntothedefaultsettings,pressF9toloadthedefaultsettings,andthenpressF10to
saveandexittheSetupUtilityprogram.

58ThinkCentreE73zHardwareMaintenanceManual

Chapter7.Symptom-to-FRUIndex

TheSymptom-to-FRUindexlistserrorsymptomsandpossiblecauses.Themostlikelycauseislistedrst.
AlwaysbeginwithChapter4“Generalcheckout”onpage33
whichFRUstohaveavailablewhenservicingacomputer.Ifyouareunabletocorrecttheproblemusingthis
index,goto“Undeterminedproblems”onpage63.

Notes:

•Ifyouhavebothanerrormessageandanincorrectaudioresponse,diagnosetheerrormessagerst.

•Ifyoucannotrunthediagnostictestsoryougetadiagnosticerrorcodewhenrunningatest,butdidreceivea
POSTerrormessage,diagnosethePOSTerrormessagerst.

•Ifyoudidnotreceiveanyerrormessage,lookforadescriptionofyourerrorsymptomsintherstpartofthisindex.

Harddiskdrivebooterror

Aharddiskdrivebooterrorcanhavethefollowingcauses.

ErrorFRU/Action

Thestart-updriveisnotinthebootsequencein
conguration.

Nooperatingsysteminstalledonthebootdrive.Installanoperatingsystemonthebootdrive.
Thebootsectoronthestartupdriveiscorrupted.

Thedriveisdefective.

.Thisindexcanalsobeusedtohelpyoudecide

Checkthecongurationandensurethestart-updriveis
inthebootsequence.

Thedrivemustbeformatted.Dothefollowing:

1.Attempttobackupthedataonthefailingharddisk
drive.

2.Usingtheoperatingsystemprograms,formatthe
harddiskdrive.

Replacetheharddiskdrive.

Powersupplyproblems

Ifyoususpectapowerproblem,usethefollowingprocedures.

Check/VerifyFRU/Action

Checkthefollowingforproperinstallation.

•Powercord

•On/Offswitchconnector

•On/Offswitchpowersupplyconnector

•Systemboardpowersupplyconnectors

•Microprocessor(s)connection
Checkthepowercordforcontinuity.
Checkthepower-onswitchforcontinuity.

Reseatconnectors

Powercord
Power-onswitch

Beepsymptoms

Beepsymptomsaretonesoraseriesoftonesseparatedbypauses(intervalswithoutsound)duringPOST.

©CopyrightLenovo2013,2014

59

Thefollowingtabledescribesthebeepsymptoms.

BeepsymptomFRU/Action
2shortbeepsCMOSsettingerrorCommonerrorcode,seethedetailfailureinformationin

.

3shortand1longbeepsDRAMmemoryerror

“POSTerrorcodes”onpage60
Performthefollowingactionsinorder.

1.Makesurethememorymodule(s)areproperlyseated
intheconnector(s).

2.Replacethememorymodule(s).

3.Replacethesystemboard.

POSTerrorcodes

Eachtimeyoupower-onthesystem,itperformsaseriesofteststhatchecktheoperationofthesystem
andsomeoptions.ThisseriesoftestsiscalledthePower-OnSelf- T est,orPOST.POSTdoesthefollowing
operations.

•Checkssomebasicsystem-boardoperations

•Checksthememoryoperation

•Startsthevideooperation

•Veriesthatthebootdriveisworking

IfthePOSTdetectsaproblem,anerrormessageappearsonthescreen.Asingleproblemcancauseseveral
errormessagestoappear.Whenyoucorrectthecauseofthersterrormessage,theothererrormessages
probablywillnotappearonthescreenthenexttimeyouturnonthesystem.

ErrorcodePOSTerrormessageDescription/Action

0135

0211

0164MemorysizedecreasedPressF10toexit.
1762

Fanfailure

Keyboardnotfound

Congurationchangehasoccurred

Thesystemmightbeoverheating.

PressF10toexit.

Note:Iftheproblemiscausedbythe
microprocessorfan,pressF10will
notsolvetheproblem.

Whenthereisnokeyboarddetected,
theerrormessagewillbedisplayed.

Thiserrormessageisdisplayedwhen
aharddiskdriveoropticaldrive
changehasbeenmade.

PressF10toexit.

60ThinkCentreE73zHardwareMaintenanceManual

ErrorcodePOSTerrormessageDescription/Action

1820

1962

Morethanoneexternalngerprint
readerareattached.Poweroffand
removeallbutthereaderthatyouset
upwithinyourmainoperatingsystem.

Nooperatingsystemfound.Press
anykeytorepeatbootsequence.

Miscellaneouserrorconditions

Message/SymptomFRU/Action

ChangingdisplaycolorsDisplay/Monitor
Computerwillnotpower-off.See“Harddiskdriveboot

error”onpage59.

ComputerwillnotRPLfromserver

ComputerwillnotperformaWakeOnLAN

Deadcomputer.See“Harddiskdrivebooterror”onpage

.

59

Diskettedrivein-uselightremainsonordoesnotlight
whendriveisactive.

Blankscreenexceptforashingcursor.

®

(ifapplicable)1.Checkpowersupplyandsignalcableconnections

1.PowerSwitch

2.SystemBoard

3.Risercard,ifinstalled.

1.Ensurethatnetworkisinstartupsequenceasrst

deviceorrstdeviceafterdiskette.

2.EnsurethatnetworkadapterisenabledforRPL.

3.Networkadapter(Advisenetworkadministratorof

newMACaddress)

tonetworkadapter.

2.Ensurethattheoperatingsystemsettingsaresetto

enableWakeonLAN.

3.EnsureWakeOnLANfeatureisenabledin

Setup/Conguration(see“StartingtheSetupUtility
program”onpage55

4.EnsurenetworkadministratorisusingcorrectMAC

address.

5.EnsurenointerruptorI/Oaddressconicts.

6.Networkadapter(advisenetworkadministratorof

newMACaddress)

1.PowerSupply

2.SystemBoard

1.DisketteDrive

2.SystemBoard

3.DisketteDriveCable

1.SystemBoard

2.PrimaryHardDiskDrive

3.HardDiskDriveCable

Ifmorethanoneexternalngerprint
readerareconnectedtoacomputer,
thiserrormessagewillbedisplayed
toinformyoutoremoveallofthe
ngerprintkeyboardsexceptthe
onecompatiblewiththengerprint
applicationonyourcomputer.

ThiserroroccursonlyafterthePOST
iscompleted.

Pressanykeytorepeatboot
sequence.

)

Chapter7.Symptom-to-FRUIndex61

Message/SymptomFRU/Action

IncorrectmemorysizeduringPOST

"InsertaDiskette"iconappearswithaknown-good
diagnosticsdisketteintherst3.5-inchdiskettedrive.

Intensityorcolorvariesfromlefttorightofcharacters
andcolorbars

Nopowerorfannotrunning
Non-systemdiskordiskerror-typemessagewitha

known-gooddiagnosticdiskette.

Otherdisplaysymptomsnotlistedabove(includingblank
orillegibledisplay)

Power-onindicatororharddiskdrivein-uselightnoton,
butcomputerworkscorrectly

Printerproblems1.Printer

Programloadsfromtheharddiskwithaknown-good
diagnosticsdisketteintherst3.5-inchdiskettedrive

RPLcomputercannotaccessprogramsfromitsownhard
disk.

RPLcomputerdoesnotRPLfromserver

Serialorparallelportdevicefailure(systemboardport)1.ExternalDeviceSelf-TestOK?

1.RuntheMemorytests.

2.MemoryModule

3.SystemBoard

1.SystemBoard

2.DisketteDriveCable

3.NetworkAdapter

1.Display

2.Videoadapter(ifpresent)

3.SystemBoard

1.See“Harddiskdrivebooterror”onpage59.

1.DisketteDrive

2.SystemBoard

3.DisketteDriveCable

1.Display

2.SystemBoard

1.Powerswitch/LEDassembly

2.SystemBoard

2.SystemBoard

1.RuntheSetupUtilityprogramandcheckStartup
sequence.

2.DisketteDrive

3.DisketteDriveCable

4.SystemBoard

5.PowerSupply

1.IfnetworkadministratorisusingLCCMHybridRPL,
checkstartupsequence:

a.Firstdevice-network
b.Seconddevice-harddisk

2.Harddiskdrive

1.Checkstartupsequence.

2.CheckthenetworkadapterLEDstatus.

2.ExternalDevice

3.Cable

4.SystemBoard

62ThinkCentreE73zHardwareMaintenanceManual

Message/SymptomFRU/Action

Serialorparallelportdevicefailure(adapterport)1.ExternalDeviceSelf-TestOK?

2.ExternalDevice

3.Cable

4.AlternateAdapter

5.SystemBoard

Someorallkeysonthekeyboarddonotwork

1.Keyboard

2.KeyboardCable

3.SystemBoard

Undeterminedproblems

Thissectionprovidesinstructionsonhowtondoutthefailingdevicesoradapters.

1.Power-offthecomputer.

2.Removeordisconnectthefollowingcomponents(ifinstalled)oneatatime.
a.Externaldevices(modem,printer,ormouse)
b.Anyadapters
c.Memorymodules
d.Extendedvideomemory
e.ExternalCache
f.ExternalCacheRAM
g.Harddiskdrive
h.Diskettedrive

3.Power-onthecomputertore-testthesystem.

4.Repeatsteps1through3untilyoundthefailingdeviceoradapter.

Ifalldevicesandadaptershavebeenremoved,andtheproblemcontinues,replacethesystemboard.

Chapter7.Symptom-to-FRUIndex63

64ThinkCentreE73zHardwareMaintenanceManual

Chapter8.Locations

Thischapterintroducesthelocationsofthecomputerhardwarecomponents.

Locatingconnectors,controls,andindicatorsonthefrontofyour computer

Figure1“Frontconnector,control,andindicatorlocations”onpage65showsthelocationsofthe
connectors,controls,andindicatorsonthefrontofyourcomputer.

Figure1.Frontconnector,control,andindicatorlocations

1Integratedmicrophone
2Integratedcameraindicator
3Integratedcamera8Headphoneconnector
4Poweronindicator9Microphoneconnector
5Internalspeaker

©CopyrightLenovo2013,2014

6Cardreader(availableinsomemodels)
7USB3.0connector(USBport2)

10USB3.0connector(USBport1)

65

Locatingconnectorsontherearofyourcomputer

Figure2“Rearconnectorlocations”onpage66showsthelocationsoftheconnectorsontherearofyour
computer.Someconnectorsontherearofyourcomputerarecolor-codedtohelpyoudeterminewhereto
connectthecablesonyourcomputer.

Figure2.Rearconnectorlocations

1Powercordconnector6Powerbutton
2Ethernetconnector7Brightness-downcontrol
3VGA-outconnector
4USB2.0connectors(USBports3to6)9Security-lockslot
5Serialport(availableinsomemodels)10Opticaldrive

8Brightness-upcontrol

LocatingmajorFRUsandCRUs

Figure3“LocatingmajorFRUsandCRUs”onpage67showsthelocationsofthemajorFRUsandCRUsin
thecomputer.Toremovethecomputercover,see“Removingthecomputercover”onpage75.

66ThinkCentreE73zHardwareMaintenanceManual

Figure3.LocatingmajorFRUsandCRUs

Chapter8.Locations67

ThefollowingtableliststhemajorFRUsshowninFigure3“LocatingmajorFRUsandCRUs”onpage67and
identieswhichFRUsarealsoself-serviceCRUsoroptional-serviceCRUs.

Notes:

•Self-serviceCRUs:TheseCRUsunplugoraresecuredbynomorethantwoscrews.Examplesof
thesetypesofCRUsincludethekeyboard,themouse,anyUSBdevice,andthepowercord.Other
self-serviceCRUsdependingonproductdesignmightincludememorymodules,adaptercards,hard
diskdrives,andopticaldrives.

•Optional-serviceCRUs:TheseCRUsareisolatedpartswithinthecomputerandareconcealedbyan
accesspanelthatistypicallysecuredbymorethantwoscrews.Oncetheaccesspanelisremoved,the
specicCRUisvisible.

NumberFRUdescription

1

2

3

4

5

6

FramestandNoYes
Computercover
Systemboardshield
Microprocessorfan
HandlebarNoNo
Heatsinkassembly(withMicroprocessor

underneath)

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

MemorymoduleNoNo
BatteryNoNo
Systemboard
LCDbracket
LCDpanel
Cardreader
Wi-FiNoNo
FootstandNoYes
RearI/Oassembly
InternalspeakerNoNo
PowersupplyNoNo
InternalspeakerNoNo
FootstandNoNo
Controlbuttonboard
HarddiskdriveNoYes
Hard-disk-driveEMIshieldNoNo
LCDconverterboard
Opticaldrive
VESAmountbracket
IntegratedcameraNoNo
KeyboardYesNo
MouseY esNo

Self-serviceCRUOptional-serviceCRU

NoYes
NoNo
NoNo

NoNo

NoNo
NoNo
NoNo
NoNo

NoNo

NoNo

NoNo
NoNo
NoNo

68ThinkCentreE73zHardwareMaintenanceManual

LookingupFRUinformation

FordetailedFRUinformation,suchastheFRUpartnumbersandsupportedcomputermodels,goto:
http:/www.lenovo.com/serviceparts-lookup

Locatingpartsonthesystemboard

Figure4“Locationsofthepartsandconnectorsonthesystemboard”onpage69showsthelocations
ofthepartsandconnectorsonthesystemboard.

Figure4.Locationsofthepartsandconnectorsonthesystemboard

1LCDpanelconnector12RearI/Oconnector
2Memoryslots(2)13Serialconnector
3Integratedcameracableconnector

4Coverpresenceswitchconnector(Intrusionswitch

connector)

5Touchcontrolconnector(notenabled)16PS/2keyboardandPS/2mouseconnector
6Battery

7ClearComplementaryMetalOxideSemiconductor

(CMOS)/Recoveryjumper

8ClearCMOS219Controlbuttonboardconnector

14SATA3.0connector(Harddiskdrivesignalconnector)
15SATApowerconnector(Harddiskdriveandopticaldrive

powerconnector)

17SATA3.0connector(Opticaldrivesignalconnector)
18Converterboardconnector

Chapter8.Locations69

9MiniPCIexpresscardslot(WI-FIcardconnector)2014-pinpowerconnector(Powersupplyassembly

connector)

10Internalspeakercableconnector

11Cardreaderconnector

21Microprocessorfanconnector
22Microprocessor

70ThinkCentreE73zHardwareMaintenanceManual

Chapter9.ReplacingFRUs

ThischapterprovidesinstructionsaboutremovingorreplacingmajorFRUs.NotallFRUsaredocumented.

Important

BeforeyoureplaceanyFRU,readChapter2“Safetyinformation”onpage3.Theseprecautionsand
guidelineswillhelpyouworksafely.

FRUreplacementsaretobedonebytrainedservicetechniciansonly.

ThischapterprovidesinstructionsaboutremovingorreplacingmajorFRUs.NotallFRUsaredocumented.

Removingandinstallingthecomputerstand

CAUTION:

Turnoffthecomputerandwaitthreetoveminutestoletthecomputercoolbeforeremovingthe
computerstand.

Attention:DonotopenyourcomputerorattemptanyrepairbeforereadingandunderstandingtheChapter

2“Safetyinformation”onpage3

Thissectionprovidesinstructionsonhowtoremoveandinstallthecomputerstand.

.

Thecomputermightbeinstalledwithamonitorstandoraframestand.

•T oremoveandinstalltheframestand,see“Removingandreinstallingtheframestand”onpage71

•T oremoveandinstallthemonitorstand,see“Removingandinstallingthemonitorstand”onpage73

Removingandreinstallingtheframestand

Attention:Donotopenyourcomputerorattemptanyrepairbeforereadingandunderstandingthe

“Importantsafetyinformation”onpage1

Thissectionprovidesinstructionsonhowtoremoveandreinstalltheframestand.

CAUTION:

Turnoffthecomputerandwaitthreetoveminutestoletthecomputercoolbeforeremovingthe
framestand.

Toremoveandreinstalltheframestand,dothefollowing:

1.Removeanymediafromthedrivesandturnoffallattacheddevicesandthecomputer.

2.Disconnectallpowercordsfromelectricaloutlets.

3.Disconnectthepowercords,Input/Outputcables,andanyothercablesthatareconnectedtothe
computer.See“Locatingconnectors,controls,andindicatorsonthefrontofyourcomputer”onpage
65

and“Locatingconnectorsontherearofyourcomputer”onpage66.

4.Placeasoft,cleantowelorclothonthedeskorsurface.Holdthesidesofyourcomputerandgentlylay
itdownsothatthescreenisagainstthesurfaceandthecoverisfacingup.

.

.

©CopyrightLenovo2013,2014

71

5.Removethesheetmetal.Savethesheetmetalforrecoveringthescrewhole.Loosenthescrew1that
securestheframestand,andthenlifttheframestandupandremoveitfromthecomputer.

Figure5.Removingtheframestand

6.Toinstalltheframestand,positiontheframestandoverthecomputersothatthescrewholeinthe
standalignswiththecorrespondingholeinthecomputercover.

Figure6.Reinstallingtheframestand

72ThinkCentreE73zHardwareMaintenanceManual

7.Reinstallthescrewtosecuretheframestandtothecomputer.Recoverthescrewholewiththe
sheetmetal.

Figure7.Reinstallingthescrewtosecuretheframestandtothecomputer

Removingandinstallingthemonitorstand

Attention:Donotopenyourcomputerorattemptanyrepairbeforereadingandunderstandingthe

“Importantsafetyinformation”onpage1

Thissectionprovidesinstructionsonhowtoinstallthemonitorstand.

Note:Themonitorstandisavailableonlyinsomemodels.

Toinstallthemonitorstand,dothefollowing:

1.Removeanymediafromthedrivesandturnoffallattacheddevicesandthecomputer.

2.Disconnectallpowercordsfromelectricaloutlets.

3.Disconnectthepowercords,Input/Outputcables,andanyothercablesthatareconnectedtothe
computer.See“Locatingconnectors,controls,andindicatorsonthefrontofyourcomputer”onpage
65and“Locatingconnectorsontherearofyourcomputer”onpage66.

4.Placeasoft,cleantowelorclothonthedeskorsurface.Holdthesidesofyourcomputerandgentlylay
itdownsothatthescreenisagainstthesurfaceandthecoverisfacingup.

5.Ifyourcomputerisinstalledwithaframestand,removetheframestand.See“Removingandreinstalling
theframestand”onpage71

Chapter9.ReplacingFRUs73

6.Ifyourcomputerisinstalledwithamonitorstand,removethetwoscrewsthatsecurethemonitorstand,
andthenremovethemonitorstandfromthecomputer.

Figure8.Removingthemonitorstand

7.Toinstallthemonitorstand,placethemonitorstandonthecomputersothatthetwoplastictabsonthe
monitorstandalignwiththecorrespondingholesinthecomputer.Installthetwoscrewstosecurethe
monitorstandtothecomputer.

Figure9.Installingthemonitorstand

8.Ifneeded,openthecablemanagerandroutethecablesconnectedtothecomputerthroughthecable
managertokeepyourworkspaceneat.

74ThinkCentreE73zHardwareMaintenanceManual

Removingthecomputercover

Attention:Donotopenyourcomputerorattemptanyrepairbeforereadingandunderstandingthe

“Importantsafetyinformation”onpage1

Thissectionprovidesinstructionsonhowtoremovethecomputercover.

CAUTION:

Turnoffthecomputerandwaitthreetoveminutestoletthecomputercoolbeforeremovingthe
framestand.

Toremovethecomputercover,dothefollowing:

1.Removeallmediafromthedrivesandturnoffallattacheddevicesandthecomputer.Then,disconnect
allpowercordsfromelectricaloutletsanddisconnectallcablesthatareconnectedtothecomputer.

2.Placeasoft,cleantowelorclothonthedeskorotheratsurface.Holdthesidesofyourcomputerand
gentlylayitdownsothatthescreenisagainstthesurfaceandthecoverisfacingup.

3.Removeanylockingdevicethatsecuresthecomputercover,suchasanintegratedcablelock.

4.Removetheframestand.See“Removingandreinstallingtheframestand”onpage71.

5.Loosenthetwoscrews1atthebottomofthecomputer,andthenliftthecomputercoveruptoremove
itfromthecomputer.

Note:Afterloosethescrews,youmightneedtousethescrew-drivertopryaroundthewholecomputer
toopenthecomputercover.

Figure10.Removingthecomputercover

Removingandreinstallingthefeetstand

Attention:Donotopenyourcomputerorattemptanyrepairbeforereadingandunderstandingthe

“Importantsafetyinformation”onpage1

Thissectionprovidesinstructionsonhowtoremoveandreinstallthefeetstand.

Chapter9.ReplacingFRUs75

CAUTION:

Turnoffthecomputerandwaitthreetoveminutestoletthecomputercoolbeforeremovingthe
feetstand.

Toremoveandreinstallthefeetstand,dothefollowing:

1.Removeanymediafromthedrivesandturnoffallattacheddevicesandthecomputer.

2.Disconnectallpowercordsfromelectricaloutlets.

3.Disconnectthepowercords,Input/Outputcables,andanyothercablesthatareconnectedtothe
computer.See“Locatingconnectors,controls,andindicatorsonthefrontofyourcomputer”onpage
65and“Locatingconnectorsontherearofyourcomputer”onpage66.

4.Placeasoft,cleantowelorclothonthedeskorthesurface.Holdthesidesofyourcomputerandgently
layitdownsothatthescreenisagainstthesurfaceandthecoverisfacingup.

5.Removethecomputercover.See“Removingthecomputercover”onpage75.

6.Removethescrewsthatsecurethefeetstand,andthenremovethefeetstandfromthecomputer.

Figure11.Removingthefeetstand

7.Toreinstallthefeetstand,placethefeetstandonthecomputersothatthescrewholesalignwiththe
correspondingholesinthecomputer,andthenreinstallthescrewstosecurethefeetstandtothe
computer.

Removingandinstallingthehard-disk-driveEMIshield

Attention:DonotopenyourcomputerorattemptanyrepairbeforereadingandunderstandingtheChapter

2“Safetyinformation”onpage3

Thissectionprovidesinstructionsonhowtoremoveandinstallthehard-disk-driveelectromagnetic
interference(EMI)shield.

Toremoveandinstallthehard-disk-driveEMIshield,dothefollowing:

1.Removeallmediafromthedrivesandturnoffallattacheddevicesandthecomputer.Then,disconnect
allpowercordsfromelectricaloutletsanddisconnectallcablesthatareconnectedtothecomputer.

2.Placeasoft,cleantowelorclothonthedeskorsurface.Holdthesidesofyourcomputerandgentlylay
itdownsothatthescreenisagainstthesurfaceandthecoverisfacingup.

76ThinkCentreE73zHardwareMaintenanceManual

.

3.Removethecomputerstand.See“Removingandinstallingthecomputerstand”onpage71.

4.Removethecomputercover.See“Removingthecomputercover”onpage75.

5.Pivotthehard-disk-driveEMIshieldasshowntoremoveitfromthehard-disk-drivebracket,andthen
lifttheEMIshieldoutofthechassis.

Figure12.Removingthehard-disk-driveEMIshield

Chapter9.ReplacingFRUs77

6.Toinstallthehard-disk-driveEMIshield,aligntheholeintheEMIshieldwiththestandoffinthechassis
asshown.Then,pushtheEMIshieldstraightdownuntilitissecuredbythestandoffrmlyandthethree
tabs1ontheEMIshieldalsoaresecuredbythecorrespondingholesinthechassis.

Figure13.Installingthehard-disk-driveEMIshield

Replacingthe3.5-inchharddiskdriveorhybridharddiskdrive

Attention:DonotopenyourcomputerorattemptanyrepairbeforereadingandunderstandingtheChapter

2“Safetyinformation”onpage3

Thissectionprovidesinstructionsonhowtoreplacethe3.5-inchharddiskdriveorhybridharddiskdrive.

Note:The3.5-inchhybridharddiskdriveisavailableonlyinsomemodels.T oreplacethe3.5-inchhybrid
harddiskdrive,followthestepsofreplacingthe3.5-inchharddiskdrive.

Toreplacethe3.5-inchharddiskdrive,dothefollowing:

1.Removeallmediafromthedrivesandturnoffallattacheddevicesandthecomputer.Then,disconnect
allpowercordsfromelectricaloutletsanddisconnectallcablesthatareconnectedtothecomputer.

2.Placeasoft,cleantowelorclothonthedeskorsurface.Holdthesidesofyourcomputerandgentlylay
itdownsothatthescreenisagainstthesurfaceandthecoverisfacingup.

3.Removethecomputerstand.See“Removingandinstallingthecomputerstand”onpage71.

4.Removethecomputercover.See“Removingthecomputercover”onpage75.

78ThinkCentreE73zHardwareMaintenanceManual

.

5.Removethehard-disk-driveEMIshield.See“Removingandinstallingthehard-disk-driveEMIshield”
onpage76.

6.Removethescrew1,andthenpivotthehard-disk-drivebracketwiththeharddiskdriveasshownto
removeitfromthechassis.

Figure14.Removingthehard-disk-drivebracketwiththeharddiskdrive

7.Disconnectthecablefromtheharddiskdrive.

8.Removethefourscrewsthatsecuretheharddiskdrivetothebracket,andthenremovetheharddisk
drivefromthebracket.Donottouchthecircuitboardonthebottomoftheharddiskdrive.

Figure15.Removingtheharddiskdrivefromthebracket

9.Toinstallthenewharddiskdrive,positionthenewharddiskdriveinthehard-disk-drivebracketso
thatthefourscrewholesintheharddiskdrivealignwiththecorrespondingholesinthebracket.Then,
installthefourscrewstosecuretheharddiskdrivetothebracket.

Chapter9.ReplacingFRUs79

10.Connectthehard-disk-drivecabletothenewharddiskdrive.

11.Positionthebracketwiththenewharddiskdriveinthechassissothatthescrewholeinthebracket
alignswiththecorrespondingholeinthechassis.Then,installthescrewtosecurethebracketwiththe
harddiskdrivetothechassis.

12.Installthehard-disk-driveEMIshield.See“Removingandinstallingthehard-disk-driveEMIshield”
onpage76.

Whattodonext:

•T oworkwithanotherpieceofhardware,gototheappropriatesection.

•T ocompletetheinstallationorreplacement,goto“Completingthepartsreplacement”onpage108.

Replacingthe2.5-inchsolid-statedriveorhybridharddiskdrive

Attention:DonotopenyourcomputerorattemptanyrepairbeforereadingandunderstandingtheChapter

2“Safetyinformation”onpage3.

Thissectionprovidesinstructionsonhowtoreplacethe2.5-inchsolid-statedriveorhybridharddiskdrive.

Note:The2.5-inchsolid-statedriveandthe2.5-inchhybridharddiskdriveareavailableonlyinsomemodels.
Toreplacethe2.5-inchhybridharddiskdrive,followthestepsofreplacingthe2.5-inchsolid-statedrive.

Toreplacethe2.5-inchharddiskdrive,dothefollowing:

1.Removeallmediafromthedrivesandturnoffallattacheddevicesandthecomputer.Then,disconnect
allpowercordsfromelectricaloutletsanddisconnectallcablesthatareconnectedtothecomputer.

2.Placeasoft,cleantowelorclothonthedeskorsurface.Holdthesidesofyourcomputerandgentlylay
itdownsothatthescreenisagainstthesurfaceandthecoverisfacingup.

3.Removethecomputerstand.See“Removingandinstallingthecomputerstand”onpage71.

4.Removethecomputercover.See“Removingthecomputercover”onpage75.

5.Removethehard-disk-driveEMIshield.See“Removingandinstallingthehard-disk-driveEMIshield”
onpage76

.

80ThinkCentreE73zHardwareMaintenanceManual

6.Removethescrew1,andthenpivotthehard-disk-drivebracketwiththeharddiskdriveasshownto
removeitfromthechassis.

Figure16.Removingthehard-disk-drivebracketwiththeharddiskdrive

7.Disconnectthecablefromtheharddiskdrive.

8.Removethethreescrewsthatsecuretheharddiskdrivetothebracket,andthenremovetheharddisk
drivefromthebracket.Donottouchthecircuitboardonthebottomoftheharddiskdrive.

Figure17.Removingtheharddiskdrivefromthebracket

9.Toinstallthenewharddiskdrive,positionthenewharddiskdriveinthehard-disk-drivebracketsothat
thethreescrewholesintheharddiskdrivealignwiththecorrespondingholesinthebracket.Then,
installthethreescrewstosecuretheharddiskdrivetothebracket.

10.Connectthehard-disk-drivecabletothenewharddiskdrive.

11.Positionthebracketwiththenewharddiskdriveinthechassissothatthescrewholeinthebracket
alignswiththecorrespondingholeinthechassis.Then,installthescrewtosecurethebracketwiththe
harddiskdrivetothechassis.

Chapter9.ReplacingFRUs81

12.Installthehard-disk-driveEMIshield.See“Removingandinstallingthehard-disk-driveEMIshield”
onpage76.

Whattodonext:

•T oworkwithanotherpieceofhardware,gototheappropriatesection.

•T ocompletetheinstallationorreplacement,goto“Completingthepartsreplacement”onpage108.

Replacingtheopticaldrive

Attention:Donotopenyourcomputerorattemptanyrepairbeforereadingandunderstandingthe

“Importantsafetyinformation”onpage1

Thissectionprovidesinstructionsonhowtoreplacetheopticaldrive.

Note:Theopticaldriveisavailableonlyinsomemodels.

Toreplacetheopticaldrive,dothefollowing:

1.Removeallmediafromthedrivesandturnoffallattacheddevicesandthecomputer.Then,disconnect
allpowercordsfromelectricaloutletsanddisconnectallcablesthatareconnectedtothecomputer.

2.Placeasoft,cleantowelorclothonthedeskorotheratsurface.Holdthesidesofyourcomputerand
gentlylayitdownsothatthescreenisagainstthesurfaceandthecoverisfacingup.

3.Removethecomputercover.See“Removingthecomputercover”onpage75.

4.Locatetheopticaldrive.See“LocatingmajorFRUsandCRUs”onpage66.

5.Removethescrew1thatsecurestheopticaldrive,andthenslidetheopticaldrivetodisconnectthe
opticaldrivefromtheopticaldrivecable.Removetheopticaldrivefromtheopticaldrivebay.

Figure18.Removingtheopticaldrive

82ThinkCentreE73zHardwareMaintenanceManual

6.Toinstallanewopticaldrive,slidethenewopticaldriveintotheopticaldrivebaytoconnectthecableto
theopticaldrive.

Figure19.Installingtheopticaldrive

7.Installthescrew1tosecuretheopticaldrive.

Figure20.Installingthescrewtosecuretheopticaldrive

8.Goto“Completingthepartsreplacement”onpage108.

Removingandreinstallingthesystemboardshield

Attention:Donotopenyourcomputerorattemptanyrepairbeforereadingandunderstandingthe

“Importantsafetyinformation”onpage1

Thissectionprovidesinstructionsonhowtoremoveandreinstallthesystemboardshield.

Toremoveandreinstallthesystemboardshield,dothefollowing:

Chapter9.ReplacingFRUs83

1.Removeallmediafromthedrivesandturnoffallattacheddevicesandthecomputer.Then,disconnect
allpowercordsfromelectricaloutletsanddisconnectallcablesthatareconnectedtothecomputer.

2.Placeasoft,cleantowelorclothonthedeskorotheratsurface.Holdthesidesofyourcomputerand
gentlylayitdownsothatthescreenisagainstthesurfaceandthecoverisfacingup.

3.Removethecomputercover.See“Removingthecomputercover”onpage75.

4.Locatethesystemboardshieldinthecomputer.See“LocatingmajorFRUsandCRUs”onpage66.

5.Removethetwoscrews1thatsecuresthesystemboardshield,andthenslidethesystemboard
shieldoutofthecomputer.

Figure21.Removingthesystemboardshield

6.Toreinstallthesystemboardshield,slidethesystemboardshieldintothesystemboardshieldslotso
thatthescrewholesalignswiththatinthecomputer.

7.Reinstallthetwoscrewstosecurethesystemboardshieldtothecomputer.

8.Goto“Completingthepartsreplacement”onpage108.

ReplacingtherearI/Oassembly

Attention:Donotopenyourcomputerorattemptanyrepairbeforereadingandunderstandingthe

“Importantsafetyinformation”onpage1

ThissectionprovidesinstructionsonhowtoreplacetherearI/Oassembly.

84ThinkCentreE73zHardwareMaintenanceManual

ToreplacetherearI/Oassembly,dothefollowing:

1.Removeallmediafromthedrivesandturnoffallattacheddevicesandthecomputer.Then,disconnect
allpowercordsfromelectricaloutletsanddisconnectallcablesthatareconnectedtothecomputer.

2.Placeasoft,cleantowelorclothonthedeskorotheratsurface.Holdthesidesofyourcomputerand
gentlylayitdownsothatthescreenisagainstthesurfaceandthecoverisfacingup.

3.Removethecomputercover.See“Removingthecomputercover”onpage75.

4.Removethesystemboardshield.See“Removingandreinstallingthesystemboardshield”onpage83.

5.LocatetherearI/Oassembly.See“LocatingmajorFRUsandCRUs”onpage66.

6.Removethevescrews1thatsecuretherearI/Oassembly.RemovetherearI/Oassemblyfromthe
computer.

Figure22.Removingthepowercordconnector

Chapter9.ReplacingFRUs85

7.RemovethepowercordconnectorfromtherearI/Oassembly.

Figure23.RemovingthepowercordconnectorfromtherearI/Oassembly

8.ToreinstalltherearI/Oassembly,installthetwoscrewstosecurethepowercordconnector.Position
thenewrearI/Oassemblyintoplace,andthenalignthescrewholeswiththecorrespondingholesinthe
computermainbracket,andtheninstalltheotherthreescrewstosecuretherearI/Oassembly.

9.Reinstallthesystemboardshield.See“Removingandreinstallingthesystemboardshield”onpage83.

10.Goto“Completingthepartsreplacement”onpage108.

RemovingtheVESAmountbracket

Attention:Donotopenyourcomputerorattemptanyrepairbeforereadingandunderstandingthe

“Importantsafetyinformation”onpage1

ThissectionprovidesinstructionsonhowtoremovetheVESAmountbracket.

ToremovetheVESAmountbracket,dothefollowing:

1.Removeallmediafromthedrivesandturnoffallattacheddevicesandthecomputer.Then,disconnect
allpowercordsfromelectricaloutletsanddisconnectallcablesthatareconnectedtothecomputer.

2.Placeasoft,cleantowelorclothonthedeskorotheratsurface.Holdthesidesofyourcomputerand
gentlylayitdownsothatthescreenisagainstthesurfaceandthecoverisfacingup.

3.Removethecomputercover.See“Removingthecomputercover”onpage75.

4.LocatetheVESAmountbracket.See“LocatingmajorFRUsandCRUs”onpage66.

5.Removethesystemboardshield.See“Removingandreinstallingthesystemboardshield”onpage83.

6.RemovetherearI/Oassembly.See“ReplacingtherearI/Oassembly”onpage84.

86ThinkCentreE73zHardwareMaintenanceManual

7.Removethethreescrews1thatsecuretheVESAmountbracketandlifttheVESAmountbracket
outofthecomputer.

Figure24.RemovingtheVESAmountbracket

8.ToreinstalltheVESAmountbracket,positiontheVESAmountbracketintothecomputersothatthe
screwholesalignwiththoseinthecomputer.ReinstallthethreescrewstosecuretheVESAmount
bracket.

9.ReinstalltherearI/Oassembly.See“ReplacingtherearI/Oassembly”onpage84.

10.Reinstallthesystemboardshield.See“Removingandreinstallingthesystemboardshield”onpage83.

11.Goto“Completingthepartsreplacement”onpage108.

Replacingthepowersupply

Attention:Donotopenyourcomputerorattemptanyrepairbeforereadingandunderstandingthe

“Importantsafetyinformation”onpage1

Thissectionprovidesinstructionsonhowtoreplacethepowersupply.

Toreplacethepowersupply,dothefollowing:

1.Removeallmediafromthedrivesandturnoffallattacheddevicesandthecomputer.Then,disconnect
allpowercordsfromelectricaloutletsanddisconnectallcablesthatareconnectedtothecomputer.

2.Placeasoft,cleantowelorclothonthedeskorotheratsurface.Holdthesidesofyourcomputerand
gentlylayitdownsothatthescreenisagainstthesurfaceandthecoverisfacingup.

3.Removethecomputercover.See“Removingthecomputercover”onpage75.

Chapter9.ReplacingFRUs87

4.Removethesystemboardshield.See“Removingandreinstallingthesystemboardshield”onpage83.

5.RemovetheVESAmountbracket.See“RemovingtheVESAmountbracket”onpage86.

6.Locatethepowersupply.See“LocatingmajorFRUsandCRUs”onpage66.

7.Disconnectthepowersupplycablesfromthesystemboard.See“Locatingpartsonthesystemboard”
onpage69.

8.RemovethepowercordconnectorfromtherearI/Obracket.See“ReplacingtherearI/Oassembly”
onpage84.

9.Removethetwoscrews1thatsecurethepowersupply,andthenremovethepowersupplyfromthe
computer.

Figure25.Removingthetwoscrewsthatsecurethepowersupply

10.Toreinstallthepowersupply,reinstallthepowercordconnectortotherearI/Obracket.See“Replacing
therearI/Oassembly”onpage84

11.Positionthenewpowersupplyinthecomputerandalignthetwoscrewholesinthenewpowersupply
withthoseinthecomputermainbracket.Installthetwoscrewstosecurethenewpowersupply.

12.Routethenewpowercordconnectorcable,andthenreinstalltherearI/Oassembly.See“Replacing
therearI/Oassembly”onpage84.

13.Connectthenewpowersupplycablestothepowersupplyconnectorsonthesystemboard.See
“Locatingpartsonthesystemboard”onpage69.

14.ReinstalltheVESAmountbracket.See“RemovingtheVESAmountbracket”onpage86.

15.Reinstallthesystemboardshield.See“Removingandreinstallingthesystemboardshield”onpage83.

16.Reinstallthecomputercover.See“Removingthecomputercover”onpage75.

17.Goto“Completingthepartsreplacement”onpage108.

Replacingthemicroprocessorfan

Attention:Donotopenyourcomputerorattemptanyrepairbeforereadingandunderstandingthe

“Importantsafetyinformation”onpage1

Thissectionprovidesinstructionsonhowtoreplacethemicroprocessorfan.

88ThinkCentreE73zHardwareMaintenanceManual

Toreplacethemicroprocessorfan,dothefollowing:

1.Removeallmediafromthedrivesandturnoffallattacheddevicesandthecomputer.Then,disconnect
allpowercordsfromelectricaloutletsanddisconnectallcablesthatareconnectedtothecomputer.

2.Placeasoft,cleantowelorclothonthedeskorotheratsurface.Holdthesidesofyourcomputerand
gentlylayitdownsothatthescreenisagainstthesurfaceandthecoverisfacingup.

3.Removethecomputercover.See“Removingthecomputercover”onpage75.

4.Locatethemicroprocessorfaninthecomputer.See“LocatingmajorFRUsandCRUs”onpage66.

5.Removethemicroprocessorboardshield.See“Removingandreinstallingthesystemboardshield”
onpage83.

6.RemovetherearI/Oassembly.See“ReplacingtherearI/Oassembly”onpage84.

7.RemovetheVESAmountbracket.See“RemovingtheVESAmountbracket”onpage86.

8.Notetheroutingofthemicroprocessorfancable,andthendisconnectthemicroprocessorfancable
fromthesystemboard.See“Locatingpartsonthesystemboard”onpage69.

9.Removethetwoscrews1thatsecurethemicroprocessorfantothemainbracket.Then,liftthe
microprocessorfanoffthemainbracket.

Figure26.Removingthemicroprocessorfan

10.Toreinstallthemicroprocessorfan,positionthenewmicroprocessorfanonthemainbracketandalign
thescrewholesinthenewmicroprocessorfanwiththoseinthemainbracket.Reinstallthetwoscrews
thatsecurethemicroprocessorfantothemainbracket.

11.Connectthenewmicroprocessorfancabletothesystemboard.See“Locatingpartsonthesystem
board”onpage69.

12.ReinstalltheVESAmountbracket.See“RemovingtheVESAmountbracket”onpage86.

13.ReinstalltherearI/Oassembly.See“ReplacingtherearI/Oassembly”onpage84.

14.Reinstallthesystemboardshield.See“Removingandreinstallingthesystemboardshield”onpage83.

15.Reinstallthecomputercover.See“Removingthecomputercover”onpage75.

16.Goto“Completingthepartsreplacement”onpage108.

Chapter9.ReplacingFRUs89

Replacingtheheatsinkassembly

Attention:Donotopenyourcomputerorattemptanyrepairbeforereadingandunderstandingthe

“Importantsafetyinformation”onpage1

Thissectionprovidesinstructionsonhowtoreplacetheheatsinkassembly.

CAUTION:

Theheatsinkandfanassemblymightbeveryhot.Turnoffthecomputerandwaitthreetove
minutestoletthecomputercoolbeforeremovingthecomputercover.

Toreplacetheheatsinkassembly,dothefollowing:

1.Removeallmediafromthedrivesandturnoffallattacheddevicesandthecomputer.Then,disconnect
allpowercordsfromelectricaloutletsanddisconnectallcablesthatareconnectedtothecomputer.

2.Placeasoft,cleantowelorclothonthedeskorotheratsurface.Holdthesidesofyourcomputerand
gentlylayitdownsothatthescreenisagainstthesurfaceandthecoverisfacingup.

3.Removethecomputercover.See“Removingthecomputercover”onpage75.

4.Locatetheheatsinkassemblyonthesystemboard.See“LocatingmajorFRUsandCRUs”onpage66.

5.Removethesystemboardshield.See“Removingandreinstallingthesystemboardshield”onpage83.

90ThinkCentreE73zHardwareMaintenanceManual

6.Followthesequence1,2,3,4ontheheatsinkassemblytoloosethefourscrewsthatsecurethe
heatsinkassemblytothesystemboard.Removethescrew5thatsecuretheheatsinkassembly
tothecomputer.

Note:Carefullyloosethefourscrewsfromthesystemboardtoavoidanypossibledamagetothe
systemboard.Thefourscrewscannotberemovedfromtheheatsinkassembly.

Figure27.Loosingthefourscrewsthatsecuretheheatsinkassemblytothesystemboard

7.Liftthefailingheatsinkassemblyoffthesystemboard.

Notes:

a.Youmighthavetogentlytwisttheheatsinkassemblytofreeitfromthemicroprocessor.
b.Donottouchthethermalgreasewhilehandlingtheheatsinkassembly.

8.Toreinstalltheheatsinkassembly,positionthenewheatsinkassemblyonthesystemboardsothatthe
fourscrewsarealignedwiththecorrespondingholesinthesystemboard.

9.Followthesequence1,2,3,4ontheheatsinkassemblytotightenthefourscrewstosecurethe
heatsinkassemblytothesystemboard,asshowninFigure27“Loosingthefourscrewsthatsecure
theheatsinkassemblytothesystemboard”onpage91.Installthescrew5tosecuretheheatsink
assemblytothecomputer.

10.Reinstallthesystemboardshield.See“Removingandreinstallingthesystemboardshield”onpage83.

11.Goto“Completingthepartsreplacement”onpage108.

Replacingthemicroprocessor

Attention:Donotopenyourcomputerorattemptanyrepairbeforereadingandunderstandingthe

“Importantsafetyinformation”onpage1

Chapter9.ReplacingFRUs91

Thissectionprovidesinstructionsonhowtoreplacethemicroprocessor.

CAUTION:

Theheatsinkandfanassemblymightbeveryhot.Turnoffthecomputerandwaitthreetove
minutestoletthecomputercoolbeforeremovingthecomputercover.

Toreplacethemicroprocessor,dothefollowing:

1.Removeallmediafromthedrivesandturnoffallattacheddevicesandthecomputer.Then,disconnect
allpowercordsfromelectricaloutletsanddisconnectallcablesthatareconnectedtothecomputer.

2.Placeasoft,cleantowelorclothonthedeskorotheratsurface.Holdthesidesofyourcomputerand
gentlylayitdownsothatthescreenisagainstthesurfaceandthecoverisfacingup.

3.Removethecomputercover.See“Removingthecomputercover”onpage75.

4.Locatethemicroprocessoronthesystemboard.See“LocatingmajorFRUsandCRUs”onpage66.

5.Removethesystemboardshield.See“Removingandreinstallingthesystemboardshield”onpage83.

6.Removetheheatsinkassemblytogainaccesstothemicroprocessor.See“Replacingtheheatsink
assembly”onpage90

.

7.Pressthesmallhandle1toopentheretainer2toaccessthemicroprocessor3.

Figure28.Openingtheretainertoaccessthemicroprocessor

92ThinkCentreE73zHardwareMaintenanceManual

8.Liftthemicroprocessorstraightupandoutofthesocket.

Notes:

a.Yourmicroprocessorandsocketmightlookdifferentfromtheoneillustrated.
b.Notetheorientationofthemicroprocessorinthesocket.Youcaneitherlookforthesmalltriangle1

ononecornerofthemicroprocessorornotetheorientationofthenotches2onthemicroprocessor.
Thisisimportantwheninstallinganewmicroprocessoronthesystemboard.

Figure29.Notingtheorientationofthemicroprocessorinthesocket

c.Touchonlythesidesofthemicroprocessor.Donottouchthegoldcontactsonthebottom.
d.Donotdropanythingontothemicroprocessorsocketwhileitisexposed.Thesocketpinsmustbe

keptascleanaspossible.

Figure30.Removingthemicroprocessor

9.Makesurethatthesmallhandleisintheraisedpositionandthemicroprocessorretainerisfullyopen.

10.Holdthenewmicroprocessorandalignthenotches2onitwiththealignmentkeysinthe
microprocessorsocket,oralignthesmalltriangle

1ononecornerofthenewmicroprocessorwiththe

correspondingbeveledcornerofthemicroprocessorsocket.

Chapter9.ReplacingFRUs93

Figure31.Installingthemicroprocessor

11.Lowerthenewmicroprocessorstraightdownintothemicroprocessorsocketonthesystemboard.

12.Closethemicroprocessorretainerandlockitintopositionwiththesmallhandletosecurethenew
microprocessorinthesocket.

13.Reinstalltheheatsinkassembly.See“Replacingtheheatsinkassembly”onpage90.

14.Reinstallthesystemboardshield.See“Removingandreinstallingthesystemboardshield”onpage83.

15.Goto“Completingthepartsreplacement”onpage108.

Replacingthecardreader

Attention:Donotopenyourcomputerorattemptanyrepairbeforereadingandunderstandingthe

“Importantsafetyinformation”onpage1

Thissectionprovidesinstructionsonhowtoreplacethecardreader.

Note:Thecardreaderisavailableonlyinsomemodels.

Toreplacethecardreader,dothefollowing:

1.Removeallmediafromthedrivesandturnoffallattacheddevicesandthecomputer.Then,disconnect
allpowercordsfromelectricaloutletsanddisconnectallcablesthatareconnectedtothecomputer.

2.Placeasoft,cleantowelorclothonthedeskorotheratsurface.Holdthesidesofyourcomputerand
gentlylayitdownsothatthescreenisagainstthesurfaceandthecoverisfacingup.

3.Removethecomputercover.See“Removingthecomputercover”onpage75.

4.Locatethecardreaderinthecomputer.See“LocatingmajorFRUsandCRUs”onpage66.

5.Removethesystemboardshield.See“Removingandreinstallingthesystemboardshield”onpage83.

6.Disconnectthecardreadercablefromthecardreader.

94ThinkCentreE73zHardwareMaintenanceManual

7.Removethetwoscrews1thatsecurethecardreader,andthenliftthecardreaderoutofthecomputer.

Figure32.Removingthecardreader

8.Toreinstallthecardreader,alignthescrewholesinthenewcardreaderwiththoseinthecomputer,and
theninstallthetwoscrewstosecurethecardreader.

9.Connectthecardreadercabletothenewcardreader.

10.Reinstallthesystemboardshield.See“Removingandreinstallingthesystemboardshield”onpage83.

11.Goto“Completingthepartsreplacement”onpage108.

Replacingthebattery

Attention:Donotopenyourcomputerorattemptanyrepairbeforereadingandunderstandingthe

“Importantsafetyinformation”onpage1

Thissectionprovidesinstructionsonhowtoreplacethebattery.

Yourcomputerhasaspecialtypeofmemorythatmaintainsthedate,time,andsettingsforbuilt-infeatures,
suchasparallel-portassignments(conguration).Abatterykeepstheinformationactivewhenyouturn
offthecomputer.

Thebatterynormallyrequiresnochargingormaintenancethroughoutitslife.However,ifthebatteryfails,
thedate,time,andcongurationinformation(includingpasswords)arelost.Anerrormessagewillbe
displayedwhenyouturnonthecomputer.

Referto“Lithiumbatterynotice”intheThinkCentreSafety,Warranty,andSetupGuideforinformationabout
replacinganddisposingofthebattery.

Toreplacethebattery,dothefollowing:

1.Removeallmediafromthedrivesandturnoffallattacheddevicesandthecomputer.Then,disconnect
allpowercordsfromelectricaloutletsanddisconnectallcablesthatareconnectedtothecomputer.

Chapter9.ReplacingFRUs95

2.Placeasoft,cleantowelorclothonthedeskorotheratsurface.Holdthesidesofyourcomputerand
gentlylayitdownsothatthescreenisagainstthesurfaceandthecoverisfacingup.

3.Removethecomputercover.See“Removingthecomputercover”onpage75.

4.Locatethebatteryonthesystemboard.See“LocatingmajorFRUsandCRUs”onpage66.

5.Removethesystemboardshieldoropenthesystemboardshieldwindowtogetaccesstothebattery.
See“Removingandreinstallingthesystemboardshield”onpage83

6.Removethebattery.

Figure33.Removingthebattery

7.Installanewbattery.

.

Figure34.Installinganewbattery

8.Reinstallthesystemboardshieldorclosethesystemboardshieldwindow.See“Removingand
reinstallingthesystemboardshield”onpage83.

9.Reinstallthecomputercover.See“Completingthepartsreplacement”onpage108.

10.Turnonthecomputerandallattacheddevices.

Note:Whenyouturnonthecomputerforthersttimeafterreplacingthebattery,anerrormessage
mightbedisplayed.Thisisnormalafterreplacingthebattery.

11.UsetheSetupUtilityprogramtosetthedate,time,andanypasswords.SeeChapter6“UsingtheSetup
Utilityprogram”onpage55.

Replacingtheconverterboard

Attention:Donotopenyourcomputerorattemptanyrepairbeforereadingandunderstandingthe

“Importantsafetyinformation”onpage1

Thissectionprovidesinstructionsonhowtoreplacetheconverterboard.

Toreplacetheconverterboard,dothefollowing:

1.Removeallmediafromthedrivesandturnoffallattacheddevicesandthecomputer.Then,disconnect
allpowercordsfromelectricaloutletsanddisconnectallcablesthatareconnectedtothecomputer.

2.Placeasoft,cleantowelorclothonthedeskorsurface.Holdthesidesofyourcomputerandgentlylay
itdownsothatthescreenisagainstthesurfaceandthecoverisfacingup.

96ThinkCentreE73zHardwareMaintenanceManual