Lenovo ThinkCentre E73z Hardware Maintenance Manual [ko]

ThinkCentreE73z
HardwareMaintenanceManual

MachineTypes:10BDand10BL

Note:Beforeusingthisinformationandtheproductitsupports,besuretoreadthegeneralinformation

underAppendixA“Notices”onpage117.

FourthEdition(October2014)
©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

Specifications...............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.........53

UEFIdiagnosticprogram.........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

EnablingErPLPScompliancemode......58

ChangingtheBIOSsettingsbeforeinstallinganew

operatingsystem..............59

ExitingtheSetupUtilityprogram.......59

Chapter7.Symptom-to-FRUIndex..61

Harddiskdrivebooterror..........61

Powersupplyproblems...........61

Beepsymptoms..............61

POSTerrorcodes.............62

Miscellaneouserrorconditions........63

Undeterminedproblems...........65

Chapter8.Locations.........67

Locatingconnectors,controls,andindicatorson

thefrontofyourcomputer..........67

Locatingconnectorsontherearofyour

computer.................68

LocatingmajorFRUsandCRUs........68

LookingupFRUinformation.........71

Locatingpartsonthesystemboard......71

Chapter9.ReplacingFRUs......73

Removingandinstallingthecomputerstand...73

Removingandreinstallingtheframestand..73

Removingandinstallingthemonitorstand..75

Removingthecomputercover........76

Removingandreinstallingthefeetstand....77

Removingandinstallingthehard-disk-driveEMI

shield..................78

©CopyrightLenovo2013,2014

i

Replacingthe3.5-inchharddiskdriveorhybrid

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

Replacingthe2.5-inchsolid-statedriveorhybrid

harddiskdrive...............82

Replacingtheopticaldrive..........84

Removingandreinstallingthesystemboard

shield..................85

ReplacingtherearI/Oassembly........86

RemovingtheVESAmountbracket......88

Replacingthepowersupply.........89

Replacingthemicroprocessorfan.......90

Replacingtheheatsinkassembly.......92

Replacingthemicroprocessor........93

Replacingthecardreader..........96

Replacingthebattery............97

Replacingtheconverterboard........98

Installingorreplacingamemorymodule....99

Replacingtheinternalspeakers........101

Replacingtheintegratedcamera.......102

Replacingthesystemboard.........103

ReplacingtheLCDpanel...........105

ReplacingtheWi-Ficard...........109

Completingthepartsreplacement.......111

Securityfeatures..............113

Hardwarecontrolledpasswords......113

Operatingsystempassword.......113

Vitalproductdata............113

BIOSlevels................113

Flashupdateprocedures..........113

Updating(flashing)theBIOSfromadisc...114

Updating(flashing)theBIOSfromyour

operatingsystem............115

RecoveringfromaPOST/BIOSupdate

failure................115

Powermanagement............116

Automaticconfigurationandpowerinterface

(ACPI)BIOS..............116

AutomaticPower-onfeatures.......116

AppendixA.Notices.........117

Televisionoutputnotice...........118

EuropeanconformanceCEmark.......118

Trademarks................118

Index.................119

Chapter10.Additionalservice

information.............113

iiThinkCentreE73zHardwareMaintenanceManual

Chapter1.Aboutthismanual

ThismanualprovidesserviceandreferenceinformationforThinkCentre®computerslistedonthefrontcover.

Chapter7“Symptom-to-FRUIndex”onpage61

arenotspecifictoanymachinetypeandareapplicabletoallThinkCentrecomputers.

113

FormajorFieldReplaceableUnits(FRU)locationsandCustomerReplaceableUnit(CRU)identification,
seeChapter8“Locations”onpage67.

ForFRUreplacementinstructions,seeChapter9“ReplacingFRUs”onpage73

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

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

andChapter10“Additionalserviceinformation”onpage

.

Importantsafetyinformation

Besuretoreadallcautionanddangerstatementsinthisbookbeforeperforminganyoftheinstructions.

VeuillezliretouteslesconsignesdetypeDANGERetATTENTIONduprésentdocumentavantd'exécuter
lesinstructions.

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

LeggereleistruzioniintrodottedaATTENZIONEePERICOLOpresentinelmanualeprimadieseguireuna
qualsiasidelleistruzioni

Certifique-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
intheinstallationandconfigurationprocedures.

©CopyrightLenovo2013,2014

3

Observethefollowingruleswhenworkingonelectricalequipment.

Important:Useonlyapprovedtoolsandtestequipment.Somehandtoolshavehandlescoveredwithasoft
materialthatdoesnotinsulateyouwhenworkingwithliveelectricalcurrents.Manycustomershave,near
theirequipment,rubberfloormatsthatcontainsmallconductivefiberstodecreaseelectrostaticdischarges.
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

metalfloorstripsandmachineframes.

Observethespecialsafetyprecautionswhenyouworkwithveryhighvoltages;theseinstructionsarein
thesafetysectionsofmaintenanceinformation.Useextremecarewhenmeasuringhighvoltages.

•Regularlyinspectandmaintainyourelectricalhandtoolsforsafeoperationalcondition.

•Donotusewornorbrokentoolsandtesters.

•Neverassumethatpowerhasbeendisconnectedfromacircuit.First,checkthatithasbeenpowered-off.

•Alwayslookcarefullyforpossiblehazardsinyourworkarea.Examplesofthesehazardsaremoistfloors,
nongroundedpowerextensioncables,powersurges,andmissingsafetygrounds.

•Donottouchliveelectricalcircuitswiththereflectivesurfaceofaplasticdentalmirror.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
whetheryoucancontinuewithoutfirstcorrectingtheproblem.

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.Thepowercordshouldbetheappropriatetypeasspecifiedinthepartslistings.
c.Insulationmustnotbefrayedorworn.

4.Removethecover.

5.Checkforanyobviousalterations.Usegoodjudgmentastothesafetyofanyalterations.

6.Checkinsidetheunitforanyobviousunsafeconditions,suchasmetalfilings,contamination,wateror
otherliquids,orsignsoffireorsmokedamage.

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-specificESDprocedureswhentheyexceedtherequirementsnotedhere.

2.MakesurethattheESDprotectivedevicesyouusehavebeencertified(ISO9000)asfullyeffective.

WhenhandlingESD-sensitiveparts:

•Keepthepartsinprotectivepackagesuntiltheyareinsertedintotheproduct.

Chapter2.Safetyinformation5

•Avoidcontactwithotherpeoplewhilehandlingthepart.

•Wearagroundedwriststrapagainstyourskintoeliminatestaticonyourbody.

•Preventthepartfromtouchingyourclothing.Mostclothingisinsulativeandretainsachargeeven
whenyouarewearingawriststrap.

•Usetheblacksideofagroundedworkmattoprovideastatic-freeworksurface.Thematisespecially
usefulwhenhandlingESD-sensitivedevices.

•Selectagroundingsystem,suchasthoselistedbelow,toprovideprotectionthatmeetsthespecific
servicerequirement.

Note:TheuseofagroundingsystemisdesirablebutnotrequiredtoprotectagainstESDdamage.
–AttachtheESDgroundcliptoanyframeground,groundbraid,orgreen-wireground.

–UseanESDcommongroundorreferencepointwhenworkingonadouble-insulatedor

battery-operatedsystem.Y oucanusecoaxorconnector-outsideshellsonthesesystems.

–Usetheroundground-prongoftheacplugonac-operatedcomputers.

Groundingrequirements

Electricalgroundingofthecomputerisrequiredforoperatorsafetyandcorrectsystemfunction.Proper
groundingoftheelectricaloutletcanbeverifiedbyacertifiedelectrician.

Safetynotices(multi-lingualtranslations)

Thecautionanddangersafetynoticesinthissectionareprovidedinthefollowinglanguages:

•English

•Arabic

•Brazilian/Portuguese

•Chinese(simplified)

•Chinese(traditional)

•French

•German

•Hebrew

•Italian

•Korean

•Spanish

DANGER

Electricalcurrentfrompower,telephoneandcommunicationcablesishazardous.

Toavoidashockhazard:

•Donotconnectordisconnectanycablesorperforminstallation,maintenance,orreconfiguration
ofthisproductduringanelectricalstorm.

6ThinkCentreE73zHardwareMaintenanceManual

•Connectallpowercordstoaproperlywiredandgroundedelectricaloutlet.

•Connecttoproperlywiredoutletsanyequipmentthatwillbeattachedtothisproduct.

•Whenpossible,useonehandonlytoconnectordisconnectsignalcables.

•Neverturnonanyequipmentwhenthereisevidenceoffire,water,orstructuraldamage.

•Disconnecttheattachedpowercords,telecommunicationssystems,networks,andmodems

beforeyouopenthedevicecovers,unlessinstructedotherwiseintheinstallationandconfiguration
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,fiberopticdevices,ortransmitters)are
installed,notethefollowing:

•Donotremovethecovers.Removingthecoversofthelaserproductcouldresultinexposureto
hazardouslaserradiation.Therearenoserviceablepartsinsidethedevice.

•Useofcontrolsoradjustmentsorperformanceofproceduresotherthanthosespecifiedherein
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,manutençãooureconfiguração
desteprodutoduranteumatempestadecomraios.

•Conectetodososcabosdealimentaçãoatomadaselétricascorretamenteinstaladaseaterradas.

•T odoequipamentoqueforconectadoaesteprodutodeveserconectadoatomadascorretamente
instaladas.

•Quandopossível,utilizeapenasumadasmãosparaconectaroudesconectarcabosdesinal.

•Nuncaliguenenhumequipamentoquandohouverevidênciadefogo,águaoudanosestruturais.

•Antesdeabrirtampasdedispositivos,desconectecabosdealimentação,sistemasdetelecomunicação,
redesemodemsconectados,amenosqueespecificadodemaneiradiferentenosprocedimentosde
instalaçãoeconfiguração.

•Conecteedesconecteoscabosconformedescritonatabelaapresentadaaseguiraoinstalar,moverou
abrirtampasdesteprodutooudedispositivosconectados.

ParaConectar:ParaDesconectar:

1.DESLIGUETudo.

2.Primeiramente,conectetodososcabosaos
dispositivos.

3.Conecteoscabosdesinalaosconectores.

4.Conecteoscabosdealimentaçãoàstomadas.

5.LIGUEosdispositivos.

1.DESLIGUETudo.

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,dispositivosdefibraótica
outransmissores)estivereminstalados,observeoseguinte:

•Nãoremovaastampas.Aremoçãodastampasdeumprodutoalaserpoderesultaremexposição
prejudicialàradiaçãodelaser.Nãoexistempeçasquepodemserconsertadasnointeriordodispositivo.

Chapter2.Safetyinformation11

•Autilizaçãodecontrolesouajustesouaexecuçãodeprocedimentosdiferentesdosespecificadosaqui

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'entretienoudereconfiguration
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'installationetdeconfiguration).

•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),ousuivrelesinstructionsdufabricantquiendéfinitleséquivalences.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,desunitésàfibresoptiques,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
deregarderfixementlefaisceauoudel'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-oderRekonfigurationsarbeitendurchführen.

•GerätnuraneineSchutzkontaktsteckdosemitordnungsgemäßgeerdetemSchutzkontakt

anschließen.

•AlleangeschlossenenGeräteebenfallsanSchutzkontaktsteckdosenmitordnungsgemäß

geerdetemSchutzkontaktanschließen.

•DieSignalkabelnachMöglichkeiteinhändiganschließenoderlösen,umeinenStromschlagdurch

BerührenvonOberflächenmitunterschiedlichemelektrischemPotenzialzuvermeiden.

•Geräteniemalseinschalten,wennHinweiseaufFeuer,WasseroderGebäudeschädenvorliegen.

•DieVerbindungzudenangeschlossenenNetzkabeln,Telekommunikationssystemen,Netzwerken

undModemsistvordemÖffnendesGehäuseszuunterbrechen,sofernindenInstallations-und
KonfigurationsprozedurenkeineanderslautendenAnweisungenenthaltensind.

•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

riconfigurazionedelprodottoduranteuntemporale.

•Collegaretuttiifilielettriciaunapresadialimentazionecorrettamentecablataedotatadimessaa

terra.

•Collegareallepreseelettricheappropriatetutteleapparecchiaturecheverrannoutilizzateper

questoprodotto.

•Sepossibile,utilizzaresolounamanopercollegareoscollegareicavidisegnale.

•Nonaccendereassolutamenteapparecchiatureinpresenzadiincendi,perdited'acquaodanno

strutturale.

•Scollegareicavidialimentazione,isistemiditelecomunicazione,leretieilmodemprimadi

aprireicoperchideldispositivo,salvoistruzionicontrarierelativealleprocedurediinstallazionee
configurazione.

•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,unitàafibreotticheo
trasmittenti),tenerpresentequantosegue:

•Nonrimuovereglisportelli.L'aperturadiun'unitàlaserpuòdeterminarel'esposizionearadiazioni

laserpericolose.All'internodell'unitànonvisonopartisucuieffettuarel'assistenzatecnica.

•L'utilizzodicontrolli,regolazioniol'esecuzionediprocedurenondescrittinelpresentemanuale

possonoprovocarel'esposizionearadiazionipericolose.

PERICOLO

AlcuneunitàlasercontengonoundiodolaserdiClasse3AoClasse3B.Tenerpresentequantosegue:

Aprendol'unitàvengonoemesseradiazionilaser.Nonfissareilfascio,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

reconfiguracióndeesteproductoduranteunatormentaeléctrica.

•Conectetodosloscablesdealimentaciónatomasdecorrientedebidamentecableadasy

conectadasatierra.

•Cualquierequipoqueseconecteaesteproductotambiéndebeconectarseatomasdecorriente

debidamentecableadas.

•Siemprequeseaposible,utiliceunasolamanoparaconectarodesconectarloscablesdeseñal.

Chapter2.Safetyinformation25

•Noenciendanuncaunequipocuandohayseñalesdefuego,aguaodañosestructurales.

•Desconecteloscablesdealimentación,lossistemasdetelecomunicaciones,lasredesylos

módemsconectadosantesdeabrirlascubiertasdelosdispositivos,amenosqueseindiquelo
contrarioenlosprocedimientosdeinstalaciónyconfiguración.

•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

Deshágasedelabateríasegúnespecifiquenlasleyesonormaslocales.

PRECAUCIÓN:

Cuandohayaproductosláser(comounidadesdeCD-ROM,unidadesdeDVD,dispositivosdefibra
ópticaotransmisores)instalados,tengaencuentalosiguiente:

•Noquitelascubiertas.Siquitalascubiertasdelproductoláser,podríaquedarexpuestoaradiación

láserpeligrosa.Dentrodeldispositivonoexisteningunapiezaquerequieraserviciotécnico.

•Siusacontrolesoajustesorealizaprocedimientosquenoseanlosespecificadosaquí,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.

Specifications

Thissectionliststhephysicalspecificationsforyourcomputer.

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:50/60Hz

–Highrange:

Minimum:200Vac
Maximum:240Vac
Inputfrequencyrange:50/60Hz

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

YoucanaccessLenovoprogramsontheWindows7operatingsystemthroughWindowsSearchorfrom
ControlPanel.TheiconnamedisplayedinthesearchresultorControlPanelmightbedifferentfromthe
programname.Y oucanfindtheprogrambyitsprogramnameoriconnameasshownintheLenovo
programsavailableontheWindows7operatingsystemtable.

Note:Ifyoudonotfindtheprogramyouneed,opentheLenovoThinkVantageprogramtofindthedimmed
iconfortheprogram.Thendouble-clicktheicontoinstalltheprogram.

ToaccessLenovoprogramsthroughWindowsSearch,dothefollowing:

1.ClicktheStartbuttonandthentypetheprogramnameortheiconnameintothesearchbox.

2.Locatetheprogrambytheprogramnameortheiconnameandthenclicktheprogramtolaunchit.

ToaccessLenovoprogramsfromControlPanel,dothefollowing:

Note:SomeLenovoprogramsmightnotbedisplayedinControlPanel.Tofindtheseprograms,use

WindowsSearch.

1.ClickStart➙ControlPanel.ChangetheviewofControlPanelfromCategorytoLargeiconsorSmall
icons.

2.Locatetheprogrambytheiconnameandthenclicktheprogramtolaunchit.

ThefollowingtableliststheprogramsavailableontheWindows7operatingsystem.

Note:Dependingonyourcomputermodel,someoftheLenovoprogramsmightnotbeavailable.

Table2.LenovoprogramsavailableontheWindows7operatingsystem

ProgramnameIconname

CommunicationsUtilityLenovo-WebConferencing
FingerprintManagerProor

ThinkVantageFingerprintSoftware
LenovoBluetoothLockLenovoBluetoothLock
LenovoReachLenovoReach
LenovoSHAREitLenovoSHAREit
LenovoSolutionCenterLenovo-SystemHealthandDiagnostics
LenovoThinkVantageToolsLenovoThinkvantageTools
PasswordManagerLenovo-PasswordVault
PCCloudManagerPCCloudManager
PowerManager
RecoveryMedia
RescueandRecovery
SystemUpdate
ViewManagementUtilityLenovo-ViewManagementUtility

®

Lenovo-FingerprintManagerProorLenovo-FingerprintReader

Lenovo-PowerControls
Lenovo-FactoryRecoveryDisksorCreateRecoveryMedia
Lenovo-EnhancedBackupandRestore
Lenovo-UpdateandDrivers

30ThinkCentreE73zHardwareMaintenanceManual

AccessingLenovoprogramsontheWindows8orWindows8.1operating system

•OntheWindows8operatingsystem,presstheWindowskeytogototheStartscreen.ClickaLenovo
programtolaunchit.Ifyoucannotfindtheprogramyouneed,movethepointertothebottom-rightcorner
ofthescreentodisplaythecharms.ThenclicktheSearchcharmtosearchforthedesiredprogram.

•OntheWindows8.1operatingsystem,presstheWindowskey
Lenovoprogramtolaunchit.Ifyoucannotfindtheprogramyouneed,clickthearrowiconinthe

bottom-leftcornerofthescreentogototheAppsscreen.Findthedesiredprogramintheappslistor
searchforitinthesearchboxinthetop-rightcornerofthescreen.

YourcomputermightsupportthefollowingLenovoprograms:

Note:Dependingonyourcomputermodel,someoftheprogramsmightnotbeavailable.

•Companion

•FingerprintManagerProorThinkVantageFingerprintSoftware

•LenovoBluetoothLock(Windows8.1only)

•LenovoReach

•LenovoSettings

•LenovoSHAREit

•LenovoSolutionCenter

•LenovoTools

•PasswordManager

•PCCloudManager(Windows8.1only)

•PowerManager

•SystemUpdate

togototheStartscreen.Clicka

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.

Generalerrormessagesappearifaproblemorconflictisfoundbyanapplicationprogram,theoperating
system,orboth.Foranexplanationofthesemessages,refertotheinformationsuppliedwiththatsoftware
package.

BeforereplacinganyFRUs,ensurethatthelatestlevelofBIOSisinstalledonthesystem.Adown-levelBIOS
mightcausefalseerrorsandunnecessaryreplacementofthesystemboard.Formoreinformationonhowto
determineandobtainthelatestlevelBIOS,see“BIOSlevels”onpage113

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”onpage61.

•IfthecomputerdisplaysaPOSTerror,goto“POSTerrorcodes”onpage62.

•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

–Hasthisconfigurationeverworked?
–Ifithasbeenworking,whatchangesweremadepriortoitfailing?
–Isthistheoriginalreportedfailure?

•Diagnosticsversion
–T ypeandversionlevel

•Hardwareconfiguration
–Print(printscreen)configurationcurrentlyinuse

–BIOSlevel

•Operatingsystemsoftware
–T ypeandversionlevel

Notes:Toeliminateconfusion,identicalsystemsareconsideredidenticalonlyifthey:

1.Aretheexactmachinetypeandmodels

2.HavethesameBIOSlevel

3.Havethesameadapters/attachmentsinthesamelocations

4.Havethesameaddressjumpers/terminators/cabling

5.Havethesamesoftwareversionsandlevels

6.HavethesameDiagnosticDiskettes(version)

7.Havethesameconfigurationoptionssetinthesystem

8.Havethesamesetupfortheoperatingsystemcontrolfiles

Comparingtheconfigurationandsoftwareset-upbetween“workingandnon-working”systemswilloften
leadtoproblemresolution.

34ThinkCentreE73zHardwareMaintenanceManual

Chapter5.Troubleshootinganddiagnostics

Thischapterprovidesinformationaboutdiagnosingandtroubleshootingcomputerproblems.Ifyour
computerproblemisnotdescribedhere,see“LenovoSupportWebsite”onpage31foradditional
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”onpage43forfurtherinformation.

©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.Tryusingapreviouslycapturedconfigurationtoseeifarecentchangetohardwareorsoftwaresettings
hascausedaproblem.Beforerestoringapreviousconfiguration,captureyourcurrentconfigurationin
casetheolderconfigurationsettingsdonotsolvetheproblemorhaveadverseaffects.Torestorea
capturedconfiguration,dothefollowing:

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

Protection➙SystemRestore.

36ThinkCentreE73zHardwareMaintenanceManual

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

Ifthisdoesnotcorrecttheproblem,continuewiththenextstep.

6.Runthediagnosticprogram.See“LenovoSolutionCenter”onpage53formoreinformation.

•Ifthediagnosticprogramdetectsahardwarefailure,contacttheLenovoCustomerSupportCenter.
See“LenovoSupportWebsite”onpage31

•Ifyouareunabletorunthediagnosticprogram,contacttheLenovoCustomerSupportCenter.See
“LenovoSupportWebsite”onpage31formoreinformation.

•Ifthediagnosticprogramdoesnotdetectahardwarefailure,continuewiththenextstep.

7.Useanantivirusprogramtoseeifyourcomputerhasbeeninfectedbyavirus.Iftheprogramdetectsa
virus,removethevirus.

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

formoreinformation.

Troubleshooting

Usethetroubleshootinginformationtofindsolutionstoproblemsthathavedefinitesymptoms.

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.

•ClickthespeakericonintheWindowsdesktopnotificationarea.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
beconfiguredtouseSoundBlasterProorSoundBlasteremulation.

•Verifythattheaudiodevicedriversarecorrectlyinstalled.SeeMicrosoftWindowshelpsystemfor
moreinformation.

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

.

AnaudiodiscorAutoPlay-enableddiscdoesnotautomaticallyplaywhenitis
insertedintoadrive

Symptom:AnaudiodiscorAutoPlay-enableddiscdoesnotautomaticallyplaywhenitisinsertedintoadrive

Action:See“CDproblems”onpage39.

Soundcomesfromoneexternalspeakeronly

Symptom:Soundcomesfromoneexternalspeakeronly.

Actions:

•Ensurethatthespeakercableisinsertedcompletelyintotheconnectoronthecomputer.

•Ensurethatthecablethatattachestheleftspeakertotherightspeakerissecurelyconnected.

•Right-clickthespeakericonintheWindowsdesktopnotificationarea,andthenclickPlaybackdevices.
ClickthePlaybacktab,selectSpeakers,andthenclickProperties.ClickBalanceontheLevelstab,
andverifythattheBalancesettingissetcorrectly.

38ThinkCentreE73zHardwareMaintenanceManual

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

.

NoaudioinDOSapplicationsorgames

Symptom:NoaudioinDOSapplicationsorgames

Actions:

•EnsurethattheDOSapplicationorgameisconfiguredtouseSoundBlasterProorSoundBlaster
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.Toremovedustorfingerprints,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”onpage58forinformationonviewingand
changingthestartupsequence.Notethatonsomemodelsthestartupsequenceispermanentlysetand
cannotbechanged.

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

.

DVDproblems

Selectyoursymptomfromthefollowinglist:

•“BlackscreeninsteadofDVDvideo”onpage40

•“DVDmoviewillnotplay”onpage40

•“NoaudioorintermittentaudiowhileplayingDVDmovie”onpage40

•“Playbackisverysloworchoppy”onpage41

•“Invaliddiscornodiscfoundmessage”onpage41

BlackscreeninsteadofDVDvideo

Symptom:BlackscreeninsteadofDVDvideo

Actions:

•RestarttheDVDplayerprogram.

•Closeanyopenfiles,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:Aproblemoccursonlyoccasionallyandisdifficulttorepeat.

Actions:

•Verifythatallcablesandcordsaresecurelyconnectedtothecomputerandattacheddevices.

•Verifythatwhenthecomputerison,thefangrillisnotblocked(thereisairflowaroundthegrill),andthe
fansareworking.Ifairflowisblockedorthefansarenotworking,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.

•Ensurethatyourcomputerisconfiguredcorrectlytosupporttheharddiskdrives.
–IfyourcomputerisinstalledwithfiveSATAharddiskdrives,ensurethattheSATAharddiskdrive

enablementmodule(onetofiveharddiskdrives)isinstalled.

–IfyourcomputerisinstalledwithSASharddiskdrives,ensurethattheSASharddiskdriveenablement

module(onetofiveharddiskdrives)ortheLSIMegaRAIDSASadapterisinstalled.

Iftheseactionsdonotcorrecttheproblem,runthediagnosticprogramLenovoSolutionCenter.See“Lenovo
SolutionCenter”onpage53

.Ifyouneedtechnicalassistance,see“LenovoSupportWebsite”onpage31.

“NoOperatingSystemFound”messageorthesystemnotstartingfromthecorrect
harddiskdrive

Symptom:"NoOperatingSystemFound"messageorthesystemnotstartingfromthecorrectharddiskdrive

Actions:

•Ensurethatallharddiskdrivesignalcablesandpowercablesareconnectedcorrectly.

•EnsurethattheharddiskdriveyourcomputerstartsfromislistedasthefirststartupdeviceintheSetup
Utilityprogram.Referto“Selectingastartupdevice”onpage57.

Note:Inrarecases,theharddiskdrivewiththeoperatingsystemmightgetcorruptedordamaged.Insuch
cases,youmightneedtoreplacetheharddiskdrive.Referto“Replacingthe2.5-inchsolid-statedriveor
hybridharddiskdrive”onpage82
onpage80.

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

and“Replacingthe3.5-inchharddiskdriveorhybridharddiskdrive”

Keyboard,mouse,orpointingdeviceproblems

Selectyoursymptomfromthefollowinglist:

•“Allorsomekeysonthekeyboarddonotwork”onpage42

•“Themouseorpointingdevicedoesnotwork”onpage43

•“Thepointeronthescreendoesnotmovesmoothlywiththemouse”onpage44

•“Thefingerprintreaderdoesnotwork”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”onpage31

fordetails.

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,itmaybedifficultforthedigitalsignalprocessor(DSP)todeterminechanges
inthemouseposition.

.

.

Chapter5.Troubleshootinganddiagnostics43

5.Reconnectthemousecabletothecomputer.

6.Turnyourcomputerbackon.

Thepointeronthescreendoesnotmovesmoothlywiththemouse

Symptom:Thepointeronthescreendoesnotmovesmoothlywiththemouse.

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

Thefingerprintreaderdoesnotwork

Symptom:Thefingerprintreaderdoesnotwork.

Action:Thefollowingcouldcausethefingerprintreadernottooperateproperly:

•Notenrollingyourfingerprintcorrectly.

•Scratchingthesurfaceofthereaderwithahard,pointedobject.

•Scrapingthesurfaceofthereaderwithyournailoranythinghard.

•Usingortouchingthereaderwithadirtyfinger.

•Thesurfaceofyourfingerisverydifferentfromwhenyouenrolledyourfingerprint.

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

•“Theimageappearstobeflickering”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.

Theimageappearstobeflickering

Symptom:Theimageappearstobeflickering.

Actions:

•Themonitormightbeoperatinginalow-refreshratedisplaymode.Setthemonitortothehighest,
noninterlacedrefreshratesupportedbyyourmonitorandthevideocontrollerinyourcomputer.

Attention:Usingaresolutionorrefreshratethatisnotsupportedbyyourmonitormightdamageit.
Checkthedocumentationthatcomeswithyourmonitortoverifythesupportedrefreshrates.

•Themonitormightbeaffectedbyinterferencefromnearbyequipment.Magneticfieldsaroundother
devices,suchastransformers,appliances,fluorescentlights,andothermonitorsmightbecausingthe
problem.Movefluorescentdesklightingoranyequipmentthatproducesmagneticfieldsfartheraway
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”onpage31

fordetails.

Theimageisdiscolored

Symptom:Theimageisdiscolored.

Action:Themonitormightbeaffectedbyinterferencefromnearbyequipment.Magneticfieldsaroundother
devices,suchastransformers,appliances,fluorescentlights,andothermonitorsmightbecausingthe
problem.Movefluorescentdesklightingoranyequipmentthatproducesmagneticfieldsfurtherawayfrom
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

•“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.

•Thecableisinstalledproperly.

46ThinkCentreE73zHardwareMaintenanceManual

•Y ouareusingthecorrectdevicedriver.
OntheWindows7operatingsystem,dothefollowing:

1.ClickStart➙ControlPanel.

2.ClickHardwareandSound.

3.ClickDeviceManager.Ifyouarepromptedforanadministratorpasswordorconfirmation,typethe
passwordorprovideconfirmation.

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

5.ClickUpdateDriverSoftware,andthenfollowtheinstructionsonthescreen.

OntheWindows8orWindows8.1operatingsystem,dothefollowing:

1.OpenControlPanel.

2.ClickHardwareandSound.

3.ClickDeviceManager.Ifyouarepromptedforanadministratorpasswordorconfirmation,typethe
passwordorprovideconfirmation.

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

5.ClickUpdateDriverSoftware,andthenfollowtheinstructionsonthescreen.

•Theswitchportandtheadapterhavethesameduplexsetting.
Ifyouconfiguredtheadapterforfullduplex,ensurethattheswitchportisalsoconfiguredforfullduplex.

Settingthewrongduplexmodecandegradeperformance,causedataloss,orresultinlostconnections.

•Y ouhaveinstalledallnetworkingsoftwarethatisnecessaryforyournetworkenvironment.
CheckwithyourLANadministratorforthenecessarynetworkingsoftware.

Theadapterstopsworkingfornoapparentreason

Symptom:Theadapterstopsworkingfornoapparentreason.

Action:Thenetworkdriverfilesmaybecorruptormissing.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
supportedbyAccessConnectionsisthelatestdocumentedinthereadmefile.

•Ensurethatyourcomputeriswithinrangeofawirelessaccesspoint.

•Ensurethatthewirelessradioisenabledbydouble-clickingtheAccessConnectionsiconintheWindows
notificationarea.

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

Bluetoothproblem

Symptom:SounddoesnotcomefromtheBluetoothheadsetorheadphonebutcomesfromthelocal
speakereventhoughtheheadsetorheadphoneisconnectedusingtheHeadsetprofileorAVprofile.

Action:Dothefollowing:

1.Exittheapplicationthatusesthesounddevice(forexample,WindowsMedia

2.OpenControlPanel.

3.ClickHardwareandSound➙Sound.

4.SelectthePlaybacktab.

5.IfyouareusingtheHeadsetprofile,selectBluetoothHands-freeAudioandclicktheSetDefault
button.IfyouareusingtheAVprofile,selectStereoAudioandclicktheSetDefaultbutton.

6.ClickOKtoclosetheSoundwindow.

Note:Bluetoothissupportedonlyonsomecomputermodels.

®

Player).

Optionproblems

UsethisinformationtodiagnoseproblemswithLenovohardwareoptionsthatdonothavetheirown
troubleshootinginformation.

Selectyoursymptomfromthefollowinglist:

•“Anoptionthatwasjustinstalleddoesnotwork”onpage48

•“Anoptionthatpreviouslyworkeddoesnotworknow”onpage49

Anoptionthatwasjustinstalleddoesnotwork

Symptom:Anoptionthatwasjustinstalleddoesnotwork.

48ThinkCentreE73zHardwareMaintenanceManual

Action:Verifythat:

•Theoptionisdesignedforyourcomputer.

•Y oufollowedtheinstallationinstructionssuppliedwiththeoptionandtheinstallationinstructionsprovided
withyourcomputer,andalloptionfiles(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:

•“Insufficientfreeharddiskdrivespace”onpage49

•“Excessivenumberoffragmentedfiles”onpage50

Makeaselectionfromtheabovelisttofindoutmoreaboutthecorrectiveactionsyoucantake.

Insufficientfreeharddiskdrivespace

Symptom:Insufficientfreeharddiskdrivespace

TheWindowsoperatingsystemwillslowdownandmightproduceerrorsiftheharddiskdrivegetstoofull.

TochecktheamountoffreespaceontheWindows7operatingsystem,dothefollowing:

1.ClickStart➙Computer.

2.Right-clickyourCdriveentryandthenclickProperties.Theamountoffreediskspaceisdisplayed.

TochecktheamountoffreespaceontheWindows8operatingsystem,dothefollowing:

1.OpentheWindowsExplorerandclickComputer.

2.Right-clickyourCdriveentryandthenclickProperties.Theamountoffreediskspaceisdisplayed.

Chapter5.Troubleshootinganddiagnostics49

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.Alistofunnecessaryfilecategoriesisdisplayed.Selecteachfilecategoryyouwanttodelete,
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.ClickCleanupsystemfiles.

5.ClicktheMoreOptionstab.

6.IntheProgramsandFeaturesarea,clicktheCleanupbutton.

7.Alistofinstalledprogramsisdisplayed.Selecttheprogramthatyouwanttoremove.Click
Uninstall/ChangeorUninstall.

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

Excessivenumberoffragmentedfiles

Symptom:Excessivenumberoffragmentedfiles

Action:RuntheWindowsDiskDefragmenterprogram.

Note:Dependingonthesizeoftheharddiskdriveandamountofdatacurrentlystoredontheharddisk
drive,thedisk-defragmentationprocessmighttakeuptoseveralhourstocomplete.

OntheWindows7operatingsystem,dothefollowing:

1.Closeanyprogramsthatarecurrentlyrunningandcloseanyopenwindows.

2.ClickStart➙Computer.

3.Right-clickyourCdriveentryandthenclickProperties.

4.ClicktheToolstab.

5.ClickDefragmentNow,thenclickContinue.

50ThinkCentreE73zHardwareMaintenanceManual

6.ClickDefragmentNowagaintostartadisk-defragmentationprocess.

OntheWindows8orWindows8.1operatingsystem,dothefollowing:

1.Closeanyprogramsthatarecurrentlyrunningandcloseanyopenwindows.

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

3.Right-clickyourCdriveentryandthenclickProperties.

4.ClicktheT oolstabandthenclickOptimize.

5.ClickOptimizeintheOptimizeDriveswindowthatisdisplayedtostartadisk-defragmentationprocess.

Insufficientmemory

Symptom:Insufficientmemory

Ingeneral,themorememorythatisinstalled,thebettertheWindowsoperatingsystemruns.

Action:Installadditionalmemory.Forinformationaboutpurchasingmemory,see“LenovoSupportWeb
site”onpage31
module”onpage99

Iftheseactionsdonotcorrecttheproblem,runthediagnosticprograms(see“LenovoSolutionCenter”on
page53forinstructions).Ifyouneedtechnicalassistance,see“LenovoSupportWebsite”onpage31.

.Forstep-by-stepinstructionsoninstallingmemory,see“Installingorreplacingamemory

.

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.

Actions:

.

•Ensurethattheserialcableissecurelyconnectedtotheserialportonthecomputerandtotheserial
device.Iftheserialdevicehasitsownpowercord,ensurethatitisattachedtoaproperlygrounded
electricaloutlet.

•IftheserialdevicehasitsownOn/Offswitch,ensurethatitisintheOnposition.

Chapter5.Troubleshootinganddiagnostics51

•IftheserialdevicehasanOnlineswitch,ensurethatitisintheOnlineposition.

•Iftheserialdeviceisaprinter,ensurethatpaperisloadedcorrectly.

•Verifythatanysoftwaresuppliedwiththeserialdeviceiscorrectlyinstalled.Refertothedocumentation
fortheserial-deviceoption.

•Ensurethattheserial-portadapter,ifyouaddedone,isproperlyinstalledandfirmlyseated.

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

Softwareproblems

Selectyoursymptomfromthefollowinglist:

•“Whenusingasortfeature,datesdonotsortinthecorrectorder”onpage52

•“Softwaredoesnotworkasexpected”onpage52

Whenusingasortfeature,datesdonotsortinthecorrectorder

Symptom:Whenusingasortfeature,datesdonotsortinthecorrectorder.

Action:Somesoftwaredevelopedbeforetheyear2000usedonlythelasttwodigitsofayeartosort
dates,alwaysassumingthefirsttwodigitswere19.Consequently,theseprogramssortdatesoutoforder.
Checkwithyoursoftwaremanufacturertoseeifanyupdatesareavailable.Manysoftwaremanufacturers
makeupdatesavailablefromtheWorldWideWeb.

Softwaredoesnotworkasexpected

Symptom:Softwaredoesnotworkasexpected.

Actions:

•Mostsoftwareprogramshavebuilt-inhelpsystemsthatprovideinstructionsformosttasks.Ifyouare
havingdifficultyperformingaspecifictaskwithinasoftwareprogram,refertothehelpsystemforthat
program.Helpsystemsaretypicallyaccessiblefromamenuorbuttonintheprogram,andfrequently
fromtheF1key.

•IfyouarehavingdifficultywiththeWindowsoperatingsystemoroneofitscomponents,refertothe
Windowshelpsystem.ItisaccessiblefromtheWindowsStartmenu.

•T odetermineifproblemsarecausedbynewlyinstalledsoftware,verifythat:
–Y ourcomputerhastheminimummemoryrequirementsneededtousethesoftware.Seethe

informationsuppliedwiththesoftwaretoverifymemoryrequirements.(Ifyoujustinstalledanadapter

ormemory,youmighthaveamemory-addressconflict.)
–Thesoftwareisdesignedtooperateonyourcomputer.
–Othersoftwareworksonyourcomputer.
–Thesoftwareyouareusingworkscorrectlyonanothercomputer.

•Ifyoureceivedanyerrormessageswhileusingthesoftwareprogram,seetheprinteddocumentation
suppliedwiththesoftwareorthehelpsystemforthatsoftwareforadescriptionofthemessagesand
solutionstotheproblem.

•Checkwithyoursoftwaremanufacturertoseeifanyupdatesareavailable.Manysoftwaremanufacturers
makeupdatesavailablefromtheWorldWideWeb.

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

➙SystemProtection➙SystemRestore.Then,followtheinstructionsonthescreen.

52ThinkCentreE73zHardwareMaintenanceManual

–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”onpage53

2.Ifyouareunabletoisolateandrepairtheproblemyourselfafterrunningthediagnosticprogram,save
andprintthelogfilescreatedbythediagnosticprogram.Y ouwillneedthelogfileswhenyouspeaktoa
Lenovotechnicalsupportrepresentative.

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.

Chapter5.Troubleshootinganddiagnostics53

ToruntheLenovoSolutionCenterprogram,see“Lenovoprograms”onpage29.

Foradditionalinformation,refertotheLenovoSolutionCenterhelpsystem.

Note:Ifyouareunabletoisolateandrepairtheproblemyourselfafterrunningtheprogram,saveandprint
thelogfiles.YouwillneedthelogfileswhenyouspeaktoaLenovotechnicalsupportrepresentative.

UEFIdiagnosticprogram

AUEFIdiagnosticprogramispreinstalledonthecomputer.Itenablesyoutotestmemorymodulesand
internalstoragedevices,viewsysteminformation,andcheckandrecoverbadsectorsoninternalstorage
devices.

ToruntheUEFIdiagnosticprogram,dothefollowing:

1.Turnonthecomputer.Ifthecomputercannotbeturnedon,goto“Basictroubleshooting”onpage

35.Ifanerrorcodeisdisplayed,gotoChapter7“Symptom-to-FRUIndex”onpage61forerrorcode
descriptionsandtroubleshootinghints.

2.RepeatedlypressandreleasetheF10keywhenturningonthecomputer.Themainscreenofthe
UEFIdiagnosticprogramisdisplayed.

3.Followtheinstructionsonthescreentousethediagnosticprogram.

Theoptionsonthemainscreenareasfollows:

Table3.ItemsonthemainscreenoftheUEFIdiagnosticprogram

DIAGNOSTICSTOOLS

•LCDtest

•Memory-Quicktest

•Memory-Extendedtest

•Motherboardtest

•PCI-etest

•Storage-Quicktest

•Systeminformation

•Recoverbadsectorstool

•Generateconfigurationfile

•Executefromconfigurationfile

•Exitapplication

54ThinkCentreE73zHardwareMaintenanceManual

Chapter6.UsingtheSetupUtilityprogram

TheSetupUtilityprogramisusedtoviewandchangetheconfigurationsettingsofyourcomputer,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.PressEnterwhenpromptedtoconfirmtheexit.Theerrormessagewillnotbedisplayedagain.

•PressF2tobypasstheerrormessageandlogintotheoperatingsystem.

.

Note:YouhavetoenabletheconfigurationchangedetectionfeatureforthePOSTtodetecttheremovalof
theharddiskdrive.Toenabletheconfigurationchangedetectionfeature,dothefollowing:

1.StarttheSetupUtilityprogram.

2.FromtheSetupUtilityprogrammainmenu,selectSecurity➙ConfigurationChangeDetection,
andpressEnter.

3.SelectEnabledandpressEnter.

4.PressF10tosavechangesandexittheSetupUtilityprogram.PressEnterwhenpromptedtoconfirm
theexit.

Viewingandchangingsettings

TheSetupUtilityprogrammenulistsvariousitemsaboutthesystemconfiguration.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

•Besignificantlydifferentfromyourpreviouspasswords

Power-onpassword

Whenapower-onpasswordisset,youarepromptedtotypeavalidpasswordeachtimethecomputeris
turnedon.Thecomputercannotbeuseduntilthevalidpasswordistypedin.

Administratorpassword

Settinganadministratorpassworddetersunauthorizedusersfromchangingconfigurationsettings.Ifyou
areresponsibleformaintainingtheconfigurationsettingsofseveralcomputers,youmightwanttosetan
AdministratorPassword.

Whenanadministratorpasswordisset,youarepromptedtotypeavalidpasswordeachtimeyoutryto
accesstheSetupUtilityprogram.TheSetupUtilityprogramcannotbeaccesseduntilavalidpassword
istypedin.

Ifboththepower-onpasswordandadministratorpasswordareset,youcantypeeitherpassword.However,
youmustuseyouradministratorpasswordtochangeanyconfigurationsettings.

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”onpage73.

4.Removethecomputercover.See“Removingthecomputercover”onpage76.

5.Removethesystemboardshield.See“Removingandreinstallingthesystemboardshield”onpage85.

6.LocatetheClearComplementaryMetalOxideSemiconductor(CMOS)/Recoveryjumperonthesystem
board.See“Locatingpartsonthesystemboard”onpage71.

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

8.Installthesystemboardshield.See“Removingandreinstallingthesystemboardshield”onpage85.

9.Installthecomputercover.See“Completingthepartsreplacement”onpage111.

10.Installthecomputerstand.See“Removingandinstallingthecomputerstand”onpage73.

11.Connecttheexternalcablesandthepowercordtothecomputer.

12.Turnonthecomputerandleaveitonforapproximately10seconds.Then,turnoffthecomputerby
holdingthepowerswitchforapproximatelyfiveseconds.

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”
onpage59

.

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

Tovieworpermanentlychangetheconfiguredstartupdevicesequence,dothefollowing:

1.StarttheSetupUtilityprogram.See“StartingtheSetupUtilityprogram”onpage55.

2.FromtheSetupUtilityprogrammainmenu,selectStartup.

3.SelectthedevicesforthePrimaryStartupSequence,theAutomaticStartupSequence,andtheError
StartupSequence.Readtheinformationdisplayedontherightsideofthescreen.

4.PressF10tosavechangesandexittheSetupUtilityprogram.See“ExitingtheSetupUtilityprogram”
onpage59

.

EnablingErPLPScompliancemode

Lenovocomputersmeettheeco-designrequirementsoftheErPLot3regulation.Formoreinformation,go
to:
http://www.lenovo.com/ecodeclaration

Youcanenabletheenergy-relatedproductsdirective(ErP)lowestpowerstate(LPS)compliancemodeinthe
SetupUtilityprogramtoreducetheconsumptionofelectricitywhenyourcomputerisinsleeporoffmode.

ToenableErPLPScompliancemodeintheSetupUtilityprogram,dothefollowing:

1.StarttheSetupUtilityprogram.See“StartingtheSetupUtilityprogram”onpage55.

2.FromtheSetupUtilityprogrammainmenu,selectPower➙EnhancedPowerSavingMode,and
pressEnter.

3.SelectEnabledandpressEnter.

4.FromthePowermenu,selectAutomaticPowerOnandpressEnter.

5.SelectWakeonLanandpressEnter.

6.SelectDisabledandpressEnter.

7.PressF10tosavechangesandexittheSetupUtilityprogram.PressEnterwhenpromptedtoconfirm
theexit.

Note:WhenErPLPScompliancemodeisenabled,youcanwakeupyourcomputerbydoingoneof
thefollowing:

•Pressingthepowerswitch

•Enablingthewakeuponalarmfeature
Thewakeuponalarmfeatureenablesyourcomputertowakeupatasettime.Toenablethewake

uponalarmfeature,dothefollowing:

58ThinkCentreE73zHardwareMaintenanceManual

1.StarttheSetupUtilityprogram.

2.FromtheSetupUtilityprogrammainmenu,selectPower➙AutomaticPowerOn,andpressEnter.

3.SelectWakeUponAlarmandpressEnter.Thenfollowtheinstructionsonthescreen.

4.PressF10tosavechangesandexittheSetupUtilityprogram.PressEnterwhenpromptedto
confirmtheexit.

•Enablingtheafterpowerlossfeature
Theafterpowerlossfeatureenablesyourcomputertowakeupwhenthepowersupplyresumesaftera

suddenlossofelectricity.Toenabletheafterpowerlossfeature,dothefollowing:

1.StarttheSetupUtilityprogram.

2.FromtheSetupUtilityprogrammainmenu,selectPower➙AfterPowerLoss,andpressEnter.

3.SelectPowerOnandpressEnter.

4.PressF10tosavechangesandexittheSetupUtilityprogram.PressEnterwhenpromptedto
confirmtheexit.

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.SelectYesinthewindowdisplayedandpressEntertoconfirmyourselection.

5.PressF10tosavechangesandexittheSetupUtilityprogram.See“ExitingtheSetupUtilityprogram”
onpage59.

ExitingtheSetupUtilityprogram

Afteryoufinishviewingorchangingsettings,pressEsctoreturntotheSetupUtilityprogrammainmenu.
YoumighthavetopressEscseveraltimes.Dooneofthefollowing:

•Ifyouwanttosavethenewsettings,pressF10tosavechangesandexittheSetupUtilityprogram.

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

•Ifyouwanttoreturntothedefaultsettings,pressF9toloadthedefaultsettings,andthenpressF10to
saveandexittheSetupUtilityprogram.

Chapter6.UsingtheSetupUtilityprogram59

60ThinkCentreE73zHardwareMaintenanceManual

Chapter7.Symptom-to-FRUIndex

TheSymptom-to-FRUindexlistserrorsymptomsandpossiblecauses.Themostlikelycauseislistedfirst.
AlwaysbeginwithChapter4“Generalcheckout”onpage33.Thisindexcanalsobeusedtohelpyoudecide
whichFRUstohaveavailablewhenservicingacomputer.Ifyouareunabletocorrecttheproblemusingthis
index,goto“Undeterminedproblems”onpage65

Notes:

•Ifyouhavebothanerrormessageandanincorrectaudioresponse,diagnosetheerrormessagefirst.

•Ifyoucannotrunthediagnostictestsoryougetadiagnosticerrorcodewhenrunningatest,butdidreceivea
POSTerrormessage,diagnosethePOSTerrormessagefirst.

•Ifyoudidnotreceiveanyerrormessage,lookforadescriptionofyourerrorsymptomsinthefirstpartofthisindex.

Harddiskdrivebooterror

Aharddiskdrivebooterrorcanhavethefollowingcauses.

ErrorFRU/Action

Thestart-updriveisnotinthebootsequencein
configuration.

Nooperatingsysteminstalledonthebootdrive.Installanoperatingsystemonthebootdrive.
Thebootsectoronthestartupdriveiscorrupted.

Thedriveisdefective.

.

Checktheconfigurationandensurethestart-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

61

Thefollowingtabledescribesthebeepsymptoms.

BeepsymptomFRU/Action
2shortbeepsCMOSsettingerrorCommonerrorcode,seethedetailfailureinformationin

“POSTerrorcodes”onpage62.

3shortand1longbeepsDRAMmemoryerror

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

•Verifiesthatthebootdriveisworking

IfthePOSTdetectsaproblem,anerrormessageappearsonthescreen.Asingleproblemcancauseseveral
errormessagestoappear.Whenyoucorrectthecauseofthefirsterrormessage,theothererrormessages
probablywillnotappearonthescreenthenexttimeyouturnonthesystem.

ErrorcodePOSTerrormessageDescription/Action

0135

0211

0164MemorysizedecreasedPressF10toexit.
1762

Fanfailure

Keyboardnotfound

Configurationchangehasoccurred

Thesystemmightbeoverheating.

PressF10toexit.

Note:Iftheproblemiscausedbythe
microprocessorfan,pressF10will
notsolvetheproblem.

Whenthereisnokeyboarddetected,
theerrormessagewillbedisplayed.

Thiserrormessageisdisplayedwhen
aharddiskdriveoropticaldrive
changehasbeenmade.

PressF10toexit.

62ThinkCentreE73zHardwareMaintenanceManual

ErrorcodePOSTerrormessageDescription/Action

1820

1962

Morethanoneexternalfingerprint
readerareattached.Poweroffand
removeallbutthereaderthatyouset
upwithinyourmainoperatingsystem.

Nooperatingsystemfound.Press
anykeytorepeatbootsequence.

Miscellaneouserrorconditions

Message/SymptomFRU/Action

ChangingdisplaycolorsDisplay/Monitor
Computerwillnotpower-off.See“Harddiskdriveboot

error”onpage61

ComputerwillnotRPLfromserver

ComputerwillnotperformaWakeOnLAN

Deadcomputer.See“Harddiskdrivebooterror”onpage

61.

Diskettedrivein-uselightremainsonordoesnotlight
whendriveisactive.

Blankscreenexceptforflashingcursor.

.

®

(ifapplicable)1.Checkpowersupplyandsignalcableconnections

1.PowerSwitch

2.SystemBoard

3.Risercard,ifinstalled.

1.Ensurethatnetworkisinstartupsequenceasfirst

deviceorfirstdeviceafterdiskette.

2.EnsurethatnetworkadapterisenabledforRPL.

3.Networkadapter(Advisenetworkadministratorof

newMACaddress)

tonetworkadapter.

2.Ensurethattheoperatingsystemsettingsaresetto

enableWakeonLAN.

3.EnsureWakeOnLANfeatureisenabledin

Setup/Configuration(see“StartingtheSetupUtility
program”onpage55)

4.EnsurenetworkadministratorisusingcorrectMAC

address.

5.EnsurenointerruptorI/Oaddressconflicts.

6.Networkadapter(advisenetworkadministratorof

newMACaddress)

1.PowerSupply

2.SystemBoard

1.DisketteDrive

2.SystemBoard

3.DisketteDriveCable

1.SystemBoard

2.PrimaryHardDiskDrive

3.HardDiskDriveCable

Ifmorethanoneexternalfingerprint
readerareconnectedtoacomputer,
thiserrormessagewillbedisplayed
toinformyoutoremoveallofthe
fingerprintkeyboardsexceptthe
onecompatiblewiththefingerprint
applicationonyourcomputer.

ThiserroroccursonlyafterthePOST
iscompleted.

Pressanykeytorepeatboot
sequence.

Chapter7.Symptom-to-FRUIndex63

Message/SymptomFRU/Action

IncorrectmemorysizeduringPOST

"InsertaDiskette"iconappearswithaknown-good
diagnosticsdisketteinthefirst3.5-inchdiskettedrive.

Intensityorcolorvariesfromlefttorightofcharacters
andcolorbars

Nopowerorfannotrunning
Non-systemdiskordiskerror-typemessagewitha

known-gooddiagnosticdiskette.

Otherdisplaysymptomsnotlistedabove(includingblank
orillegibledisplay)

Power-onindicatororharddiskdrivein-uselightnoton,
butcomputerworkscorrectly

Printerproblems1.Printer

Programloadsfromtheharddiskwithaknown-good
diagnosticsdisketteinthefirst3.5-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”onpage61.

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

64ThinkCentreE73zHardwareMaintenanceManual

Message/SymptomFRU/Action

Serialorparallelportdevicefailure(adapterport)1.ExternalDeviceSelf-TestOK?

2.ExternalDevice

3.Cable

4.AlternateAdapter

5.SystemBoard

Someorallkeysonthekeyboarddonotwork

1.Keyboard

2.KeyboardCable

3.SystemBoard

Undeterminedproblems

Thissectionprovidesinstructionsonhowtofindoutthefailingdevicesoradapters.

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.Repeatsteps1through3untilyoufindthefailingdeviceoradapter.

Ifalldevicesandadaptershavebeenremoved,andtheproblemcontinues,replacethesystemboard.

Chapter7.Symptom-to-FRUIndex65

66ThinkCentreE73zHardwareMaintenanceManual

Chapter8.Locations

Thischapterintroducesthelocationsofthecomputerhardwarecomponents.

Locatingconnectors,controls,andindicatorsonthefrontofyour computer

Figure1“Frontconnector,control,andindicatorlocations”onpage67showsthelocationsofthe
connectors,controls,andindicatorsonthefrontofyourcomputer.

Figure1.Frontconnector,control,andindicatorlocations

1Integratedmicrophone2Integratedcameraindicator
3Integratedcamera4Poweronindicator
5Internalspeaker

7USB3.0connector
9Microphoneconnector

©CopyrightLenovo2013,2014

6Cardreader(availableonsomemodels)
8Headphoneconnector

10USB3.0connector

67

Locatingconnectorsontherearofyourcomputer

Figure2“Rearconnectorlocations”onpage68showsthelocationsoftheconnectorsontherearofyour
computer.Someconnectorsontherearofyourcomputerarecolor-codedtohelpyoudeterminewhereto
connectthecablesonyourcomputer.

Figure2.Rearconnectorlocations

1Powercordconnector2Ethernetconnector
3VGA-outconnector4USB2.0connectors(4)
5Serialconnector(availableonsomemodels)
7Brightness-downcontrol8Brightness-upcontrol
9Security-lockslot10Opticaldrive

6Powerbutton

LocatingmajorFRUsandCRUs

Figure3“LocatingmajorFRUsandCRUs”onpage69showsthelocationsofthemajorFRUsandCRUsin
thecomputer.Toremovethecomputercover,see“Removingthecomputercover”onpage76.

68ThinkCentreE73zHardwareMaintenanceManual

Figure3.LocatingmajorFRUsandCRUs

Chapter8.Locations69

ThefollowingtableliststhemajorFRUsshowninFigure3“LocatingmajorFRUsandCRUs”onpage69and
identifieswhichFRUsarealsoself-serviceCRUsoroptional-serviceCRUs.

Notes:

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

•Optional-serviceCRUs:TheseCRUsareisolatedpartswithinthecomputerandareconcealedbyan
accesspanelthatistypicallysecuredbymorethantwoscrews.Oncetheaccesspanelisremoved,the
specificCRUisvisible.

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

MemorymoduleNoNo
BatteryNoNo
Systemboard
LCDbracket
LCDpanel
Cardreader
Wi-FiNoNo
FootstandNoYes
RearI/Oassembly
InternalspeakerNoNo
PowersupplyNoNo
InternalspeakerNoNo
FootstandNoNo
Controlbuttonboard
HarddiskdriveNoYes
Hard-disk-driveEMIshieldNoNo
LCDconverterboard
Opticaldrive
VideoElectronicsStandardsAssociation(VESA

mountbracket

26

27

28

IntegratedcameraNoNo
KeyboardYesNo
MouseY esNo

Self-serviceCRUOptional-serviceCRU

NoYes
NoNo
NoNo

NoNo

NoNo
NoNo
NoNo
NoNo

NoNo

NoNo

NoNo
NoNo

®

)

NoNo

70ThinkCentreE73zHardwareMaintenanceManual

LookingupFRUinformation

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

Locatingpartsonthesystemboard

Figure4“Locationsofthepartsandconnectorsonthesystemboard”onpage71showsthelocations
ofthepartsandconnectorsonthesystemboard.

Figure4.Locationsofthepartsandconnectorsonthesystemboard

1LCDpanelconnector2Memoryslots(2)
3Integratedcameracableconnector

4Coverpresenceswitchconnector(Intrusionswitch

connector)

5Touchcontrolconnector(notenabled)
7ClearComplementaryMetalOxideSemiconductor

6Battery

8ClearCMOS2

(CMOS)/Recoveryjumper

9MiniPCIexpresscardslot(WI-FIcardconnector)
11Cardreaderconnector12RearI/Oconnector
13Serialconnector14SATA3.0connector(Harddiskdrivesignalconnector)
15SATApowerconnector(Harddiskdriveandoptical

10Internalspeakercableconnector

16PS/2keyboardandPS/2mouseconnector

drivepowerconnector)

Chapter8.Locations71

17SATA3.0connector(Opticaldrivesignal

18Converterboardconnector

connector)

19Controlbuttonboardconnector2014-pinpowerconnector(Powersupplyassembly

connector)

21Microprocessorfanconnector

22Microprocessor

72ThinkCentreE73zHardwareMaintenanceManual

Chapter9.ReplacingFRUs

ThischapterprovidesinstructionsaboutremovingorreplacingmajorFRUs.NotallFRUsaredocumented.

Important

BeforeyoureplaceanyFRU,readChapter2“Safetyinformation”onpage3.Theseprecautionsand
guidelineswillhelpyouworksafely.

FRUreplacementsaretobedonebytrainedservicetechniciansonly.

ThischapterprovidesinstructionsaboutremovingorreplacingmajorFRUs.NotallFRUsaredocumented.

Removingandinstallingthecomputerstand

Attention:DonotopenyourcomputerorattemptanyrepairbeforereadingandunderstandingtheChapter

2“Safetyinformation”onpage3.

Thissectionprovidesinstructionsonhowtoremoveandinstallthecomputerstand.

Thecomputermightbeinstalledwithamonitorstandoraframestand.

•T oremoveandinstalltheframestand,see“Removingandreinstallingtheframestand”onpage73.

•T oremoveandinstallthemonitorstand,see“Removingandinstallingthemonitorstand”onpage75

.

Removingandreinstallingtheframestand

Attention:DonotopenyourcomputerorattemptanyrepairbeforereadingandunderstandingtheChapter

2“Safetyinformation”onpage3

Thissectionprovidesinstructionsonhowtoremoveandreinstalltheframestand.

Toremoveandreinstalltheframestand,dothefollowing:

1.Removeanymediafromthedrivesandturnoffallattacheddevicesandthecomputer.

2.Disconnectallpowercordsfromelectricaloutlets.

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

and“Locatingconnectorsontherearofyourcomputer”onpage68.

67

4.Placeasoft,cleantowelorclothonthedeskorsurface.Holdthesidesofyourcomputerandgentlylay
itdownsothatthescreenisagainstthesurfaceandthecoverisfacingup.

.

©CopyrightLenovo2013,2014

73

5.Removethesheetmetal.Savethesheetmetalforrecoveringthescrewhole.Loosenthescrew1that
securestheframestand,andthenlifttheframestandupandremoveitfromthecomputer.

Figure5.Removingtheframestand

6.Toinstalltheframestand,positiontheframestandoverthecomputersothatthescrewholeinthe
standalignswiththecorrespondingholeinthecomputercover.

Figure6.Reinstallingtheframestand

74ThinkCentreE73zHardwareMaintenanceManual

7.Reinstallthescrewtosecuretheframestandtothecomputer.Recoverthescrewholewiththe
sheetmetal.

Figure7.Reinstallingthescrewtosecuretheframestandtothecomputer

Removingandinstallingthemonitorstand

Attention:DonotopenyourcomputerorattemptanyrepairbeforereadingandunderstandingtheChapter

2“Safetyinformation”onpage3.

Thissectionprovidesinstructionsonhowtoinstallthemonitorstand.

Note:Themonitorstandisavailableonlyinsomemodels.

Toinstallthemonitorstand,dothefollowing:

1.Removeanymediafromthedrivesandturnoffallattacheddevicesandthecomputer.

2.Disconnectallpowercordsfromelectricaloutlets.

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

and“Locatingconnectorsontherearofyourcomputer”onpage68.

67

4.Placeasoft,cleantowelorclothonthedeskorsurface.Holdthesidesofyourcomputerandgentlylay
itdownsothatthescreenisagainstthesurfaceandthecoverisfacingup.

5.Ifyourcomputerisinstalledwithaframestand,removetheframestand.See“Removingandreinstalling
theframestand”onpage73

Chapter9.ReplacingFRUs75

6.Ifyourcomputerisinstalledwithamonitorstand,removethetwoscrewsthatsecurethemonitorstand,
andthenremovethemonitorstandfromthecomputer.

Figure8.Removingthemonitorstand

7.Toinstallthemonitorstand,placethemonitorstandonthecomputersothatthetwoplastictabsonthe
monitorstandalignwiththecorrespondingholesinthecomputer.Installthetwoscrewstosecurethe
monitorstandtothecomputer.

Figure9.Installingthemonitorstand

8.Ifneeded,openthecablemanagerandroutethecablesconnectedtothecomputerthroughthecable
managertokeepyourworkspaceneat.

Removingthecomputercover

Attention:DonotopenyourcomputerorattemptanyrepairbeforereadingandunderstandingtheChapter

2“Safetyinformation”onpage3

Thissectionprovidesinstructionsonhowtoremovethecomputercover.

76ThinkCentreE73zHardwareMaintenanceManual

.

CAUTION:

Beforeyouopenthecomputercover,turnoffthecomputerandwaitseveralminutesuntilthe
computeriscool.

Toremovethecomputercover,dothefollowing:

1.Removeallmediafromthedrivesandturnoffallattacheddevicesandthecomputer.Then,disconnect
allpowercordsfromelectricaloutletsanddisconnectallcablesthatareconnectedtothecomputer.

2.Placeasoft,cleantowelorclothonthedeskorotherflatsurface.Holdthesidesofyourcomputerand
gentlylayitdownsothatthescreenisagainstthesurfaceandthecoverisfacingup.

3.Removeanylockingdevicethatsecuresthecomputercover,suchasanintegratedcablelock.

4.Removetheframestand.See“Removingandreinstallingtheframestand”onpage73.

5.Loosenthetwoscrews1atthebottomofthecomputer,andthenliftthecomputercoveruptoremove
itfromthecomputer.

Note:Afterloosethescrews,youmightneedtousethescrew-drivertopryaroundthewholecomputer
toopenthecomputercover.

Figure10.Removingthecomputercover

Removingandreinstallingthefeetstand

Attention:DonotopenyourcomputerorattemptanyrepairbeforereadingandunderstandingtheChapter

2“Safetyinformation”onpage3.

Thissectionprovidesinstructionsonhowtoremoveandreinstallthefeetstand.

Toremoveandreinstallthefeetstand,dothefollowing:

1.Removeanymediafromthedrivesandturnoffallattacheddevicesandthecomputer.

2.Disconnectallpowercordsfromelectricaloutlets.

3.Disconnectthepowercords,Input/Outputcables,andanyothercablesthatareconnectedtothe
computer.See“Locatingconnectors,controls,andindicatorsonthefrontofyourcomputer”onpage
67

and“Locatingconnectorsontherearofyourcomputer”onpage68.

4.Placeasoft,cleantowelorclothonthedeskorthesurface.Holdthesidesofyourcomputerandgently
layitdownsothatthescreenisagainstthesurfaceandthecoverisfacingup.

Chapter9.ReplacingFRUs77

5.Removethecomputercover.See“Removingthecomputercover”onpage76.

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.

3.Removethecomputerstand.See“Removingandinstallingthecomputerstand”onpage73.

4.Removethecomputercover.See“Removingthecomputercover”onpage76.

78ThinkCentreE73zHardwareMaintenanceManual

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

Figure12.Removingthehard-disk-driveEMIshield

Chapter9.ReplacingFRUs79

6.Toinstallthehard-disk-driveEMIshield,aligntheholeintheEMIshieldwiththestandoffinthechassis
asshown.Then,pushtheEMIshieldstraightdownuntilitissecuredbythestandofffirmlyandthethree
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”onpage73.

4.Removethecomputercover.See“Removingthecomputercover”onpage76.

80ThinkCentreE73zHardwareMaintenanceManual

5.Removethehard-disk-driveEMIshield.See“Removingandinstallingthehard-disk-driveEMIshield”
onpage78.

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.ReplacingFRUs81

10.Connectthehard-disk-drivecabletothenewharddiskdrive.

11.Positionthebracketwiththenewharddiskdriveinthechassissothatthescrewholeinthebracket
alignswiththecorrespondingholeinthechassis.Then,installthescrewtosecurethebracketwiththe
harddiskdrivetothechassis.

12.Installthehard-disk-driveEMIshield.See“Removingandinstallingthehard-disk-driveEMIshield”
onpage78.

Whattodonext:

•T oworkwithanotherpieceofhardware,gototheappropriatesection.

•T ocompletetheinstallationorreplacement,goto“Completingthepartsreplacement”onpage111.

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”onpage73.

4.Removethecomputercover.See“Removingthecomputercover”onpage76.

5.Removethehard-disk-driveEMIshield.See“Removingandinstallingthehard-disk-driveEMIshield”
onpage78.

82ThinkCentreE73zHardwareMaintenanceManual

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.ReplacingFRUs83

12.Installthehard-disk-driveEMIshield.See“Removingandinstallingthehard-disk-driveEMIshield”
onpage78.

Whattodonext:

•T oworkwithanotherpieceofhardware,gototheappropriatesection.

•T ocompletetheinstallationorreplacement,goto“Completingthepartsreplacement”onpage111

Replacingtheopticaldrive

Attention:DonotopenyourcomputerorattemptanyrepairbeforereadingandunderstandingtheChapter

2“Safetyinformation”onpage3.

Thissectionprovidesinstructionsonhowtoreplacetheopticaldrive.

Note:Theopticaldriveisavailableonlyinsomemodels.

Toreplacetheopticaldrive,dothefollowing:

1.Removeallmediafromthedrivesandturnoffallattacheddevicesandthecomputer.Then,disconnect
allpowercordsfromelectricaloutletsanddisconnectallcablesthatareconnectedtothecomputer.

2.Placeasoft,cleantowelorclothonthedeskorotherflatsurface.Holdthesidesofyourcomputerand
gentlylayitdownsothatthescreenisagainstthesurfaceandthecoverisfacingup.

3.Removethecomputercover.See“Removingthecomputercover”onpage76.

4.Locatetheopticaldrive.See“LocatingmajorFRUsandCRUs”onpage68.

5.Removethescrew1thatsecurestheopticaldrive,andthenslidetheopticaldrivetodisconnectthe
opticaldrivefromtheopticaldrivecable.Removetheopticaldrivefromtheopticaldrivebay.

.

Figure18.Removingtheopticaldrive

84ThinkCentreE73zHardwareMaintenanceManual

6.Toinstallanewopticaldrive,slidethenewopticaldriveintotheopticaldrivebaytoconnectthecableto
theopticaldrive.

Figure19.Installingtheopticaldrive

7.Installthescrew1tosecuretheopticaldrive.

Figure20.Installingthescrewtosecuretheopticaldrive

8.Goto“Completingthepartsreplacement”onpage111.

Removingandreinstallingthesystemboardshield

Attention:DonotopenyourcomputerorattemptanyrepairbeforereadingandunderstandingtheChapter

2“Safetyinformation”onpage3.

Thissectionprovidesinstructionsonhowtoremoveandreinstallthesystemboardshield.

Toremoveandreinstallthesystemboardshield,dothefollowing:

Chapter9.ReplacingFRUs85

1.Removeallmediafromthedrivesandturnoffallattacheddevicesandthecomputer.Then,disconnect
allpowercordsfromelectricaloutletsanddisconnectallcablesthatareconnectedtothecomputer.

2.Placeasoft,cleantowelorclothonthedeskorotherflatsurface.Holdthesidesofyourcomputerand
gentlylayitdownsothatthescreenisagainstthesurfaceandthecoverisfacingup.

3.Removethecomputercover.See“Removingthecomputercover”onpage76.

4.Locatethesystemboardshieldinthecomputer.See“LocatingmajorFRUsandCRUs”onpage68.

5.Removethetwoscrews1thatsecuresthesystemboardshield,andthenslidethesystemboard
shieldoutofthecomputer.

Figure21.Removingthesystemboardshield

6.Toreinstallthesystemboardshield,slidethesystemboardshieldintothesystemboardshieldslotso
thatthescrewholesalignswiththatinthecomputer.

7.Reinstallthetwoscrewstosecurethesystemboardshieldtothecomputer.

8.Goto“Completingthepartsreplacement”onpage111.

ReplacingtherearI/Oassembly

Attention:DonotopenyourcomputerorattemptanyrepairbeforereadingandunderstandingtheChapter

2“Safetyinformation”onpage3.

ThissectionprovidesinstructionsonhowtoreplacetherearI/Oassembly.

86ThinkCentreE73zHardwareMaintenanceManual

ToreplacetherearI/Oassembly,dothefollowing:

1.Removeallmediafromthedrivesandturnoffallattacheddevicesandthecomputer.Then,disconnect
allpowercordsfromelectricaloutletsanddisconnectallcablesthatareconnectedtothecomputer.

2.Placeasoft,cleantowelorclothonthedeskorotherflatsurface.Holdthesidesofyourcomputerand
gentlylayitdownsothatthescreenisagainstthesurfaceandthecoverisfacingup.

3.Removethecomputercover.See“Removingthecomputercover”onpage76.

4.Removethesystemboardshield.See“Removingandreinstallingthesystemboardshield”onpage85.

5.LocatetherearI/Oassembly.See“LocatingmajorFRUsandCRUs”onpage68.

6.Removethefivescrews1thatsecuretherearI/Oassembly.RemovetherearI/Oassemblyfromthe
computer.

Figure22.Removingthepowercordconnector

Chapter9.ReplacingFRUs87

7.RemovethepowercordconnectorfromtherearI/Oassembly.

Figure23.RemovingthepowercordconnectorfromtherearI/Oassembly

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

9.Reinstallthesystemboardshield.See“Removingandreinstallingthesystemboardshield”onpage85.

10.Goto“Completingthepartsreplacement”onpage111.

RemovingtheVESAmountbracket

Attention:DonotopenyourcomputerorattemptanyrepairbeforereadingandunderstandingtheChapter

2“Safetyinformation”onpage3

ThissectionprovidesinstructionsonhowtoremovetheVESAmountbracket.

ToremovetheVESAmountbracket,dothefollowing:

1.Removeallmediafromthedrivesandturnoffallattacheddevicesandthecomputer.Then,disconnect
allpowercordsfromelectricaloutletsanddisconnectallcablesthatareconnectedtothecomputer.

2.Placeasoft,cleantowelorclothonthedeskorotherflatsurface.Holdthesidesofyourcomputerand
gentlylayitdownsothatthescreenisagainstthesurfaceandthecoverisfacingup.

3.Removethecomputercover.See“Removingthecomputercover”onpage76.

4.LocatetheVESAmountbracket.See“LocatingmajorFRUsandCRUs”onpage68.

5.Removethesystemboardshield.See“Removingandreinstallingthesystemboardshield”onpage85.

6.RemovetherearI/Oassembly.See“ReplacingtherearI/Oassembly”onpage86.

.

88ThinkCentreE73zHardwareMaintenanceManual

7.Removethethreescrews1thatsecuretheVESAmountbracketandlifttheVESAmountbracket
outofthecomputer.

Figure24.RemovingtheVESAmountbracket

8.ToreinstalltheVESAmountbracket,positiontheVESAmountbracketintothecomputersothatthe
screwholesalignwiththoseinthecomputer.ReinstallthethreescrewstosecuretheVESAmount
bracket.

9.ReinstalltherearI/Oassembly.See“ReplacingtherearI/Oassembly”onpage86.

10.Reinstallthesystemboardshield.See“Removingandreinstallingthesystemboardshield”onpage85.

11.Goto“Completingthepartsreplacement”onpage111.

Replacingthepowersupply

Attention:DonotopenyourcomputerorattemptanyrepairbeforereadingandunderstandingtheChapter

2“Safetyinformation”onpage3.

Thissectionprovidesinstructionsonhowtoreplacethepowersupply.

Toreplacethepowersupply,dothefollowing:

1.Removeallmediafromthedrivesandturnoffallattacheddevicesandthecomputer.Then,disconnect
allpowercordsfromelectricaloutletsanddisconnectallcablesthatareconnectedtothecomputer.

2.Placeasoft,cleantowelorclothonthedeskorotherflatsurface.Holdthesidesofyourcomputerand
gentlylayitdownsothatthescreenisagainstthesurfaceandthecoverisfacingup.

3.Removethecomputercover.See“Removingthecomputercover”onpage76.

Chapter9.ReplacingFRUs89

4.Removethesystemboardshield.See“Removingandreinstallingthesystemboardshield”onpage85.

5.RemovetheVESAmountbracket.See“RemovingtheVESAmountbracket”onpage88.

6.Locatethepowersupply.See“LocatingmajorFRUsandCRUs”onpage68.

7.Disconnectthepowersupplycablesfromthesystemboard.See“Locatingpartsonthesystemboard”
onpage71.

8.RemovethepowercordconnectorfromtherearI/Obracket.See“ReplacingtherearI/Oassembly”
onpage86.

9.Removethetwoscrews1thatsecurethepowersupply,andthenremovethepowersupplyfromthe
computer.

Figure25.Removingthetwoscrewsthatsecurethepowersupply

10.Toreinstallthepowersupply,reinstallthepowercordconnectortotherearI/Obracket.See“Replacing
therearI/Oassembly”onpage86

11.Positionthenewpowersupplyinthecomputerandalignthetwoscrewholesinthenewpowersupply
withthoseinthecomputermainbracket.Installthetwoscrewstosecurethenewpowersupply.

12.Routethenewpowercordconnectorcable,andthenreinstalltherearI/Oassembly.See“Replacing
therearI/Oassembly”onpage86.

13.Connectthenewpowersupplycablestothepowersupplyconnectorsonthesystemboard.See
“Locatingpartsonthesystemboard”onpage71.

14.ReinstalltheVESAmountbracket.See“RemovingtheVESAmountbracket”onpage88.

15.Reinstallthesystemboardshield.See“Removingandreinstallingthesystemboardshield”onpage85.

16.Reinstallthecomputercover.See“Removingthecomputercover”onpage76.

17.Goto“Completingthepartsreplacement”onpage111.

Replacingthemicroprocessorfan

Attention:DonotopenyourcomputerorattemptanyrepairbeforereadingandunderstandingtheChapter

2“Safetyinformation”onpage3.

Thissectionprovidesinstructionsonhowtoreplacethemicroprocessorfan.

90ThinkCentreE73zHardwareMaintenanceManual

Toreplacethemicroprocessorfan,dothefollowing:

1.Removeallmediafromthedrivesandturnoffallattacheddevicesandthecomputer.Then,disconnect
allpowercordsfromelectricaloutletsanddisconnectallcablesthatareconnectedtothecomputer.

2.Placeasoft,cleantowelorclothonthedeskorotherflatsurface.Holdthesidesofyourcomputerand
gentlylayitdownsothatthescreenisagainstthesurfaceandthecoverisfacingup.

3.Removethecomputercover.See“Removingthecomputercover”onpage76.

4.Locatethemicroprocessorfaninthecomputer.See“LocatingmajorFRUsandCRUs”onpage68.

5.Removethemicroprocessorboardshield.See“Removingandreinstallingthesystemboardshield”
onpage85.

6.RemovetherearI/Oassembly.See“ReplacingtherearI/Oassembly”onpage86.

7.RemovetheVESAmountbracket.See“RemovingtheVESAmountbracket”onpage88.

8.Notetheroutingofthemicroprocessorfancable,andthendisconnectthemicroprocessorfancable
fromthesystemboard.See“Locatingpartsonthesystemboard”onpage71.

9.Removethetwoscrews1thatsecurethemicroprocessorfantothemainbracket.Then,liftthe
microprocessorfanoffthemainbracket.

Figure26.Removingthemicroprocessorfan

10.Toreinstallthemicroprocessorfan,positionthenewmicroprocessorfanonthemainbracketandalign
thescrewholesinthenewmicroprocessorfanwiththoseinthemainbracket.Reinstallthetwoscrews
thatsecurethemicroprocessorfantothemainbracket.

11.Connectthenewmicroprocessorfancabletothesystemboard.See“Locatingpartsonthesystem
board”onpage71.

12.ReinstalltheVESAmountbracket.See“RemovingtheVESAmountbracket”onpage88.

13.ReinstalltherearI/Oassembly.See“ReplacingtherearI/Oassembly”onpage86.

14.Reinstallthesystemboardshield.See“Removingandreinstallingthesystemboardshield”onpage85.

15.Reinstallthecomputercover.See“Removingthecomputercover”onpage76.

16.Goto“Completingthepartsreplacement”onpage111.

Chapter9.ReplacingFRUs91

Replacingtheheatsinkassembly

Attention:DonotopenyourcomputerorattemptanyrepairbeforereadingandunderstandingtheChapter

2“Safetyinformation”onpage3.

Thissectionprovidesinstructionsonhowtoreplacetheheatsinkassembly.

CAUTION:

Theheatsinkassemblymightbeveryhot.Beforeyouopenthecomputercover,turnoffthecomputer
andwaitseveralminutesuntilthecomputeriscool.

Toreplacetheheatsinkassembly,dothefollowing:

1.Removeallmediafromthedrivesandturnoffallattacheddevicesandthecomputer.Then,disconnect
allpowercordsfromelectricaloutletsanddisconnectallcablesthatareconnectedtothecomputer.

2.Placeasoft,cleantowelorclothonthedeskorotherflatsurface.Holdthesidesofyourcomputerand
gentlylayitdownsothatthescreenisagainstthesurfaceandthecoverisfacingup.

3.Removethecomputercover.See“Removingthecomputercover”onpage76.

4.Locatetheheatsinkassemblyonthesystemboard.See“LocatingmajorFRUsandCRUs”onpage68.

5.Removethesystemboardshield.See“Removingandreinstallingthesystemboardshield”onpage85.

92ThinkCentreE73zHardwareMaintenanceManual

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”onpage93.Installthescrew5tosecuretheheatsink
assemblytothecomputer.

10.Reinstallthesystemboardshield.See“Removingandreinstallingthesystemboardshield”onpage85.

11.Goto“Completingthepartsreplacement”onpage111.

Replacingthemicroprocessor

Attention:DonotopenyourcomputerorattemptanyrepairbeforereadingandunderstandingtheChapter

2“Safetyinformation”onpage3.

Chapter9.ReplacingFRUs93

Thissectionprovidesinstructionsonhowtoreplacethemicroprocessor.

CAUTION:

Theheatsinkassemblyandmicroprocessormightbeveryhot.Beforeyouopenthecomputercover,
turnoffthecomputerandwaitseveralminutesuntilthecomputeriscool.

Toreplacethemicroprocessor,dothefollowing:

1.Removeallmediafromthedrivesandturnoffallattacheddevicesandthecomputer.Then,disconnect
allpowercordsfromelectricaloutletsanddisconnectallcablesthatareconnectedtothecomputer.

2.Placeasoft,cleantowelorclothonthedeskorotherflatsurface.Holdthesidesofyourcomputerand
gentlylayitdownsothatthescreenisagainstthesurfaceandthecoverisfacingup.

3.Removethecomputercover.See“Removingthecomputercover”onpage76.

4.Locatethemicroprocessoronthesystemboard.See“LocatingmajorFRUsandCRUs”onpage68.

5.Removethesystemboardshield.See“Removingandreinstallingthesystemboardshield”onpage85.

6.Removetheheatsinkassemblytogainaccesstothemicroprocessor.See“Replacingtheheatsink
assembly”onpage92.

7.Pressthesmallhandle1toopentheretainer2toaccessthemicroprocessor3.

Figure28.Openingtheretainertoaccessthemicroprocessor

94ThinkCentreE73zHardwareMaintenanceManual

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,oralignthesmalltriangle1ononecornerofthenewmicroprocessorwiththe
correspondingbeveledcornerofthemicroprocessorsocket.

Chapter9.ReplacingFRUs95

Figure31.Installingthemicroprocessor

11.Lowerthenewmicroprocessorstraightdownintothemicroprocessorsocketonthesystemboard.

12.Closethemicroprocessorretainerandlockitintopositionwiththesmallhandletosecurethenew
microprocessorinthesocket.

13.Reinstalltheheatsinkassembly.See“Replacingtheheatsinkassembly”onpage92.

14.Reinstallthesystemboardshield.See“Removingandreinstallingthesystemboardshield”onpage85.

15.Goto“Completingthepartsreplacement”onpage111.

Replacingthecardreader

Attention:DonotopenyourcomputerorattemptanyrepairbeforereadingandunderstandingtheChapter

2“Safetyinformation”onpage3.

Thissectionprovidesinstructionsonhowtoreplacethecardreader.

Note:Thecardreaderisavailableonlyinsomemodels.

Toreplacethecardreader,dothefollowing:

1.Removeallmediafromthedrivesandturnoffallattacheddevicesandthecomputer.Then,disconnect
allpowercordsfromelectricaloutletsanddisconnectallcablesthatareconnectedtothecomputer.

2.Placeasoft,cleantowelorclothonthedeskorotherflatsurface.Holdthesidesofyourcomputerand
gentlylayitdownsothatthescreenisagainstthesurfaceandthecoverisfacingup.

3.Removethecomputercover.See“Removingthecomputercover”onpage76.

4.Locatethecardreaderinthecomputer.See“LocatingmajorFRUsandCRUs”onpage68.

5.Removethesystemboardshield.See“Removingandreinstallingthesystemboardshield”onpage85.

6.Disconnectthecardreadercablefromthecardreader.

96ThinkCentreE73zHardwareMaintenanceManual