Lenovo ThinkCentre M93z Hardware Maintenance Manual [en, ar, bg, br, cs, da, de, el, es, fi, fr, he, hr, hu, id, it, ja, ko, nl, pl, pt, ro, ru, sk, sl, sr, sv, th, tr, uk, zc, zh]

ThinkCentreM93z
HardwareMaintenanceManual

MachineTypes:10AC,10AD,10AEand10AF

Note:Beforeusingthisinformationandtheproductitsupports,besuretoreadandunderstandChapter2

“Safetyinformation”onpage3andAppendixA“Notices”onpage133.

SecondEdition(June2014)
©CopyrightLenovo2013,2014.

LIMITEDANDRESTRICTEDRIGHTSNOTICE:IfdataorsoftwareisdeliveredpursuantaGeneralServicesAdministration
“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

Tip-overhazardpreventionnotice........6

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

Chapter3.Generalinformation....29

Specifications...............29

Lenovoprograms.............30

AccessingLenovoprogramsontheWindows

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

AccessingLenovoprogramsontheWindows

8orWindows8.1operatingsystem....31

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

Chapter4.Generalcheckout.....33

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

Chapter5.Troubleshootingand

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

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

AccessingControlPanelontheWindows8

operatingsystem..............35

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

Troubleshooting..............36

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

CDproblems.............38

DVDproblems.............39

Intermittentproblems..........40

Harddiskdriveproblems.........41

Keyboard,mouse,orpointingdevice

problems...............41

Monitorproblems............43

Networkingproblems..........45

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

HardDiskPassword...........56

Setting,changing,anddeletingapassword.56
Erasinglostorforgottenpasswords(clearing

CMOS)................57

Enablingordisablingadevice........57

Selectingastartupdevice..........58

Selectingatemporarystartupdevice....58

Selectingorchangingthestartupdevice

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

EnablingErPLPScompliancemode......58

ICEperformancemode...........59

ICEthermalalert..............59

ChangingtheBIOSsettingsbeforeinstallinganew

operatingsystem..............60

ExitingtheSetupUtilityprogram.......60

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

Usingyourcomputerinmonitormode...68

AccessingtheOnScreenDisplay(OSD)...68
Locatingconnectorsontherearofyour

computer.................70

LocatingmajorFRUsandCRUs........71

LookingupFRUinformation.........74

Locatingpartsonthesystemboard......74

Adjustingtheframestand..........76

Adjustingthemonitorstand.........77

Machinetypeandmodellabel........79

©CopyrightLenovo2013,2014

i

Chapter9.ReplacingFRUs......81

Handlingstatic-sensitivedevices.......81

Installingorreplacinghardware........81

Installingexternaloptions........81

Installingthemonitorstand........82

Removingthecomputercover.......84

Removingandreinstallingtheframefoot..85
RemovingandreinstallingtherearI/O

assembly...............86

Installingorreplacingamemorymodule...87

Replacingtheharddiskdrive.......88

Replacingtheopticaldrive........90

Replacingtheconverterboard.......91

Replacingtheheatsink.........92

Replacingthemicroprocessor.......94

Replacingtheinternalspeakers......97

Replacingthethermalsensor.......98

Replacingthecoverpresenceswitch(also

calledintrusionswitch)..........100

Replacingtheintegratedcamera......103

ReplacingtheWiFicard.........104

Replacingtheambientlightsensor.....106

Replacingthecardreader........107

ReplacingthemSATAsolid-statedriveormini

PCIExpressx1card...........108

ReplacingtheExpressCard........110

Replacingtheheatsinkandfanassemblyfor

GPU.................111

ReplacingtherearPS/2connectorsandserial

portassembly.............112

Replacingthebattery..........114

Replacingthepowersupplyassembly...115

Replacingthemicroprocessorfan.....116

ReplacingtheLCDpanel.........118

Replacingthesystemboard.......119

Replacingthetouchpanelcontrolboards..122
Replacingthepowerswitchandcontrolbutton

board................123

ReplacingtheWiFiantennas.......124

Completingthepartsreplacement.....126

Chapter10.AdditionalService

Information.............129

Securityfeatures..............129

HardwarecontrolledPasswords......129

Operatingsystempassword.......129

Vitalproductdata............129

BIOSlevels................129

Flashupdateprocedures..........129

Updating(flashing)theBIOSfromadisc....130

Updating(flashing)theBIOSfromyouroperating

system..................131

RecoveringfromaPOST/BIOSupdatefailure..131

Powermanagement............132

Advancedconfigurationandpowerinterface

(ACPI)BIOS..............132

AutomaticPower-onfeatures.......132

AppendixA.Notices.........133

Televisionoutputnotice...........134

EuropeanconformanceCEmark.......134

Trademarks................134

Index.................135

iiThinkCentreM93zHardwareMaintenanceManual

Chapter1.Aboutthismanual

ThismanualprovidesserviceandreferenceinformationforThinkCentre®computerslistedonthefrontcover.
ThismanualisintendedonlyfortrainedservicepersonnelwhoarefamiliarwithLenovo

BeforeservicingaLenovocomputerproduct,besuretoread“ImportantSafetyInformation”onpage1.

Chapter7“Symptom-to-FRUindex”onpage61

arenotspecifictoanymachinetype.ThesechaptersareapplicabletoallThinkCentrecomputers.

129

FormajorFRUlocationsandCustomerReplaceableUnit(CRU)identification,seeChapter8“Locations”
onpage67.

ForFRUreplacementinstructions,seeChapter9“ReplacingFRUs”onpage81

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

andChapter10“AdditionalServiceInformation”onpage

.

®

computerproducts.

ImportantSafetyInformation

Besuretoreadallcautionanddangerstatementsinthisbookbeforeperforminganyoftheinstructions.

VeuillezliretouteslesconsignesdetypeDANGERetATTENTIONduprésentdocumentavantd'exécuter
lesinstructions.

LesenSieunbedingtalleHinweisevomT yp"ACHTUNG"oder"VORSICHT"indieserDokumentation,bevor
SieirgendwelcheVorgängedurchführen

LeggereleistruzioniintrodottedaATTENZIONEePERICOLOpresentinelmanualeprimadieseguireuna
qualsiasidelleistruzioni

Certifique-sedelertodasasinstruçõesdecuidadoeperigonestemanualantesdeexecutarqualquer
umadasinstruções

Esimportantequeleatodaslasdeclaracionesdeprecauciónydepeligrodeestemanualantesdeseguir
lasinstrucciones.

©CopyrightLenovo2013,2014

1

2ThinkCentreM93zHardwareMaintenanceManual

Chapter2.Safetyinformation

Thischaptercontainsthesafetyinformationthatyouneedtobefamiliarwithbeforeservicingacomputer.

Generalsafety

Followtheserulestoensuregeneralsafety:

•Observegoodhousekeepingintheareaofthemachinesduringandaftermaintenance.

•Whenliftinganyheavyobject:

1.Ensureyoucanstandsafelywithoutslipping.

2.Distributetheweightoftheobjectequallybetweenyourfeet.

3.Useaslowliftingforce.Nevermovesuddenlyortwistwhenyouattempttolift.

4.Liftbystandingorbypushingupwithyourlegmuscles;thisactionremovesthestrainfromthe
musclesinyourback.

Donotattempttoliftanyobjectsthatweighmorethan16kg(35lb)orobjectsthatyouthinkare
tooheavyforyou.

•Donotperformanyactionthatcauseshazardstothecustomer,orthatmakestheequipmentunsafe.

•Beforeyoustartthemachine,ensurethatotherservicerepresentativesandthecustomer'spersonnelare
notinahazardousposition.

•Placeremovedcoversandotherpartsinasafeplace,awayfromallpersonnel,whileyouareservicing
themachine.

•Keepyourtoolcaseawayfromwalkareassothatotherpeoplewillnottripoverit.

•Donotwearlooseclothingthatcanbetrappedinthemovingpartsofamachine.Ensurethatyoursleeves
arefastenedorrolledupaboveyourelbows.Ifyourhairislong,fastenit.

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

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

•Wearsafetyglasseswhenyouare:hammering,drilling,soldering,cuttingwire,attachingsprings,using
solvents,orworkinginanyotherconditionsthatmightbehazardoustoyoureyes.

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

•Reinstallallcoverscorrectlybeforereturningthemachinetothecustomer.

Electricalsafety

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

Observethefollowingruleswhenworkingonelectricalequipment.

©CopyrightLenovo2013,2014

3

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.
–Sendanotherpersontogetmedicalaid.

4ThinkCentreM93zHardwareMaintenanceManual

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.

•Avoidcontactwithotherpeoplewhilehandlingthepart.

Chapter2.Safetyinformation5

•Wearagroundedwriststrapagainstyourskintoeliminatestaticonyourbody.

•Preventthepartfromtouchingyourclothing.Mostclothingisinsulativeandretainsachargeeven
whenyouarewearingawriststrap.

•Usetheblacksideofagroundedworkmattoprovideastatic-freeworksurface.Thematisespecially
usefulwhenhandlingESD-sensitivedevices.

•Selectagroundingsystem,suchasthoselistedbelow,toprovideprotectionthatmeetsthespecific
servicerequirement.

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

–UseanESDcommongroundorreferencepointwhenworkingonadouble-insulatedor

battery-operatedsystem.Youcanusecoaxorconnector-outsideshellsonthesesystems.

–Usetheroundground-prongoftheacplugonac-operatedcomputers.

Groundingrequirements

Electricalgroundingofthecomputerisrequiredforoperatorsafetyandcorrectsystemfunction.Proper
groundingoftheelectricaloutletcanbeverifiedbyacertifiedelectrician.

Tip-overhazardpreventionnotice

•Placethecomputeronasturdyandlowbase,oranchorthefurnitureandpositionthecomputeras
farbackonthefurnitureaspossible.

•Keepremotecontrols,toys,andotheritemsthatmightattractchildrenoffthecomputer.

•Keepthecomputer,cables,andcordsoutofthereachofchildren.

•Supervisechildreninroomswherethesesafetytipshavenotbeenfollowed.

Safetynotices(multi-lingualtranslations)

Thecautionanddangersafetynoticesinthissectionareprovidedinthefollowinglanguages:

•English

•Arabic

•Brazilian/Portuguese

•Chinese(simplified)

•Chinese(traditional)

•French

•German

•Hebrew

•Italian

•Korean

•Spanish

6ThinkCentreM93zHardwareMaintenanceManual

DANGER

Electricalcurrentfrompower,telephoneandcommunicationcablesishazardous.

Toavoidashockhazard:

•Donotconnectordisconnectanycablesorperforminstallation,maintenance,orreconfiguration

ofthisproductduringanelectricalstorm.

•Connectallpowercordstoaproperlywiredandgroundedelectricaloutlet.

•Connecttoproperlywiredoutletsanyequipmentthatwillbeattachedtothisproduct.

•Whenpossible,useonehandonlytoconnectordisconnectsignalcables.

•Neverturnonanyequipmentwhenthereisevidenceoffire,water,orstructuraldamage.

•Disconnecttheattachedpowercords,telecommunicationssystems,networks,andmodems

beforeyouopenthedevicecovers,unlessinstructedotherwiseintheinstallationandconfiguration
procedures.

•Connectanddisconnectcablesasdescribedinthefollowingtableswheninstalling,moving,or

openingcoversonthisproductorattacheddevices.

ToConnectToDisconnect

1.TurneverythingOFF.

2.First,attachallcablestodevices.

3.Attachsignalcablestoconnectors.

4.Attachpowercordstooutlet.

5.TurndeviceON.

1.TurneverythingOFF.

2.First,removepowercordsfromoutlet.

3.Removesignalcablesfromconnectors.

4.Removeallcablesfromdevices.

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

•Throworimmerseintowater

•Heattomorethan100°C(212°F)

•Repairordisassemble

Disposeofthebatteryasrequiredbylocalordinancesorregulations.

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

•Donotremovethecovers.Removingthecoversofthelaserproductcouldresultinexposureto
hazardouslaserradiation.Therearenoserviceablepartsinsidethedevice.

•Useofcontrolsoradjustmentsorperformanceofproceduresotherthanthosespecifiedherein
mightresultinhazardousradiationexposure.

Chapter2.Safetyinformation7

DANGER

1

2

SomelaserproductscontainanembeddedClass3AorClass3Blaserdiode.Notethefollowing:

Laserradiationwhenopen.Donotstareintothebeam,donotviewdirectlywithoptical
instruments,andavoiddirectexposuretothebeam.

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

CAUTION:
Usesafepracticeswhenlifting.

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

8ThinkCentreM93zHardwareMaintenanceManual

Chapter2.Safetyinformation9

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

1

2

PERIGO

Acorrenteelétricaprovenientedecabosdealimentação,detelefoneedecomunicaçõeséperigosa.

10ThinkCentreM93zHardwareMaintenanceManual

Paraevitarriscodechoqueelétrico:

•Nãoconectenemdesconectenenhumcaboouexecuteinstalação,manutençãooureconfiguração
desteprodutoduranteumatempestadecomraios.

•Conectetodososcabosdealimentaçãoatomadaselétricascorretamenteinstaladaseaterradas.

•Todoequipamentoqueforconectadoaesteprodutodeveserconectadoatomadascorretamente
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.

12ThinkCentreM93zHardwareMaintenanceManual

Chapter2.Safetyinformation13

1

2

14ThinkCentreM93zHardwareMaintenanceManual

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.

16ThinkCentreM93zHardwareMaintenanceManual

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-,T elefon-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:

EineverbrauchteLithiumbatterienurdurcheineBatteriemitderTeilenummer45C1566odereine
gleichwertige,vomHerstellerempfohleneBatterieersetzen.EnthältdasSystemeinModulmiteiner
Lithiumbatterie,diesesnurdurcheinModuldesselbenTypsundvondemselbenHerstellerersetzen.
DieBatterieenthältLithiumundkannbeiunsachgemäßerVerwendung,HandhabungoderEntsorgung
explodieren.

DieBatterienicht:

•mitWasserinBerührungbringen.

18ThinkCentreM93zHardwareMaintenanceManual

•über100Cerhitzen.

•reparierenoderzerlegen.

DieörtlichenBestimmungenfürdieEntsorgungvonSondermüllbeachten.

ACHTUNG:

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

•DieAbdeckungennichtentfernen.DurchEntfernenderAbdeckungendesLasergerätskönnen

gefährlicheLaserstrahlungenfreigesetztwerden.DasGerätenthältkeinezuwartendenT eile.

•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

20ThinkCentreM93zHardwareMaintenanceManual

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).

22ThinkCentreM93zHardwareMaintenanceManual

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.T enerpresentequantosegue:

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

24ThinkCentreM93zHardwareMaintenanceManual

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

26ThinkCentreM93zHardwareMaintenanceManual

Algunosproductoslásertienenincorporadoundiodoláserdeclase3Aoclase3B.Tengaencuentalo

1

2

siguiente:

Cuandoseabre,quedaexpuestoaradiaciónláser.Nomiredirectamentealrayoláser,nisiquieracon
instrumentosópticos,yeviteexponersedirectamentealrayoláser.

≥18kg≥32kg≥55kg

PRECAUCIÓN:

Adopteprocedimientossegurosallevantarelequipo.

PRECAUCIÓN:

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

Chapter2.Safetyinformation27

28ThinkCentreM93zHardwareMaintenanceManual

Chapter3.Generalinformation

Thischapterprovidesgeneralinformationthatappliestoallmachinetypessupportedbythispublication.

Specifications

Thissectionliststhephysicalspecificationsforyourcomputer.

Dimensions(nostand)

•Touchmodels:

Width:568mm(22.36inches)
Height:401mm(15.79inches)
Depth:68.5mm(2.70inches)

•Non-touchmodels:

Width:568mm(22.36inches)
Height:401mm(15.79inches)
Depth:67mm(2.64inches)

Weight(nostand)

•Touchmodels:

Maximumconfigurationasshipped:10.14kg(23.35lb)

•Non-touchmodels:

Maximumconfigurationasshipped:8.6kg(18.96lb)

Environment

•Airtemperature:

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

•Humidity:

Operating:20%to80%(non-condensing)
Storage:20%to90%(non-condensing)

•Altitude:

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

Electricalinput

•Inputvoltage:
–Lowrange:

Minimum:100Vac
Maximum:127Vac
Inputfrequencyrange:50or60Hz

–Highrange:

Minimum:200Vac
Maximum:240Vac

©CopyrightLenovo2013,2014

29

Inputfrequencyrange:50or60Hz

Lenovoprograms

YourcomputercomeswithLenovoprogramstohelpyouworkmoreeasilyandsecurely.Dependingonthe
Microsoft

®

Windows

®

operatingsystempreinstalled,theprogramsmightvary.

AccessingLenovoprogramsontheWindows7operatingsystem

YoucanaccessLenovoprogramsontheMicrosoftWindows7operatingsystemthroughWindowsSearch
orfromControlPanel.TheiconnamedisplayedinthesearchresultorControlPanelmightbedifferentfrom
theprogramname.Y oucanfindtheprogrambyitsprogramnameoriconnameasshownintheLenovo
programsavailableontheWindows7operatingsystemtable.

Note:Ifyoudonotfindtheprogramyouneed,opentheLenovoThinkVantage
dimmediconfortheprogram.Thendouble-clicktheicontoinstalltheprogram.

ToaccessLenovoprogramsthroughWindowsSearch,dothefollowing:

1.ClicktheStartbuttonandthentypetheprogramnameortheiconnameintothesearchbox.

2.Locatetheprogrambytheprogramnameortheiconnameandthenclicktheprogramtolaunchit.

ToaccessLenovoprogramsfromControlPanel,dothefollowing:

Note:SomeLenovoprogramsmightnotbedisplayedinControlPanel.T ofindtheseprograms,use

WindowsSearch.

1.ClickStart➙ControlPanel.ChangetheviewofControlPanelfromCategorytoLargeiconsorSmall
icons.

2.Locatetheprogrambytheiconnameandthenclicktheprogramtolaunchit.

®

Toolsprogramtofindthe

ThefollowingtableliststheprogramsavailableontheWindows7operatingsystem.

Note:Dependingonyourcomputermodel,someoftheLenovoprogramsmightnotbeavailable.

Table1.LenovoprogramsavailableontheWindows7operatingsystem

ProgramnameIconname

CommunicationsUtilityLenovo-WebConferencing
FingerprintManagerProor

ThinkVantageFingerprintSoftware
LenovoBluetoothLockLenovoBluetoothLock
LenovoReachLenovoReach
LenovoSHAREitLenovoSHAREit
LenovoSolutionCenterLenovo-SystemHealthandDiagnostics
LenovoThinkVantagetoolsLenovoThinkvantagetools
PasswordManagerLenovo-PasswordVault
PCCloudManagerPCCloudManager
PowerManager
RecoveryMedia
RescueandRecovery

®

Lenovo-FingerprintManagerProorLenovo-FingerprintReader

Lenovo-PowerControls
Lenovo-FactoryRecoveryDisksorCreateRecoveryMedia
Lenovo-EnhancedBackupandRestore

30ThinkCentreM93zHardwareMaintenanceManual

Table1.LenovoprogramsavailableontheWindows7operatingsystem(continued)

ProgramnameIconname

SystemUpdate
ViewManagementUtilityLenovo-ViewManagementUtility

Lenovo-UpdateandDrivers

AccessingLenovoprogramsontheWindows8orWindows8.1operating system

IfyourcomputerispreinstalledwiththeMicrosoftWindows8orMicrosoftWindows8.1operatingsystem,
youcanaccessLenovoprogramsbydoingoneofthefollowing:

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

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

bottom-leftcornerofthescreentogototheAppsscreen.Findthedesiredprogramintheappslistor
searchforitinthesearchboxinthetop-rightcornerofthescreen.

Dependingonyourcomputermodel,yourcomputersupportssomeofthefollowingLenovoprograms:

•FingerprintManagerProorThinkVantageFingerprintSoftware

•LenovoBluetoothLock

•LenovoCompanion

•LenovoQuickCast

•LenovoReach

•LenovoSettings

•LenovoSolutionCenter

•LenovoSupport

•PasswordManager

•PCCloudManager

•SystemUpdate

togototheStartscreen.Clicka

LenovoSupportWebsite

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

ThisWebsiteisupdatedwiththelatestsupportinformationsuchasthefollowing:

•Driversandsoftware

•Diagnosticsolutions

•Productandservicewarranty

•Productandpartsdetails

•Userguidesandmanuals

•Knowledgebaseandfrequentlyaskedquestions

Chapter3.Generalinformation31

32ThinkCentreM93zHardwareMaintenanceManual

Chapter4.Generalcheckout

Attention

Thedrivesinthecomputeryouareservicingmighthavebeenrearrangedorthedrivestartupsequencemight
havebeenchanged.Beextremelycarefulduringwriteoperationssuchascopying,saving,orformatting.
Dataorprogramscanbeoverwrittenifyouselectanincorrectdrive.

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

BeforereplacingaFRU,ensurethatthelatestlevelofBIOSisinstalledonthesystem.Adown-levelBIOS
mightcausefalseerrorsandunnecessaryreplacementofthesystemboard.Formoreinformationonhowto
determineandobtainthelatestlevelBIOS,see“BIOSlevels”onpage129

Usethefollowingproceduretohelpdeterminethecauseofaproblem:

1.Power-offthecomputerandallexternaldevices.

2.Checkallcablesandpowercords.

3.Setalldisplaycontrolstothemiddleposition.

4.Power-onallexternaldevices.

5.Power-onthecomputer.

•Lookfordisplayederrorcodes

•Listenforbeepcodes

•Lookforreadableinstructionsoramainmenuonthedisplay.
Ifyoudidnotreceivethecorrectresponse,proceedtostep6.

Ifyoudoreceivethecorrectresponse,proceedtostep7.

6.Lookatthefollowingconditionsandfollowtheinstructions:

.

•IfyouhearbeepcodesduringPOST,goto“Beepsymptoms”onpage61.

•IfthecomputerdisplaysaPOSTerror,goto“POSTerrorcodes”onpage62.

•Ifthecomputerhangsandnoerrorisdisplayed,turnoffthecomputerandthepower.Then,turnthe
powerandthecomputerbackon,continueatstep7.

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
–Typeandversionlevel

•Hardwareconfiguration
–Print(printscreen)configurationcurrentlyinuse

–BIOSlevel

•Operatingsystemsoftware
–Typeandversionlevel

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.

34ThinkCentreM93zHardwareMaintenanceManual

Chapter5.Troubleshootinganddiagnostics

Thischapterdescribessomebasictroubleshootinganddiagnosticprograms.Ifyourcomputerproblemis
notdescribedhere,see“LenovoSupportWebsite”onpage31foradditionaltroubleshootingresources.

Basictroubleshooting

Thefollowingtableprovidesinformationtohelpyoutroubleshootyourcomputerproblems.

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

SymptomAction

Thecomputerdoesnotstart
whenyoupressthepower
switch.

Thekeyboarddoesnotwork.

Themousedoesnotwork.

Theoperatingsystemdoesnot
start.

Thecomputerbeepsmultiple
timesbeforetheoperating
systemstarts.

Verifythat:

•Thepowercordiscorrectlyconnectedtotherearofthecomputerandtoa
workingelectricaloutlet.

•Ifyourcomputerhasasecondarypowerswitchontherearofthecomputer,
makesurethatitisswitchedon.

•Thepowerindicatoronthefrontofthecomputerison.

•Thecomputervoltagematchesthevoltageavailableattheelectricaloutletfor
yourcountryorregion.

Verifythat:

•Thecomputeristurnedon.

•ThekeyboardissecurelyconnectedtoaUSBconnectororaPS2connector
onthecomputer.

•Nokeysarestuck.

Verifythat:

•Thecomputeristurnedon.

•ThemouseissecurelyconnectedtoaUSBconnectororaPS2connectoron
thecomputer.

•Themouseisclean.

Verifythat:

•Thestartupsequenceincludesthedevicewheretheoperatingsystemresides.
Usually,theoperatingsystemisontheharddiskdrive.Formoreinformation,
see“Selectingastartupdevice”onpage58

Verifythatnokeysarestuck.

.

AccessingControlPanelontheWindows8operatingsystem

OntheWindowsoperatingsystem,youcanviewandchangecomputersettingsthroughControlPanel.To
accessControlPanelontheWindows8operatingsystem,dooneofthefollowing:

•Fromthedesktop

1.Movethecursortothetop-rightorbottom-rightcornerofthescreentodisplaythecharms.

©CopyrightLenovo2013,2014

35

2.ClickSettings.

3.ClickControlPanel.

•FromtheStartscreen

1.Movethecursortothetop-rightorbottom-rightcornerofthescreentodisplaythecharms.

2.ClickSearch.

3.OntheAppsscreen,scrolltotherightside,andclickControlPanelintheWindowsSystemsection.

Troubleshootingprocedure

Usethefollowingprocedureasastartingpointfordiagnosingproblemsyouareexperiencingwithyour
computer:

1.Verifythatthecablesforallattacheddevicesareconnectedcorrectlyandsecurely.

2.Verifythatallattacheddevicesthatrequireacpowerareconnectedtoproperlygrounded,functioning
electricaloutlets.

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

4.Gotothe“Troubleshooting”onpage36andfollowtheinstructionsforthetypeofproblemyouare
experiencing.IftheTroubleshootinginformationdoesnothelpyouresolveaproblem,continuewiththe
nextstep.

5.T ryusingapreviouslycapturedconfigurationtoseeifarecentchangetohardwareorsoftwaresettings
hascausedaproblem.Beforerestoringapreviousconfiguration,captureyourcurrentconfigurationin
casetheolderconfigurationsettingsdonotsolvetheproblemorhaveadverseaffects.Torestorea
capturedconfiguration,dothefollowing:

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

Protection➙SystemRestore.

•ForWindows8:OpenControlPanel,andthenclickSystemandSecurity➙System➙System

Protection➙SystemRestore.

Ifthisdoesnotcorrecttheproblem,continuewiththenextstep.

6.Runthediagnosticprogram.See“LenovoSolutionCenter”onpage53formoreinformation.

•Ifthediagnosticprogramdetectsahardwarefailure,contacttheLenovoCustomerSupportCenter.

See“LenovoSupportWebsite”onpage31formoreinformation.

•Ifyouareunabletorunthediagnosticprogram,contacttheLenovoCustomerSupportCenter.See

“LenovoSupportWebsite”onpage31formoreinformation.

•Ifthediagnosticprogramdoesnotdetectahardwarefailure,continuewiththenextstep.

7.Useanantivirusprogramtoseeifyourcomputerhasbeeninfectedbyavirus.Iftheprogramdetectsa
virus,removethevirus.

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

Troubleshooting

Usethetroubleshootinginformationtofindsolutionstoproblemsthathavedefinitesymptoms.

Ifthesymptomyourcomputerisexperiencingoccurredimmediatelyafteryouinstalledanewhardware
optionornewsoftware,dothefollowingbeforereferringtothetroubleshootinginformation:

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

36ThinkCentreM93zHardwareMaintenanceManual

2.Runthediagnosticprogramstoensureyourcomputerisoperatingcorrectly.

3.Reinstallthenewhardwareoptionorsoftwarefollowingthemanufacturer'sinstructions.

Selecttheproblemyourcomputerisexperiencingfromthefollowinglist:

•“Audioproblems”onpage37

•“CDproblems”onpage38

•“DVDproblems”onpage39

•“Intermittentproblems”onpage40

•“Harddiskdriveproblems”onpage41

•“Keyboard,mouse,orpointingdeviceproblems”onpage41

•“Networkingproblems”onpage45

•“Optionproblems”onpage48

•“Performanceandlockupproblems”onpage49

•“Printerproblems”onpage51

•“Serialportproblems”onpage51

•“Softwareproblems”onpage52

•“USBproblems”onpage53

Audioproblems

Selectyoursymptomfromthefollowinglist:

•“NoaudioinWindows”onpage37

•“AnaudiodiscorAutoPlay-enableddiscdoesnotautomaticallyplaywhenitisinsertedintoadrive”
onpage38

•“Soundcomesfromoneexternalspeakeronly”onpage38

•“NoaudioinDOSapplicationsorgames”onpage38

NoaudioinWindows

Symptom:NoaudioinWindows

Actions:

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

•Ifyourexternalspeakershaveavolumecontrol,verifythatthevolumecontrolisnotsettoolow.

•Double-clickthespeakericonintheWindowsnotificationarea.Amastervolume-controlwindowopens.
VerifythattheMutesettingsarenotcheckedandnoneofthevolumesettingsissettoolow.

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

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

•MakesurethattheprogramyouarerunningisdesignedforuseintheWindowsoperatingsystem.If
theprogramisdesignedtoruninDOS,theprogramdoesnotusetheWindowssoundfeatureandmust
beconfiguredtouseSoundBlasterProorSoundBlasteremulation.

Chapter5.Troubleshootinganddiagnostics37

•Verifythattheaudiodevicedriversarecorrectlyinstalled.SeeWindowshelpsystemformoreinformation.

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

AnaudiodiscorAutoPlay-enableddiscdoesnotautomaticallyplaywhenitis
insertedintoadrive

Symptom:AnaudiodiscorAutoPlay-enableddiscdoesnotautomaticallyplaywhenitisinsertedintoadrive

Action:See“CDproblems”onpage38.

Soundcomesfromoneexternalspeakeronly

Symptom:Soundcomesfromoneexternalspeakeronly.

Actions:

•Ensurethatthespeakercableisinsertedcompletelyintotheconnectoronthecomputer.

•Makesurethecablethatattachestheleftspeakertotherightspeakerissecurelyconnected.

•Double-clickthespeakericonintheWindowsnotificationarea.Amastervolume-controlwindowopens.
VerifythattheBalancesettingsaresetcorrectly.

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

NoaudioinDOSapplicationsorgames

Symptom:NoaudioinDOSapplicationsorgames

Actions:

•MakesuretheDOSapplicationorgameisconfiguredtouseSoundBlasterProorSoundBlaster
emulation.Refertothedocumentationthatcomeswiththeapplicationorgameforinstructionson
settingsound-cardsettings.

•Iftheseactionsdonotcorrecttheproblem,runthediagnosticprograms(see“LenovoSolutionCenter”on
page53

forinstructions).Ifyouneedtechnicalassistance,see“LenovoSupportWebsite”onpage31.

CDproblems

Selectyoursymptomfromthefollowinglist:

•“AnaudiodiscorAutoPlay-enableddiscdoesnotautomaticallyplaywhenitisinsertedintoaCD
drive”onpage38

•“ACDorDVDdoesnotwork”onpage39

•“Unabletouseastartable(bootable)recoverymedium,suchastheProductRecoveryCD,tostart
yourcomputer”onpage39

AnaudiodiscorAutoPlay-enableddiscdoesnotautomaticallyplaywhenitis
insertedintoaCDdrive

Symptom:AnaudiodiscorAutoPlay-enableddiscdoesnotautomaticallyplaywhenitisinsertedinto
aCDdrive.

Actions:

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

38ThinkCentreM93zHardwareMaintenanceManual

•IfyouareusingtheWindows7operatingsystem,followtheactionfor“ACDorDVDdoesnotwork”
onpage39

.

Ifthisdoesnotcorrecttheproblem,followtheactionfor“ACDorDVDdoesnotwork”onpage39

.

ACDorDVDdoesnotwork

Symptom:ACDorDVDdoesnotwork.

Actions:

•Verifythatthediscisinsertedcorrectly,withitslabelup.

•Makesurethatthediscyouareusingisclean.T oremovedustorfingerprints,wipethedisccleanwitha
softclothfromthecentertotheoutside.Wipingadiscinacircularmotionmightcauselossofdata.

•Verifythatthediscyouareusingisnotscratchedordamaged.Tryinsertinganotherdiscthatyouknow
isgood.Ifyoucannotreadfromaknown-gooddisc,youmighthaveaproblemwithyourCDorDVD
driveorthecablingtoyourCDorDVDdrive.Makesurethatthepowercableandsignalcableare
securelyconnectedtothedrive.

Unabletouseastartable(bootable)recoverymedium,suchastheProductRecovery
CD,tostartyourcomputer

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

Action:MakesurethattheCDorDVDdriveisinthestartupsequencebeforetheharddiskdrive.Refer
toyour“Selectingorchangingthestartupdevicesequence”onpage58
changingthestartupsequence.Notethatonsomemodelsthestartupsequenceispermanentlysetand
cannotbechanged.

forinformationonviewingand

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

DVDproblems

Selectyoursymptomfromthefollowinglist:

•“BlackscreeninsteadofDVDvideo”onpage39

•“DVDmoviewillnotplay”onpage40

•“NoaudioorintermittentaudiowhileplayingDVDmovie”onpage40

•“Playbackisverysloworchoppy”onpage40

•“Invaliddiscornodiscfoundmessage”onpage40

BlackscreeninsteadofDVDvideo

Symptom:BlackscreeninsteadofDVDvideo

Actions:

•RestarttheDVDplayerprogram.

•Closeanyopenfiles,turnoffthecomputer,andthenrestartthecomputer.

•Tryalowerscreenresolutionorcolordepth.

Iftheseactionsdonotcorrecttheproblem,runthediagnosticprograms(see“LenovoSolutionCenter”on
page53

forinstructions).Ifyouneedtechnicalassistance,see“LenovoSupportWebsite”onpage31.

Chapter5.Troubleshootinganddiagnostics39

DVDmoviewillnotplay

Symptom:DVDmoviewillnotplay.

Actions:

•Makesurethatthediscsurfaceiscleanandnotscratched.

•Checkthediscorpackageforregionalcoding.Y oumightneedtopurchaseadiscwithcodingfor
theregionwhereyouareusingyourcomputer.

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

NoaudioorintermittentaudiowhileplayingDVDmovie

Symptom:NoaudioorintermittentaudiowhileplayingDVDmovie.

Actions:

•Checkthevolumecontrolsettingsonyourcomputerandonyourspeakers.

•Makesurethatthediscsurfaceiscleanandnotscratched.

•Checkallcableconnectionstoandfromthespeakers.

•UsetheDVDmenuforthevideotoselectadifferentaudiotrack.

Iftheseactionsdonotcorrecttheproblem,runthediagnosticprograms(see“LenovoSolutionCenter”on
page53

forinstructions).Ifyouneedtechnicalassistance,see“LenovoSupportWebsite”onpage31.

Playbackisverysloworchoppy

Symptom:Playbackisverysloworchoppy.

Actions:

•Disableanybackgroundprograms,suchasAntiVirusorDesktopThemes.

•Ensurethatvideoresolutionissettolessthan1152x864.

Iftheseactionsdonotcorrecttheproblem,runthediagnosticprograms(see“LenovoSolutionCenter”on
page53

forinstructions).Ifyouneedtechnicalassistance,see“LenovoSupportWebsite”onpage31.

Invaliddiscornodiscfoundmessage

Symptom:Invaliddiscornodiscfoundmessage

Actions:

•EnsurethataDVDdiscisinthedrivewiththeshinysideofthediscfacingdown.

•Ensurethatvideoresolutionissettolessthan1152x864.

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

Iftheseactionsdonotcorrecttheproblem,runthediagnosticprograms(see“LenovoSolutionCenter”on
page53

forinstructions).Ifyouneedtechnicalassistance,see“LenovoSupportWebsite”onpage31.

Intermittentproblems

Symptom:Aproblemoccursonlyoccasionallyandisdifficulttorepeat.

40ThinkCentreM93zHardwareMaintenanceManual

Actions:

•Verifythatallcablesandcordsaresecurelyconnectedtothecomputerandattacheddevices.

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

Iftheseactionsdonotcorrecttheproblem,runthediagnosticprograms(see“LenovoSolutionCenter”on
page53

forinstructions).Ifyouneedtechnicalassistance,see“LenovoSupportWebsite”onpage31.

Harddiskdriveproblems

Selectyoursymptomfromthefollowinglist:

•“SomeorallharddiskdrivesmissingfromtheSetupUtilityprogram”onpage41

•“"NoOperatingSystemFound"messageorthesystemnotstartingfromthecorrectharddiskdrive”
onpage41

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”onpage58.

Note:Inrarecases,theharddiskdrivewiththeoperatingsystemmightgetcorruptedordamaged.Insuch
cases,youmightneedtoreplacetheharddiskdrive.

Iftheseactionsdonotcorrecttheproblem,runthediagnosticprogramLenovoSolutionCenter.See“Lenovo
SolutionCenter”onpage53.Ifyouneedtechnicalassistance,see“LenovoSupportWebsite”onpage31.

Keyboard,mouse,orpointingdeviceproblems

Selectyoursymptomfromthefollowinglist:

•“Allorsomekeysonthekeyboarddonotwork”onpage42

•“Themouseorpointingdevicedoesnotwork”onpage42

Chapter5.Troubleshootinganddiagnostics41

•“Thepointeronthescreendoesnotmovesmoothlywiththemouse”onpage43

•“Thefingerprintreaderdoesnotwork”onpage43

•“Thewirelesskeyboarddoesnotwork”onpage43

Allorsomekeysonthekeyboarddonotwork

Symptom:Allorsomekeysonthekeyboarddonotwork.

Actions:

•Verifythatthekeyboardcableissecurelyconnectedtothecorrectconnectoronthecomputer.

•IfyouareusinganEnhancedPerformanceUSBkeyboardandoneormoreoftheRapidAccessbuttons
aretheonlykeysthatarenotworking,thesebuttonsmighthavebeendisabledorhavenotbeenassigned
toafunction.UsethehelpsystemintheEnhancedPerformanceCustomizationKeyboardprogramto
helpdiagnoseproblemswiththeRapidAccessbuttons.

ToopentheEnhancedPerformanceCustomizationKeyboardprogram,dooneofthefollowing:
–OntheWindows7operatingsystem,dothefollowing:

1.ClickStart➙ControlPanel.

2.ClickHardwareandSound.

3.ClickDevicesandPrinters.

4.Double-clickUSBEnhancedPerformanceKeyboard.TheUSBEnhancedPerformance
KeyboardCustomizationprogramstarts.

–OntheWindows8operatingsystem,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,runthediagnosticprograms(see“LenovoSolutionCenter”on
page53forinstructions).Ifyouneedtechnicalassistance,see“LenovoSupportWebsite”onpage31.

Opticalmouse

Thissectionprovidesinstructionsonhowtocleananopticalmouse.

42ThinkCentreM93zHardwareMaintenanceManual

.

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

Tocleananopticalmouse,dothefollowing:

1.T urnoffyourcomputer.

2.Disconnectthemousecablefromthecomputer.

3.T urnthemouseupsidedowntocheckthelens.
a.Ifthereisasmudgeonthelens,gentlycleantheareawithaplaincotton-tippedswab.
b.Ifthereisdebrisinthelens,gentlyblowthedebrisawayfromthearea.

4.Checkthesurfaceonwhichyouareusingthemouse.Ifyouhaveaveryintricatepictureorpattern
beneaththemouse,itmaybedifficultforthedigitalsignalprocessor(DSP)todeterminechanges
inthemouseposition.

5.Reconnectthemousecabletothecomputer.

6.T urnyourcomputerbackon.

Thepointeronthescreendoesnotmovesmoothlywiththemouse

Symptom:Thepointeronthescreendoesnotmovesmoothlywiththemouse.

Action:Erraticmovementofthemousepointerisgenerallycausedbyabuildupofdirt,oils,andother
contaminantsontheballinsidethemouse.Cleanthemouse.

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.

Chapter5.Troubleshootinganddiagnostics43

Forinformationaboutthestatuslightsandusingthecontrols,refertothedocumentationthatcomes
withyourmonitor.

Selectyoursymptomfromthefollowinglist:

•“Wrongcharactersappearonthescreen”onpage44

•“Themonitorworkswhenyouturnonthecomputer,butgoesblankaftersomeperiodofcomputer
inactivity”onpage44

•“Themonitorworkswhenyouturnonthecomputer,butgoesblankwhenyoustartsomeapplication
programs”onpage44

•“Theimageappearstobeflickering”onpage44

•“Theimageisdiscolored”onpage45

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.

44ThinkCentreM93zHardwareMaintenanceManual

Attention:Usingaresolutionorrefreshratethatisnotsupportedbyyourmonitormightdamageit.

Checkthedocumentationthatcomeswithyourmonitortoverifythesupportedrefreshrates.

•Themonitormightbeaffectedbyinterferencefromnearbyequipment.Magneticfieldsaroundother
devices,suchastransformers,appliances,fluorescentlights,andothermonitorsmightbecausingthe
problem.Movefluorescentdesklightingoranyequipmentthatproducesmagneticfieldsfartheraway
fromthemonitor.Ifthisdoesnotcorrecttheproblem,dothefollowing:

1.T urnoffthemonitor.(Movingacolormonitorwhileitisturnedonmightcausescreendiscoloration.)

2.Adjusttheplacementofthemonitorandotherdevicessothattheyareatleast305mm(12inches)
apart.

3.T urnonthemonitor.

•YoucanresettherefreshratethroughyouroperatingsystemControlPanel:
OntheWindows7operatingsystem,clickStart➙ControlPanel➙HardwareandSound➙Adjust

screenresolution➙AdvancedSettings.ThenclicktheMonitortabandselectanewrefreshrate.
OntheWindows8operatingsystem,openControlPanelandclickHardwareandSound➙Adjust

screenresolution➙AdvancedSettings.ThenclicktheMonitortabandselectanewrefreshrate.

•Seeyouroperatingsystemdocumentationorhelpforfurtherinformationonmonitorsettings.

Iftheseactionsdonotcorrecttheproblem,yourmonitormightneedservice.See“LenovoSupportWeb
site”onpage31fordetails.

Theimageisdiscolored

Symptom:Theimageisdiscolored.

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

1.T urnoffthemonitor.(Movingacolormonitorwhileitisturnedonmightcausescreendiscoloration.)

2.Adjusttheplacementofthemonitorandotherdevicessothattheyareatleast305mm(12inches)apart.

3.T urnonthemonitor.

Iftheseactionsdonotcorrecttheproblem,yourmonitormightneedservice.See“LenovoSupportWeb
site”onpage31

fordetails.

Networkingproblems

Thefollowingarethemostcommonnetworkingproblems.Selectyournetworkingproblemfromthe
followinglist:

•“Ethernetproblems”onpage45

•“AwirelessLANproblem”onpage47

•“AwirelessWANproblem”onpage47

•“Bluetoothproblems”onpage48

Ethernetproblems

ForEthernetproblems,selectyoursymptomfromthefollowinglist:

•“Yourcomputercannotconnecttothenetwork”onpage46

•“Theadapterstopsworkingfornoapparentreason”onpage46

Chapter5.Troubleshootinganddiagnostics45

•“IfyourcomputerisaGigabitEthernetmodelandyouuseaspeedof1000Mbps,theconnectionfails
orerrorsoccur”onpage47

•“IfyourcomputerisaGigabitEthernetmodel,itcannotconnecttothenetworkat1000Mbps.Instead,
itconnectsat100Mbps”onpage47

Yourcomputercannotconnecttothenetwork

Symptom:Y ourcomputercannotconnecttothenetwork.

Actions:Ensurethat:

•Thecableisinstalledproperly.
ThenetworkcablemustbesecurelyconnectedtoboththeEthernetconnectorofyourcomputerand

theRJ45connectorofthehub.Themaximumallowabledistancefromthecomputertohubis100
meters.Ifthecableisconnectedandthedistanceiswithinacceptablelimitsbuttheproblempersists,try
adifferentcable.

•Thecableisinstalledproperly.

•Youareusingthecorrectdevicedriver.
OntheWindows7operatingsystem,dothefollowing:

1.ClickStart➙ControlPanel.

2.ClickHardwareandSound.

3.ClickDeviceManager.Ifyouarepromptedforanadministratorpasswordorconfirmation,typethe
passwordorprovideconfirmation.

4.IfanexclamationmarkisdisplayednexttoanadapternameunderNetworkadapters,youmight
notbeusingthecorrectdriverorthedriverisnotenabled.T oupdatethedriver,right-clickthe
highlightedadapter.

5.ClickUpdateDriverSoftware,andthenfollowtheinstructionsonthescreen.

OntheWindows8operatingsystem,dothefollowing:

1.OpenControlPanel.

2.ClickHardwareandSound.

3.ClickDeviceManager.Ifyouarepromptedforanadministratorpasswordorconfirmation,typethe
passwordorprovideconfirmation.

4.IfanexclamationmarkisdisplayednexttoanadapternameunderNetworkadapters,youmight
notbeusingthecorrectdriverorthedriverisnotenabled.T oupdatethedriver,right-clickthe
highlightedadapter.

5.ClickUpdateDriverSoftware,andthenfollowtheinstructionsonthescreen.

•Theswitchportandtheadapterhavethesameduplexsetting.
Ifyouconfiguredtheadapterforfullduplex,ensurethattheswitchportisalsoconfiguredforfullduplex.

Settingthewrongduplexmodecandegradeperformance,causedataloss,orresultinlostconnections.

•Youhaveinstalledallnetworkingsoftwarethatisnecessaryforyournetworkenvironment.
CheckwithyourLANadministratorforthenecessarynetworkingsoftware.

Theadapterstopsworkingfornoapparentreason

Symptom:Theadapterstopsworkingfornoapparentreason.

Action:Thenetworkdriverfilesmaybecorruptormissing.Updatethedriverbyreferringtothe“Solution”
descriptionfortheproceduretomakesurethatthecorrectdevicedriverisinstalled.

46ThinkCentreM93zHardwareMaintenanceManual

TheWakeonLANfeatureisnotworking

Symptom:TheWakeonLAN(WOL)featureisnotworking.

Actions:

•MakesurethatWOLisenabledintheBIOSSetupUtilityprogram.

•Ifitis,checkwithyourLANadministratorforthenecessarysettings.

IfyourcomputerisaGigabitEthernetmodelandyouuseaspeedof1000Mbps,theconnection
failsorerrorsoccur

Symptom:IfyourcomputerisaGigabitEthernetmodelandyouuseaspeedof1000Mbps,theconnection
failsorerrorsoccur.

Actions:

•UseCategory5wiringandmakesurethatthenetworkcableissecurelyconnected.

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

IfyourcomputerisaGigabitEthernetmodel,itcannotconnecttothenetworkat1000Mbps.Instead,
itconnectsat100Mbps

Symptom:IfyourcomputerisaGigabitEthernetmodel,itcannotconnecttothenetworkat1000Mbps.
Instead,itconnectsat100Mbps.

Actions:

•Tryanothercable.

•Makesurethatthelinkpartnerissettoauto-negotiate.

•Makesurethattheswitchis802.3ab-compliant(gigabitovercopper).

AwirelessLANproblem

Symptom:Youcannotconnectusingthebuilt-inwirelessnetworkingcard.

Actions:

•MakesurethatyourwirelessLANdriveristhelatestversion.ChecktheWebsiteandverifythedriver
versionsupportedbyAccessConnectionsisthelatestdocumentedinthereadmefile.

•Makesurethatyourcomputeriswithinrangeofawirelessaccesspoint.

•Makesurethatthewirelessradioisenabledbydouble-clickingtheAccessConnectionsiconinthe
Windowsnotificationarea.

Note:OntheWindows7operatingsystem,clickShowhiddeniconsintheWindowsnotification
area.TheAccessConnectionsiconisdisplayed.Formoreinformationabouttheicon,seetheHelpin
AccessConnections.

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

AwirelessWANproblem

Message:UnauthorizedWANcardispluggedin-PoweroffandremovetheWANcard.

Action:Thewide-area-networkcard(WANcard)isnotsupportedonthiscomputer.Removeit.

Note:SomecomputermodelsdonothaveawirelessWAN.

Chapter5.Troubleshootinganddiagnostics47

Bluetoothproblems

ForBluetoothproblems,selectyoursymptomfromthefollowinglist:

•“SounddoesnotcomefromtheBluetoothheadphone”onpage48

•“PIMitemssentfromtheWindows7operatingsystemcannotbereceivedcorrectly”onpage48

SounddoesnotcomefromtheBluetoothheadphone

Symptom:SounddoesnotcomefromtheBluetoothheadset/headphonebutcomesfromthelocalspeaker
eventhoughtheheadset/headphoneisconnectedusingHeadsetprofileorAVprofile.

Action:Dothefollowing:

1.Exittheapplicationthatusesthesounddevice(forexample,WindowsMediaPlayer).

2.OpentheControlPanelbyclickingStart➙ControlPanel.

3.ClickHardwareandSound➙Sound.

4.SelectthePlaybacktab.

5.IfyouareusingHeadsetprofile,selectBluetoothHands-freeAudioandclicktheSetDefaultbutton.If
youareusingAVprofile,selectStereoAudioandclicktheSetDefaultbutton.

6.ClickOKtoclosetheSoundwindow.

Note:Bluetoothissupportedonlyonsomecomputermodels.

PIMitemssentfromtheWindows7operatingsystemcannotbereceivedcorrectly

Symptom:PersonalInformationManager(PIM)itemssentfromtheWindows7operatingsystemcannotbe
receivedcorrectlyintotheaddressbookofanyotherBluetooth-enableddevice.

Action:TheWindows7operatingsystemsendsPIMitemsinXMLformat,butmostBluetooth-enabled
deviceshandlePIMitemsinvCardformat.IfanotherBluetooth-enableddevicecanreceiveafilethrough
Bluetooth,aPIMitemsentfromtheWindows7operatingsystemmightbesavedasafilewiththeextension
.contact.

Optionproblems

UsethisinformationtodiagnoseproblemswithLenovohardwareoptionsthatdonothavetheirown
troubleshootinginformation.

Selectyoursymptomfromthefollowinglist:

•“Anoptionthatwasjustinstalleddoesnotwork”onpage48

•“Anoptionthatpreviouslyworkeddoesnotworknow”onpage49

Anoptionthatwasjustinstalleddoesnotwork

Symptom:Anoptionthatwasjustinstalleddoesnotwork.

Action:Verifythat:

•Theoptionisdesignedforyourcomputer.

•Youfollowedtheinstallationinstructionssuppliedwiththeoptionandtheinstallationinstructionsprovided
withyourcomputer,andalloptionfiles(suchasdevicedrivers,ifrequired)areinstalledcorrectly.

•Youhavenotloosenedotherinstalledoptionsorcables.

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

48ThinkCentreM93zHardwareMaintenanceManual

Iftheseactionsdonotcorrecttheproblem,runthediagnosticprograms(see“LenovoSolutionCenter”on
page53

forinstructions).Ifyouneedtechnicalassistance,see“LenovoSupportWebsite”onpage31.

Anoptionthatpreviouslyworkeddoesnotworknow

Symptom:Anoptionthatpreviouslyworkeddoesnotworknow.

Actions:

•Verifythatalloptionhardwareandcableconnectionsaresecure.

•Iftheoptioncomeswithitsowntestinstructions,usethoseinstructionstotesttheoption.

•IfthefailingoptionisaSCSIoption,verifythat:
–ThecablesforallexternalSCSIoptionsareconnectedcorrectly.

–ThelastoptionineachSCSIchain,ortheendoftheSCSIcable,isterminatedcorrectly.
–AllexternalSCSIoptionsareturnedon.ExternalSCSIoptionsmustbeturnedonbeforethecomputer

isturnedon.Formoreinformation,seeyourSCSIdocumentation.

•Verifythattheoptionandanyrequireddevicedriversareinstalledcorrectly.

Iftheseactionsdonotcorrecttheproblem,runthediagnosticprograms(see“LenovoSolutionCenter”on
page53

forinstructions).Ifyouneedtechnicalassistance,see“LenovoSupportWebsite”onpage31.

Performanceandlockupproblems

Poorperformanceandlockupproblemscanbearesultofanyofthefollowing:

•“Insufficientfreeharddiskdrivespace”onpage49

•“Excessivenumberoffragmentedfiles”onpage50

•“Insufficientmemory”onpage51

Makeaselectionfromtheabovelisttofindoutmoreaboutthecorrectiveactionsyoucantake.

Insufficientfreeharddiskdrivespace

Symptom:Insufficientfreeharddiskdrivespace

TheWindowsoperatingsystemwillslowdownandmightproduceerrorsiftheharddiskdrivegetstoofull.

TochecktheamountoffreespaceontheWindows7operatingsystem,dothefollowing:

1.ClickStart➙Computer.

2.Right-clickyourCdriveentryandthenclickProperties.Theamountoffreediskspaceisdisplayed.

TochecktheamountoffreespaceontheWindows8operatingsystem,dothefollowing:

1.OpentheWindowsExplorerandclickComputer.

2.Right-clickyourCdriveentryandthenclickProperties.Theamountoffreediskspaceisdisplayed.

Tofreeupdiskspace,doanyofthefollowing:

•Procedure1

1.OntheWindows7operatingsystem,clickStart➙Computer.OntheWindows8operatingsystem,
opentheWindowsExplorerandclickComputer.

2.Right-clickyourCdriveentryandthenclickProperties.

3.ClickDiskCleanup.

Chapter5.Troubleshootinganddiagnostics49

4.Alistofunnecessaryfilecategoriesisdisplayed.Selecteachfilecategoryyouwanttodelete,
andthenclickOK.

•Procedure2

1.OpenControlPanel.

2.ClickPrograms.

3.ClickTurnWindowsfeaturesonoroff.

4.AlistofoptionalWindowscomponentsisdisplayed.Followtheinstructionsonthescreen.

•Procedure3

1.OntheWindows7operatingsystem,clickStart➙Computer.OntheWindows8operatingsystem,
opentheWindowsExplorerandclickComputer.

2.Right-clickyourCdriveentryandthenclickProperties.

3.ClickDiskCleanup.

4.ClickCleanupsystemfiles.

5.ClicktheMoreOptionstab.

6.IntheProgramsandFeaturesarea,clicktheCleanupbutton.

7.Alistofinstalledprogramsisdisplayed.Selecttheprogramthatyouwanttoremove.Click
Uninstall/Change.

•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.ClicktheT oolstab.

5.ClickDefragmentNow,thenclickContinue.

6.ClickDefragmentNowagaintostartadisk-defragmentationprocess.

OntheWindows8operatingsystem,dothefollowing:

1.Closeanyprogramsthatarecurrentlyrunningandcloseanyopenwindows.

2.OpentheWindowsExplorerandclickComputer.

3.Right-clickyourCdriveentryandthenclickProperties.

4.ClicktheT oolstab.

5.ClickOptimize.

6.ClickOptimizeagaintostartadisk-defragmentationprocess.

50ThinkCentreM93zHardwareMaintenanceManual

Insufficientmemory

Symptom:Insufficientmemory

Ingeneral,themorememorythatisinstalled,thebettertheWindowsoperatingsystemruns.

Action:Installadditionalmemory.Forinformationaboutpurchasingmemory,see“LenovoSupportWeb
site”onpage31
module”onpage87

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.Y ouhaveassignedtheprinterportcorrectlyinyouroperatingsystem,applicationprogram,orBIOS
settings.FormoreinformationaboutBIOSsettings,seeChapter6“UsingtheSetupUtilityprogram”
onpage55.

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

Serialportproblems

Usethisinformationtotroubleshoottheserialportanddevicesattachedtotheserialport.

Symptom:Serialportcannotbeaccessed.

Actions:

•Makesuretheserialcableissecurelyconnectedtotheserialportonthecomputerandtotheserial
device.Iftheserialdevicehasitsownpowercord,makesureitisattachedtoaproperlygrounded
electricaloutlet.

•IftheserialdevicehasitsownOn/Offswitch,makesureitisintheOnposition.

•IftheserialdevicehasanOnlineswitch,makesureitisintheOnlineposition.

•Iftheserialdeviceisaprinter,makesurepaperisloadedcorrectly.

•Verifythatanysoftwaresuppliedwiththeserialdeviceiscorrectlyinstalled.Refertothedocumentation
fortheserial-deviceoption.

•Makesurethattheserial-portadapter,ifyouaddedone,isproperlyinstalledandfirmlyseated.

Iftheseactionsdonotcorrecttheproblem,runthediagnosticprograms(see“LenovoSolutionCenter”on
page53

forinstructions).Ifyouneedtechnicalassistance,see“LenovoSupportWebsite”onpage31.

Chapter5.Troubleshootinganddiagnostics51

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.

•Todetermineifproblemsarecausedbynewlyinstalledsoftware,verifythat:
–Yourcomputerhastheminimummemoryrequirementsneededtousethesoftware.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.

–OntheWindows8operatingsystem,openControlPanelandclickSystemandSecurity➙System➙

SystemProtection➙SystemRestore.Then,followtheinstructionsonthescreen.

•Ifyouareunabletoresolvetheproblemthroughothermethods,uninstallthesoftwareprogramand
reinstallit.

Iftheseactionsdonotcorrecttheproblem,youmightneedtechnicalassistance.Contactyoursoftware
manufacturerorsee“LenovoSupportWebsite”onpage31fordetails.

52ThinkCentreM93zHardwareMaintenanceManual

USBproblems

Symptom:TheUSBconnectorscannotbeaccessed.

Actions:

•MakesuretheUSBcableissecurelyconnectedtotheUSBconnectorandtotheUSBdevice.IftheUSB
devicehasitsownpowercord,makesureitisattachedtoaproperlygroundedelectricaloutlet.

•IftheUSBdevicehasitsownOn/Offswitch,makesureitisintheOnposition.

•IftheUSBdevicehasanOnlineswitch,makesureitisintheOnlineposition.

•IftheUSBdeviceisaprinter,makesurepaperisloadedcorrectly.

•MakesureanydevicedriversorothersoftwaresuppliedwiththeUSBdeviceiscorrectlyinstalled.
RefertothedocumentationfortheUSBdevice.

•ResetthedevicebydetachingandreattachingtheUSBconnector.

Iftheseactionsdonotcorrecttheproblem,runthediagnosticprogramstotesttheUSBconnector(see
“LenovoSolutionCenter”onpage53forinstructions).IftheUSBdevicecamewithitsowndiagnostics,
runthosediagnosticsagainsttheUSBdevice.Ifyouneedtechnicalassistance,see“LenovoSupport
Website”onpage31

.

Diagnostics

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

Notes:

1.Y ourcomputerispreinstalledwiththeLenovoSolutionCenterprogramfordiagnosticpurposes.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.

•IfyouareusingotherWindowsoperatingsystemratherthanWindows7andWindows8,goto
http://www.lenovo.com/diagsforthelatestinformationondiagnosticsforyourcomputer.

ToruntheLenovoSolutionCenterprogram,see“Lenovoprograms”onpage30

Foradditionalinformation,refertotheLenovoSolutionCenterhelpsystem.

Note:Ifyouareunabletoisolateandrepairtheproblemyourselfafterrunningtheprogram,saveandprint
thelogfiles.YouwillneedthelogfileswhenyouspeaktoaLenovotechnicalsupportrepresentative.

.

Chapter5.Troubleshootinganddiagnostics53

UEFIdiagnosticprogram

AUEFIdiagnosticprogramispreinstalledonthecomputer.Itenablesyoutotestmemorymodulesand
internalstoragedevices,viewsysteminformation,andcheckandrecoverbadsectorsoninternalstorage
devices.

ToruntheUEFIdiagnosticprogram,dothefollowing:

1.T urnonthecomputer.Ifthecomputercannotbeturnedon,goto“Basictroubleshooting”onpage

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

2.RepeatedlypressandreleasetheF10keywhenturningonthecomputer.Themainscreenofthe
UEFIdiagnosticprogramisdisplayed.

3.Followtheinstructionsonthescreentousethediagnosticprogram.

Theoptionsonthemainscreenareasfollows:

Table2.ItemsonthemainscreenoftheUEFIdiagnosticprogram

DIAGNOSTICSTOOLS

•LCDtest

•Memory-Quicktest

•Memory-Extendedtest

•Motherboardtest

•PCI-etest

•Storage-Quicktest

•Systeminformation

•Recoverbadsectorstool

•Generateconfigurationfile

•Executefromconfigurationfile

•Exitapplication

54ThinkCentreM93zHardwareMaintenanceManual

Chapter6.UsingtheSetupUtilityprogram

TheSetupUtilityprogramisusedtoviewandchangetheconfigurationsettingsofyourcomputer,regardless
ofwhichoperatingsystemyouareusing.However,theoperatingsystemsettingsmightoverrideanysimilar
settingsintheSetupUtilityprogram.

StartingtheSetupUtilityprogram

TostarttheSetupUtilityprogram,dothefollowing:

1.Makesureyourcomputeristurnedoff.

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.T osetastrongpassword,
usethefollowingguidelines:

•Haveatleasteightcharactersinlength

•Containatleastonealphabeticcharacterandonenumericcharacter

•SetupUtilityprogramandharddiskdrivepasswordsarenotcasesensitive

•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.

HardDiskPassword

SettingaHardDiskPasswordpreventsunauthorizedaccesstothedataontheharddiskdrive.Whena
HardDiskPasswordisset,youarepromptedtotypeavalidpasswordeachtimeyoutrytoaccessthe
harddiskdrive.

Notes:

•AfteryousetaHardDiskPassword,yourdataontheharddiskdriveisprotectedeveniftheharddisk
driveisremovedfromonecomputerandinstalledinanother.

•IftheHardDiskPasswordisforgotten,thereisnowaytoresetthepasswordorrecoverdatafromthe
harddiskdrive.

Setting,changing,anddeletingapassword

Toset,change,ordeleteapassword,dothefollowing:

1.StarttheSetupUtilityprogram.See“StartingtheSetupUtilityprogram”onpage55.

56ThinkCentreM93zHardwareMaintenanceManual

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.

Toerasealostorforgottenpassword,dothefollowing:

1.Removeallmediafromthedrivesandturnoffallattacheddevicesandthecomputer.Then,disconnect
allpowercordsfromelectricaloutletsanddisconnectallcablesthatareconnectedtothecomputer.

2.Removethecomputercover.See“Removingthecomputercover”onpage84.

3.LocatetheClearCMOS/Recoveryjumperonthesystemboard.See“Locatingpartsonthesystem
board”onpage74.

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

5.Reinstallthecomputercoverandconnectthepowercord.See“Completingthepartsreplacement”on
page126.

6.T urnonthecomputerandleaveitonforapproximately10seconds.Then,turnoffthecomputerby
holdingthepowerswitchforapproximatelyfiveseconds.

7.Repeatstep1throughstep2.

8.MovetheClearCMOS/Recoveryjumperbacktothestandardposition(pin1andpin2).

9.Reinstallthecomputercoverandconnectthepowercord.See“Completingthepartsreplacement”on
page126.

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”
onpage60.

Chapter6.UsingtheSetupUtilityprogram57

Selectingastartupdevice

Ifyourcomputerdoesnotstartupfromadevicesuchasthediscorharddiskdriveasexpected,dooneof
thefollowingtoselectthestartupdeviceyouwant.

Selectingatemporarystartupdevice

Usethisproceduretoselectatemporarystartupdevice.

Note:Notalldiscsandharddiskdrivesarebootable.

1.T urnoffyourcomputer.

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”
onpage60.

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:

58ThinkCentreM93zHardwareMaintenanceManual

•Pressingthepowerswitch

•Enablingthewakeuponalarmfeature
Thewakeuponalarmfeatureenablesyourcomputertowakeupatasettime.Toenablethewake

uponalarmfeature,dothefollowing:

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.

ICEperformancemode

YoucanadjusttheacousticandthermalperformanceofyourcomputerthroughtheICEPerformance
Modemenu.T wochoicesareavailable:

•BetterAcousticPerformance(defaultsetting)

•BetterThermalPerformance

ByenablingBetterAcousticPerformance,yourcomputerwillrunwithlessnoiseatanormalthermal
level.ByenablingBetterThermalPerformance,yourcomputerwillrunatabetterthermallevelwith
normalacousticperformance.

ToconfiguretheICEperformancemode,dothefollowing:

1.StarttheSetupUtilityprogram.See“StartingtheSetupUtilityprogram”onpage55.

2.FromtheSetupUtilityprogrammainmenu,selectPower.

3.SelectIntelligentCoolingEngine(ICE).TheIntelligentCoolingEngine(ICE)windowisdisplayed.

4.SelectICEPerformanceMode.TheICEPerformanceModewindowisdisplayed.

5.SelectBetterAcousticPerformanceorBetterThermalPerformanceasdesired.

6.PressF10tosavechangesandexittheSetupUtilityprogram.See“ExitingtheSetupUtilityprogram”
onpage60.

ICEthermalalert

YoucanmonitorthethermalfunctionofyourcomputerundercriticalthermalsituationsthroughtheICE
ThermalAlertmenu.Twochoicesareavailable:

•Enabled(defaultsetting)

•Disabled

Chapter6.UsingtheSetupUtilityprogram59

AfterenablingtheICEthermalalertfunction,whencriticalthermalsituationsoccur,suchasmalfunctioning
fans,abnormallyhightemperature,andpoorcoolingperformances,analertlogwillbewrittenintothe
Windowssystemlog.Thealertlogcanhelpyouidentifythethermalproblems.

ToconfiguretheICEthermalalertfunction,dothefollowing:

1.StarttheSetupUtilityprogram.See“StartingtheSetupUtilityprogram”onpage55.

2.FromtheSetupUtilityprogrammainmenu,selectPower.

3.SelectIntelligentCoolingEngine(ICE).TheIntelligentCoolingEngine(ICE)windowisdisplayed.

4.SelectICEThermalAlert.TheICEThermalAlertwindowisdisplayed.

5.SelectEnabledorDisabledasdesired.

6.PressF10tosavechangesandexittheSetupUtilityprogram.See“ExitingtheSetupUtilityprogram”
onpage60

.

ChangingtheBIOSsettingsbeforeinstallinganewoperatingsystem

BIOSsettingsvarybyoperatingsystem.ChangetheBIOSsettingsbeforeinstallinganewoperatingsystem.

TochangetheBIOSsettings,dothefollowing:

1.StarttheSetupUtilityprogram.See“StartingtheSetupUtilityprogram”onpage55.

2.FromtheSetupUtilityprogrammainmenu,selectExit➙OSOptimizedDefault.

3.Dependingontheoperatingsystemtobeinstalled,dooneofthefollowing:

•ToinstalltheWindows8(64-bit)operatingsystem,selectEnabled.

•ToinstallanoperatingsystemotherthanWindows8(64-bit),selectDisabled.

4.SelectYesinthewindowdisplayedandpressEntertoconfirmyourselection.

5.PressF10tosavechangesandexittheSetupUtilityprogram.See“ExitingtheSetupUtilityprogram”
onpage60.

ExitingtheSetupUtilityprogram

Afteryoufinishviewingorchangingsettings,pressEsctoreturntotheSetupUtilityprogrammainmenu.
YoumighthavetopressEscseveraltimes.Dooneofthefollowing:

•Ifyouwanttosavethenewsettings,pressF10tosavechangesandexittheSetupUtilityprogram.

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

•Ifyouwanttoreturntothedefaultsettings,pressF9toloadthedefaultsettings,andthenpressF10to
saveandexittheSetupUtilityprogram.

60ThinkCentreM93zHardwareMaintenanceManual

Chapter7.Symptom-to-FRUindex

TheSymptom-to-FRUindexlistserrorsymptomsandpossiblecauses.Themostlikelycauseislistedfirst.
AlwaysbeginwiththeChapter4“Generalcheckout”onpage33.Y oucanusethisindextohelpyoudecide
whichFRUsareneededwhenservicingacomputer.Ifyouareunabletocorrecttheproblemusingthis
index,goto“Undeterminedproblems”onpage65

Notes:

1.Ifyouhavebothanerrormessageandanincorrectaudioresponse,diagnosetheerrormessagefirst.

2.Ifyoucannotrunthediagnostictestsoryougetadiagnosticerrormessagewhenrunningatest,butdidreceivea
POSTerrormessage,diagnosethePOSTerrormessagefirst.

3.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

Thefollowingtablesdescribesbeepsymptoms.

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-Test,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.

62ThinkCentreM93zHardwareMaintenanceManual

ErrorcodePOSTErrorMessageDescription/Action

1820

1962

Morethanoneexternalfingerprint
readerareattached.Poweroffand
removeallbutthereaderthatyouset
upwithinyourmainoperatingsystem.

Nooperatingsystemfound.Press
anykeytorepeatbootsequence.

Ifmorethanoneexternalfingerprint
readerareconnectedtoacomputer,
thiserrormessagewillbedisplayed
toinformyoutoremoveallofthe
fingerprintkeyboardsexceptthe
onecompatiblewiththefingerprint
applicationonyourcomputer.

ThiserroroccursonlyafterthePOST
iscompleted.

Pressanykeytorepeatboot
sequence.

Miscellaneouserrorconditions

Message/SymptomFRU/Action

ChangingdisplaycolorsDisplay/Monitor
Computerwillnotpower-off.See“Harddiskdriveboot

error”onpage61

ComputerwillnotRPLfromserver

ComputerwillnotperformaWakeOnLAN(ifapplicable)1.Checkpowersupplyandsignalcableconnections

Deadcomputer.See“Harddiskdrivebooterror”onpage

61.

Diskettedrivein-uselightremainsonordoesnotlight
whendriveisactive.

Blankscreenexceptforflashingcursor.

.

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

Note:EnsurethattheLEDswitchunderOSDmenuis
enabled.ToenabletheLEDswitch,selectOSDmenu➙
AdvancedSettings➙LEDSwitch.

1.SystemBoard

2.PrimaryHardDiskDrive

3.HardDiskDriveCable

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

Programloadsfromtheharddiskwithaknown-good
diagnosticsdisketteinthefirst3.5-inchdiskettedrive

RPLcomputercannotaccessprogramsfromitsownhard
disk.

RPLcomputerdoesnotRPLfromserver

Serialportdevicefailure(adapterport)1.ExternalDeviceSelf-TestOK?

Someorallkeysonthekeyboarddonotwork

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

Note:EnsurethattheLEDswitchunderOSDmenuis
enabled.ToenabletheLEDswitch,selectOSDmenu➙
AdvancedSettings➙LEDSwitch.

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.AlternateAdapter

5.SystemBoard

1.Keyboard

2.KeyboardCable

3.SystemBoard

64ThinkCentreM93zHardwareMaintenanceManual

Undeterminedproblems

Thissectionprovidesinstructionsonhowtofindoutthefailingdevicesoradapters.

1.Power-offthecomputer.

2.Removeordisconnectthefollowingcomponents(ifinstalled)oneatatime.
a.Anyadapters
b.Diskettedrive
c.ExternalCache
d.ExternalCacheRAM
e.Externaldevices(modem,printer,ormouse)
f.Harddiskdrive
g.Internaldevices(cardreader,Wi-Ficard,ExpressCard,camera,touchpanelcontrolboard,rear

I/Oboardorcables)

h.Memorymodules

3.Power-onthecomputertore-testthesystem.

4.Repeatsteps1through3untilyoufindthefailingdeviceoradapter.

Ifalldevicesandadaptershavebeenremoved,andtheproblemcontinues,replacethesystemboard.

Chapter7.Symptom-to-FRUindex65

66ThinkCentreM93zHardwareMaintenanceManual

Chapter8.Locations

Thischapterintroducesthelocationsofthecomputerhardwarecomponents.

Locatingconnectors,controls,andindicatorsonthefrontofyour computer

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

Figure1.Frontconnector,control,andindicatorlocations

Table3.Incomputermodeandmonitormode

1Integratedmicrophones(optional)8Volume-downcontrol(computermode)
2Ambientlightsensor(optional)9Monitormode/computermodeswitch
3Integratedcameraactivityindicator(optional)
4Integratedcamerashieldcontrolslider(optional)
5Integratedcamera(optional)

©CopyrightLenovo2013,2014

10Powerbutton
11Power-onindicator
12Harddiskdriveactivityindicator

67

Table3.Incomputermodeandmonitormode(continued)

6Microphonemute/unmutecontrol(computermode)13Microphonemute/unmuteindicator
7Volume-upcontrol(computermode)

Note:Indicators3,11,12,and13arevisibleonlywhentheyarelit.

Table4.InOnScreenDisplay(OSD)

6OSDexitbutton8OSDrightorbrightness-downcontrol
7OSDleftorbrightness-upcontrol9OSDenterbutton

Note:TodisplaytheOSDmenu,pressandholdthebutton9forthreeseconds.Youcandisplayanduse
theOSDmenuinbothcomputermodeandmonitormode.

Usingyourcomputerinmonitormode

Yourcomputercanworkineither:computermodeormonitormode.Thissectionprovidesinstructions
onhowtouseyourcomputerinmonitormode.

Touseyourcomputerinmonitormode,youneedtohaveasecondcomputer.Connectoneendofthe
VGAcabletotheVGA-inconnectorontherearofyourcomputer,andconnecttheotherendtotheVGA
connectoronthesecondcomputer.Usethemonitormode/computermodeswitchontherightsideofyour
computertoswitchyourcomputerbetweencomputermodeandmonitormode.

Thefollowingtableintroducesthebuttonsthatyoucanusewhenyourcomputerisworkinginmonitormode.

IconnameFunctiondescription

Pressandholdthisbuttonforthreesecondstodisplay

OSDmenu

Cancel/Exit

Monitormode/computermodeswitch

theOSDmenu.

CancelanoperationorexittheOSDmenu.

Switchyourcomputerbetweencomputermodeand
monitormode.

AccessingtheOnScreenDisplay(OSD)

YoucanaccesstheOSDinbothcomputermodeandmonitormode.T oaccesstheOSD,pressandhold
theOSDenterbuttonforthreeseconds.

ThefollowingtableshowseachiconontheOSDmainmenu.

Layer1iconLayer1iconname

Brightness/Contrast

68ThinkCentreM93zHardwareMaintenanceManual

ImagePosition

ImageSetup

ImageProperties

Layer1iconLayer1iconname

UsingtheOSDmenu

ThefollowingsectionintroducestheiconsthatyoucanuseinOSD.

•Brightness/Contrast

–Brightness:Adjuststheoverallscreenbrightness.
–Contrast:Adjuststhedifferencebetweenlightanddarkareas.

•ImagePosition

–HorizontalPosition:Movestheimageleftorright.
–VerticalPosition:Movestheimageupordown.

•ImageSetup

–Automatic:Optimizestheimage(size,position,phase,andclock).

Options

AdvancedSettings

Exit

–Manual

:Manuallyoptimizestheimage(phaseandclock).

•ImageProperties

–Color:Adjuststheintensityofred,green,andblue.
–Scaling

:Expandstheimagetofullscreen.

•Options

–Information:Displaystheresolution,refreshrate,andproductdetails.
–MenuLanguage:Changesthelanguageofthemenu.
–MenuPosition:Adjuststhelocationofthemenu.
–FactoryDefault:Resetsthemonitortooriginalsettings.
–Accessibility:Changesthemenutime-outsettings.

•AdvancedSettings
–Ctrl+Alt+Del:Displaysthesystemrestartmenu.

–DebugMode:Displaysthedebuginformationafterthecomputerrestarts(onlyforLenovotrained

servicepersonnel).

Note:Bydefault,thisfunctionisdisabledtoensurethatyourcomputercanworkproperly.

–LEDSwitch:TurnsonorturnsofftheLEDs.

•Exit:ExitstheOSDmenu.

Chapter8.Locations69

Locatingconnectorsontherearofyourcomputer

Figure2“Rearconnectorlocations”onpage70showsthelocationsoftheconnectorsontherearofyour
computer.Someconnectorsontherearofyourcomputerarecolor-codedtohelpyoudeterminewhereto
connectthecablesonyourcomputer.

Figure2.Rearconnectorlocations

1Opticaldrive(optional)9VGA-inconnector
2PS/2mouseconnector(optional)10USB3.0connectors(USBports3to6)
3PS/2keyboardconnector(optional)11ExpressCardslot(optional)
4Serialconnector(optional)12Cardreaderslot(optional)
5Powercordconnector

6Security-lockslot14Headsetconnector(alsoknownascomboaudio

13USB3.0connector(USBport2)(supportingUSB

charging)

connector)

70ThinkCentreM93zHardwareMaintenanceManual

7Ethernetconnector15Microphoneconnector
8DisplayPort

®

-outconnector

16USB3.0connector(USBport1)

Notes:

•Theheadsetconnector14supportsamicrophone-integratedheadsetanddoesnotsupporta
conventionalmicrophone.

•Bydefault,theUSB3.0connector13enablesyoutochargesomemobiledigitaldevicesand
smartphoneswhenyourcomputerisinsleepmode,inhibernationmode,orturnedoff.

Thecardreaderslot12isfor11-in-1cardreaders,supportingthefollowingcards:

•ExtremeDigital(x-D)PictureCard(typeH)

•ExtremeDigital(x-D)PictureCard(typeM)

•MemoryStick(MS)

•MSPRO

•MultiMediaCard(MMC)

•MultiMediaCard-mobile(MMC-mobile)

•MultiMediaCard-plus(MMC-plus)

•Reduced-SizeMultiMediaCard(RS-MMC)

•SecureDigital(SD)card

•SecureDigitaleXtended-Capacity(SDXC)card

•SecureDigitalHigh-Capacity(SDHC)card

LocatingmajorFRUsandCRUs

Figure3“LocatingmajorFRUsandCRUsformodelswiththe23-inchdisplay”onpage72showsthe
locationsofthemajorFRUsandCRUsinthecomputer.Toremovethecomputercover,see“Removingthe
computercover”onpage84

.

Chapter8.Locations71

3

4

5

6

33

31

32

Figure3.LocatingmajorFRUsandCRUsformodelswiththe23-inchdisplay

72ThinkCentreM93zHardwareMaintenanceManual

ThefollowingtableliststhemajorFRUsshowninFigure3“LocatingmajorFRUsandCRUsformodelswith
the23-inchdisplay”onpage72

andidentifieswhichFRUsarealsoself-serviceCRUsoroptional-service

CRUs.

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

7

8

Framestandormonitorstand(optional)
ThermalsensorNoYes
HeatsinkYesNo
BatteryNoNo
Wi-Ficardmodule(optional)
MicroprocessorNoYes
MemorymodulesYesNo
Heatsinkandfanassemblyforgraphics

processingunit(GPU)(optional)

9

10

11

Cardreader(optional)
ExpressCard(optional)
mSATAsolid-statedrive(alsocansupportmini

PCIExpressx1cardfunctionwithlimitation)

12

13

14

15

Systemboard
RearI/Oassembly
PowersupplyassemblyNoNo
RearPS/2connectorsandserialportassembly

(optional)

16

17

18

19

20

21

22

23

24

25

26

27

WiFiantennasNoNo
FrontbezelNoNo
Touchpanelcontrolboard(optional)
Internalspeaker
Framefoot(optional)
Touchpanelcontrolboard(optional)
InternalspeakerYesNo
PowerswitchandcontrolbuttonboardNoNo
LCDpanel
HarddiskdriveYesNo
Opticaldrive(optional)
Converterboard

Self-serviceCRUOptional-serviceCRU

YesNo

NoNo

NoYes

YesNo

NoYes

YesNo

NoNo
NoYes

NoYes

YesNo

NoYes

YesNo

NoNo

YesNo

NoYes

Chapter8.Locations73

NumberFRUdescription

28

29

30

31

32

33

Microprocessorfan
VideoElectronicsStandardsAssociation(VESA

mountbracket
Integratedcamerawithmicrophone(optional)
Lightsensor(optional)
KeyboardYesNo
MouseY esNo

Self-serviceCRUOptional-serviceCRU

NoNo

®

)

NoNo

NoYes
NoNo

LookingupFRUinformation

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

Locatingpartsonthesystemboard

Figure4“Systemboardpartlocations”onpage74showsthelocationsofthepartsonthesystemboard.

Figure4.Systemboardpartlocations

1Microprocessor

2ClearComplementaryMetalOxide

Semiconductor(CMOS)/Recoveryjumper

74ThinkCentreM93zHardwareMaintenanceManual

15RearI/Oassemblyslot
16FrontLEDconnector

3Battery17Touchpanelcontrolboardconnector*
4MiniPCIExpressx1cardslot
5Integratedcameraconnector
6Lightsensorconnector*20Keyboardandmousecableconnector
7Memoryslots(2)21SATApowerconnector
8ManagementEngine(ME)disabledjumper22SATA3.0connector(forconnectingtheharddiskdrive)
9Thermalsensorconnector

10Cardreaderconnector24SA TA3.0connector(forconnectingtheopticaldrive,the

18Frontcontrolpanelconnector

19Serialconnector

23Converterboardpowerconnector

secondaryharddiskdrive,orthesecondarysolid-statedrive)

11Internalspeakerconnector

12ExpressCardconnector*

25GPUfanconnector*
2614-pinpowerconnector

13Displayconnector

14mSATAsolid-statedriveslot(alsocansupport

27Microprocessorfanconnector

miniPCIExpressx1cardfunctionwithlimitation)

Note:*denotesthatthecomponentsconnectingto6,12,17,and25areonlyavailableinsomemodels.

Chapter8.Locations75

Adjustingtheframestand

Yourcomputermightcomewithaframestandthatyoucanusetoadjustthecomputertoyourcomfortable
position.Pullthestandopenandadjustthepositionofthecomputeratananglebetween10°and45°
asshowninthefollowingillustration.

Note:Theframestandisavailableonlyinsomemodels.

CAUTION:
Ensurethattheangleisatleast10°fromthevertical;otherwise,thecomputermightbeunstable
andfallover.

Figure5.Adjustingtheframestand

76ThinkCentreM93zHardwareMaintenanceManual

Adjustingthemonitorstand

Yourcomputermightcomewithamonitorstandthatyoucanusetoadjustthecomputertoyourcomfortable
position.

Thefollowingillustrationshowsthatyoucanadjustthepositionofthecomputeratanangleof5°tothe
frontand45°totherear.

Figure6.Adjustingtheverticalpositionofthecomputertothefrontortotherear

Chapter8.Locations77

Thefollowingillustrationshowsthatyoucanadjusttheheightofthemonitorstandwithinalengthof110.00
mm(4.33inches).

Note:Computerheightwiththemonitorstand:between283.50mm(11.16inches)and293.50mm(11.56
inches)

Figure7.Adjustingtheheightofthemonitorstand

Thefollowingillustrationshowsthatyoucanturnthecomputeratanangelof45°totheleftand45°tothe
right.

Figure8.Turningthecomputertotheleftortotheright

78ThinkCentreM93zHardwareMaintenanceManual

Machinetypeandmodellabel

Themachinetypeandmodellabelidentifiesyourcomputer.WhenyoucontactLenovoforhelp,themachine
typeandmodelinformationhelpssupporttechnicianstoidentifyyourcomputerandprovidefasterservice.

Thefollowingisasampleofthemachinetypeandmodellabel.

Figure9.Machinetypeandmodellabel

Chapter8.Locations79

80ThinkCentreM93zHardwareMaintenanceManual

Chapter9.ReplacingFRUs

ThischapterprovidesinstructionsaboutremovingorreplacingmajorFRUs.NotallFRUsaredocumented.

Important

BeforeyoureplaceanyFRU,readChapter2“Safetyinformation”onpage3.Theseprecautionsand
guidelineswillhelpyouworksafely.

FRUreplacementsaretobedonebytrainedservicetechniciansonly.

Handlingstatic-sensitivedevices

Donotopenthestatic-protectivepackagecontainingthenewpartuntilthedefectiveparthasbeenremoved
fromthecomputerandyouarereadytoinstallthenewpart.Staticelectricity,althoughharmlesstoyou,can
seriouslydamagecomputercomponentsandparts.

Whenyouhandlepartsandothercomputercomponents,taketheseprecautionstoavoidstatic-electricity
damage:

•Limityourmovement.Movementcancausestaticelectricitytobuilduparoundyou.

•Alwayshandlepartsandothercomputercomponentscarefully.HandlePCIcards,memorymodules,
systemboards,andmicroprocessorsbytheedges.Nevertouchanyexposedcircuitry.

•Preventothersfromtouchingthepartsandothercomputercomponents.

•Beforeyoureplaceanewpart,touchthestatic-protectivepackagecontainingtheparttoametal
expansion-slotcoverorotherunpaintedmetalsurfaceonthecomputerforatleasttwoseconds.This
reducesstaticelectricityfromthepackageandyourbody.

•Whenpossible,removethenewpartfromthestatic-protectivepackaging,andinstallitdirectlyinthe
computerwithoutsettingthepartdown.Whenthisisnotpossible,placethestatic-protectivepackage
thatthepartcameinonasmooth,levelsurfaceandplacethepartonit.

•Donotplacethepartonthecomputercoverorothermetalsurface.

Installingorreplacinghardware

Thissectionprovidesinstructionsonhowtoinstallorreplacehardwareforyourcomputer.Y oucanexpand
thecapabilitiesofyourcomputerandmaintainyourcomputerbyinstallingorreplacinghardware.

Attention:Donotopenyourcomputerorattemptanyrepairbeforereadingandunderstanding“Important
SafetyInformation”onpage1

Notes:

1.UseonlycomputerpartsprovidedbyLenovo.

2.Wheninstallingorreplacinganoption,usetheappropriateinstructionsinthissectionalongwiththe
instructionsthatcomewiththeoption.

.

Installingexternaloptions

Youcanconnectexternaloptionstoyourcomputer,suchasexternalspeakers,aprinter,orascanner.For
someexternaloptions,youmustinstalladditionalsoftwareinadditiontomakingthephysicalconnection.
Wheninstallinganexternaloption,see“Locatingconnectors,controls,andindicatorsonthefrontofyour
computer”onpage67and“Locatingconnectorsontherearofyourcomputer”onpage70toidentifythe

©CopyrightLenovo2013,2014

81

requiredconnector.Then,usetheinstructionsthatcomewiththeoptiontohelpyoumaketheconnection
andinstallanysoftwareordevicedriversthatarerequiredfortheoption.

Installingthemonitorstand

Attention:Donotopenyourcomputerorattemptanyrepairbeforereadingandunderstanding“Important

SafetyInformation”onpage1.

Thissectionprovidesinstructionsonhowtoinstallthemonitorstand.

Notes:

•Themonitorstandisavailableonlyinsomemodels.Ifyourcomputercomeswiththemonitorstand,the
instructionsonhowtoremovetheframestandalsoapplytotheremovalofthemonitorstand.

•Theframefootillustratedinthefollowinginstructionsisavailableonlyoncomputersthatcomewiththe
framestand.Ifyouremovetheframestandandinstallthemonitorstand,donotremovetheframefoot.

Toinstallthemonitorstand,dothefollowing:

1.Removeallmediafromthedrivesandturnoffallattacheddevicesandthecomputer.Then,disconnect
allpowercordsfromelectricaloutletsanddisconnectallcablesthatareconnectedtothecomputer.

2.Placeasoft,cleantowelorclothonthedeskorsurface.Holdthesidesofyourcomputerandgentlylay
itdownsothatthescreenisagainstthesurfaceandthecoverisfacingup.

3.Ifyourcomputerisinstalledwithaframestand,pressthereleasebuttontowardthetopofthecomputer
andlifttheframestandoffthecomputer.

Figure10.Removingtheframestand

4.T oinstallthemonitorstand,alignthetwoclipsonthetopofthemonitorstandwiththetwoholesin
thechassis,andthenpressthereleasebuttontowardthetopofthecomputeruntilthemonitorstand
issecuredinposition.

82ThinkCentreM93zHardwareMaintenanceManual

Figure11.Installingthemonitorstand

5.Afterinstallingthemonitorstand,pullupthecomputertotheverticalpositionandremovethemonitor
standlocktoadjusttheheightofthemonitorstand.Themonitorstandhasaheightadjustmentrangeof
110millimeters(4.33inches).

Chapter9.ReplacingFRUs83

Figure12.Removingthemonitorstandlock

6.Ifneeded,openthecablemanagerandroutethecablesconnectedtothecomputerthroughthecable
managertokeepyourworkspaceneat.

Whattodonext:

•Toworkwithanotherpieceofhardware,gototheappropriatesection.

•Tocompletetheinstallationorreplacement,goto“Completingthepartsreplacement”onpage126

Removingthecomputercover

Attention:Donotopenyourcomputerorattemptanyrepairbeforereadingandunderstanding“Important

SafetyInformation”onpage1.

Thissectionprovidesinstructionsonhowtoremovethecomputercover.

CAUTION:

Beforeyouopenthecomputercover,turnoffthecomputerandwaitseveralminutesuntilthe
computeriscool.

Toremovethecomputercover,dothefollowing:

1.Removeanymediafromthedrivesandturnoffallattacheddevicesandthecomputer.

2.Disconnectallpowercordsfromelectricaloutlets.

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

and“Locatingconnectorsontherearofyourcomputer”onpage70.

4.Removeanylockingdevicethatsecuresthecomputercover,suchasanaKensington-stylecablelock.

.

84ThinkCentreM93zHardwareMaintenanceManual

5.Placeasoft,cleantowelorclothonthedeskorsurface.Holdthesidesofyourcomputerandgentlylay
itdownsothatthescreenisagainstthesurfaceandthecoverisfacingup.

6.Removetheframestand.See“Installingthemonitorstand”onpage82.

7.Pressthetwocover-releasebuttonsonthecomputercoverasshown,slidethecomputercovertoward
thetopofthecomputer,andthenliftthecomputercoveruptoremoveitfromthechassis.

Figure13.Removingthecomputercover

Whattodonext:

•Toworkwithanotherpieceofhardware,gototheappropriatesection.

•Tocompletetheinstallationorreplacement,goto“Completingthepartsreplacement”onpage126.

Removingandreinstallingtheframefoot

Attention:Donotopenyourcomputerorattemptanyrepairbeforereadingandunderstanding“Important

SafetyInformation”onpage1.

Thissectionprovidesinstructionsonhowtoremoveandreinstalltheframefoot.

Note:Theframefootisavailableonlyinsomemodels.

Toremoveandreinstalltheframefoot,dothefollowing:

1.Removeallmediafromthedrivesandturnoffallattacheddevicesandthecomputer.Then,disconnect
allpowercordsfromelectricaloutletsanddisconnectallcablesthatareconnectedtothecomputer.

2.Placeasoft,cleantowelorclothonthedeskorsurface.Holdthesidesofyourcomputerandgentlylay
itdownsothatthescreenisagainstthesurfaceandthecoverisfacingup.

3.Removetheframestand.See“Installingthemonitorstand”onpage82.

4.Removethecomputercover.See“Removingthecomputercover”onpage84.

5.Locatetheframefoot.See“LocatingmajorFRUsandCRUs”onpage71.

6.Removethefourscrewsthatsecuretheframefoottothechassis,andthenslidetheframefootoutof
thechassis.

Chapter9.ReplacingFRUs85

Figure14.Removingtheframefoot

7.T oreinstalltheframefoot,alignthefourscrewholesintheframefootwiththoseinthechassis,andthen
installthescrewstosecuretheframefoottothechassis.

Whattodonext:

•Toworkwithanotherpieceofhardware,gototheappropriatesection.

•Tocompletetheinstallationorreplacement,goto“Completingthepartsreplacement”onpage126.

RemovingandreinstallingtherearI/Oassembly

Attention:Donotopenyourcomputerorattemptanyrepairbeforereadingandunderstanding“Important

SafetyInformation”onpage1.

ThissectionprovidesinstructionsonhowtoremoveandreinstalltherearI/Oassembly.

ToremoveandreinstalltherearI/Oassembly,dothefollowing:

1.Removeallmediafromthedrivesandturnoffallattacheddevicesandthecomputer.Then,disconnect
allpowercordsfromelectricaloutletsanddisconnectallcablesthatareconnectedtothecomputer.

2.Placeasoft,cleantowelorclothonthedeskorsurface.Holdthesidesofyourcomputerandgentlylay
itdownsothatthescreenisagainstthesurfaceandthecoverisfacingup.

3.Removethecomputercover.See“Removingthecomputercover”onpage84.

4.LocatetherearI/Oassembly.See“LocatingmajorFRUsandCRUs”onpage71.

5.Removethescrews1thatsecuretherearI/Oassemblytothechassis.Then,lifttherearI/Oassembly
upwardtoremoveitfromtherearI/Oassemblyslot.

86ThinkCentreM93zHardwareMaintenanceManual

Figure15.RemovingtherearI/Oassembly

6.T oreinstalltherearI/Oassembly,alignthescrewholesintherearI/Oassemblywiththoseinthe
chassis.Then,pressthetopoftherearI/Oassemblydownwarduntilitsnapsintoplace.

7.InstallthescrewstosecuretherearI/Oassemblytothechassis.

Whattodonext:

•Toworkwithanotherpieceofhardware,gototheappropriatesection.

•Tocompletetheinstallationorreplacement,goto“Completingthepartsreplacement”onpage126.

Installingorreplacingamemorymodule

Attention:Donotopenyourcomputerorattemptanyrepairbeforereadingandunderstanding“Important

SafetyInformation”onpage1.

Thissectionprovidesinstructionsonhowtoinstallorreplaceamemorymodule.

Yourcomputerhastwoslotsforinstallingorreplacingdoubledatarate3smalloutlinedualinlinememory
modules(DDR3SODIMMs)thatprovideuptoamaximumof16GBsystemmemory.Wheninstalling
orreplacingamemorymodule,use2GB,4GBor8GBDDR3SODIMMsinanycombinationupto
amaximumof16GB.

Toinstallorreplaceamemorymodule,dothefollowing:

1.Removeallmediafromthedrivesandturnoffallattacheddevicesandthecomputer.Then,disconnect
allpowercordsfromelectricaloutletsanddisconnectallcablesthatareconnectedtothecomputer.

2.Placeasoft,cleantowelorclothonthedeskorsurface.Holdthesidesofyourcomputerandgentlylay
itdownsothatthescreenisagainstthesurfaceandthecoverisfacingup.

3.Removetheframestand.See“Installingthemonitorstand”onpage82.

4.Removethecomputercover.See“Removingthecomputercover”onpage84.

Chapter9.ReplacingFRUs87

5.Locatethememorymodules.See“LocatingmajorFRUsandCRUs”onpage71.

6.Opentheretainingclips.Ifyouarereplacinganoldmemorymodule,opentheretainingclipsand
removethememorymodulebeingreplacedasshown.

Figure16.Removingthememorymodule

7.Insertthenotchedend2ofthenewmemorymoduleintotheslot1.Pressthememorymodule
firmlyandpivotthememorymoduleuntilitsnapsintoplace.Makesurethatthememorymoduleis
securedintheslotanddoesnotmoveeasily.

Figure17.Installingamemorymodule

Whattodonext:

•Toworkwithanotherpieceofhardware,gototheappropriatesection.

•Tocompletetheinstallationorreplacement,goto“Completingthepartsreplacement”onpage126.

Replacingtheharddiskdrive

Attention:Donotopenyourcomputerorattemptanyrepairbeforereadingandunderstanding“Important

SafetyInformation”onpage1

Thissectionprovidesinstructionsonhowtoreplacetheharddiskdrive.

Toreplacetheharddiskdrive,dothefollowing:

1.Removeallmediafromthedrivesandturnoffallattacheddevicesandthecomputer.Then,disconnect
allpowercordsfromelectricaloutletsanddisconnectallcablesthatareconnectedtothecomputer.

88ThinkCentreM93zHardwareMaintenanceManual

.

2.Placeasoft,cleantowelorclothonthedeskorsurface.Holdthesidesofyourcomputerandgentlylay
itdownsothatthescreenisagainstthesurfaceandthecoverisfacingup.

3.Removethecomputercover.See“Removingthecomputercover”onpage84.

4.Locatetheharddiskdriveinthecomputer.See“LocatingmajorFRUsandCRUs”onpage71.

5.Presstheclipsoftheharddiskdrivebracketinwardandthenslidetheharddiskdrivetotheleftto
removeitfromthechassis.

Figure18.Removingtheharddiskdrive

6.Flexthesidesoftheharddiskdrivebracketproperlytoremovetheharddiskdriveoutofthebracket.

7.T oinstallthenewharddiskdriveintothebracket,flexthebracketandalignpin1,pin2,pin3,andpin

4onthebracketwiththecorrespondingholesintheharddiskdrive.

Figure19.Installingtheharddiskdriveintothebracket

8.Alignthefourpinsontheharddiskdrivebracketwiththecorrespondingclipsinthechassisandslide
theharddiskdrivebrackettotherightuntilitsnapsintoposition.

Chapter9.ReplacingFRUs89

Figure20.Installingtheharddiskdrive

Whattodonext:

•Toworkwithanotherpieceofhardware,gototheappropriatesection.

•Tocompletetheinstallationorreplacement,goto“Completingthepartsreplacement”onpage126.

Replacingtheopticaldrive

Attention:Donotopenyourcomputerorattemptanyrepairbeforereadingandunderstanding“Important

SafetyInformation”onpage1

Thissectionprovidesinstructionsonhowtoreplacetheopticaldrive.

Note:Theopticaldriveisavailableonlyinsomemodels.

Toreplacetheopticaldrive,dothefollowing:

1.Removeallmediafromthedrivesandturnoffallattacheddevicesandthecomputer.Then,disconnect
allpowercordsfromelectricaloutletsanddisconnectallcablesthatareconnectedtothecomputer.

2.Placeasoft,cleantowelorclothonthedeskorsurface.Holdthesidesofyourcomputerandgentlylay
itdownsothatthescreenisagainstthesurfaceandthecoverisfacingup.

3.Removethecomputercover.See“Removingthecomputercover”onpage84.

4.Locatetheopticaldrive.See“LocatingmajorFRUsandCRUs”onpage71.

5.Presstheopticaldrivereleasebutton1towardthetopofthecomputerandthenslidetheopticaldrive
outoftheopticaldrivebay.

.

90ThinkCentreM93zHardwareMaintenanceManual

Figure21.Removingtheopticaldrive

6.T oinstallanewopticaldrive,slidethenewopticaldriveintotheopticaldrivebayuntilitsnapsinto
position.

Figure22.Installingtheopticaldrive

Whattodonext:

•Toworkwithanotherpieceofhardware,gototheappropriatesection.

•Tocompletetheinstallationorreplacement,goto“Completingthepartsreplacement”onpage126.

Replacingtheconverterboard

Attention:Donotopenyourcomputerorattemptanyrepairbeforereadingandunderstanding“Important

SafetyInformation”onpage1.

Thissectionprovidesinstructionsonhowtoreplacetheconverterboard.

Toreplacetheconverterboard,dothefollowing:

Chapter9.ReplacingFRUs91

1.Removeallmediafromthedrivesandturnoffallattacheddevicesandthecomputer.Then,disconnect
allpowercordsfromelectricaloutletsanddisconnectallcablesthatareconnectedtothecomputer.

2.Placeasoft,cleantowelorclothonthedeskorsurface.Holdthesidesofyourcomputerandgentlylay
itdownsothatthescreenisagainstthesurfaceandthecoverisfacingup.

3.Removethecomputercover.See“Removingthecomputercover”onpage84.

4.Removetheopticaldrive.See“Replacingtheopticaldrive”onpage90.

5.Locatetheconverterboard.See“LocatingmajorFRUsandCRUs”onpage71.

6.Removethethreescrews1thatsecuretheconverterboardtothechassisanddisconnectthecables.
Then,lifttheconverterboardoffthechassis.

Figure23.Removingtheconverterboard

7.Connectthecablestothenewconverterboardandalignthethreescrewholesinthenewconverter
boardwiththoseinthechassis.

8.Installthethreescrewstosecurethenewconverterboardtothechassis.

9.Reinstalltheopticaldrive.See“Replacingtheopticaldrive”onpage90.

Whattodonext:

•Toworkwithanotherpieceofhardware,gototheappropriatesection.

•Tocompletetheinstallationorreplacement,goto“Completingthepartsreplacement”onpage126

Replacingtheheatsink

Attention:Donotopenyourcomputerorattemptanyrepairbeforereadingandunderstanding“Important

SafetyInformation”onpage1

Thissectionprovidesinstructionsonhowtoreplacetheheatsink.

CAUTION:

Theheatsinkmightbeveryhot.Beforeyouopenthecomputercover,turnoffthecomputerand
waitseveralminutesuntilthecomputeriscool.

Toreplacetheheatsink,dothefollowing:

.

.

92ThinkCentreM93zHardwareMaintenanceManual

1.Removeallmediafromthedrivesandturnoffallattacheddevicesandthecomputer.Then,disconnect
allpowercordsfromelectricaloutletsanddisconnectallcablesthatareconnectedtothecomputer.

2.Placeasoft,cleantowelorclothonthedeskorsurface.Holdthesidesofyourcomputerandgentlylay
itdownsothatthescreenisagainstthesurfaceandthecoverisfacingup.

3.Removethecomputercover.See“Removingthecomputercover”onpage84.

4.Locatetheheatsink.See“LocatingmajorFRUsandCRUs”onpage71.

5.Followthissequencetoremovethefourscrewsthatsecuretheheatsinktothesystemboard:
a.Partiallyremovescrew1,thenfullyremovescrew2,andthenfullyremovescrew1.
b.Partiallyremovescrew3,thenfullyremovescrew4,andthenfullyremovescrew3.

Note:Carefullyremovethefourscrewsfromthesystemboardtoavoidanypossibledamagetothe
systemboard.Thefourscrewscannotberemovedfromtheheatsink.

Figure24.Removingtheheatsink

6.Removethefailingheatsinkoffthesystemboard.

Notes:

a.Youmighthavetogentlytwisttheheatsinktofreeitfromthemicroprocessor.
b.Donottouchthethermalgreasewhilehandlingtheheatsink.

7.Positionthenewheatsinkonthesystemboardsothatthefourscrewsarealignedwiththe
correspondingholesinthesystemboard.

8.Followthissequencetoinstallthefourscrewstosecuretheheatsink,asshowninFigure24“Removing
theheatsink”onpage93.

a.Partiallytightenscrew1,thenfullytightenscrew2,andthenfullytightenscrew1.
b.Partiallytightenscrew3,thenfullytightenscrew4,andthenfullytightenscrew3.

Chapter9.ReplacingFRUs93

Whattodonext:

•Toworkwithanotherpieceofhardware,gototheappropriatesection.

•Tocompletetheinstallationorreplacement,goto“Completingthepartsreplacement”onpage126.

Replacingthemicroprocessor

Attention:Donotopenyourcomputerorattemptanyrepairbeforereadingandunderstanding“Important

SafetyInformation”onpage1.

Thissectionprovidesinstructionsonhowtoreplacethemicroprocessor.

CAUTION:

Theheatsinkandmicroprocessormightbeveryhot.Beforeyouopenthecomputercover,turnoff
thecomputerandwaitseveralminutesuntilthecomputeriscool.

Toreplacethemicroprocessor,dothefollowing:

1.Removeallmediafromthedrivesandturnoffallattacheddevicesandthecomputer.Then,disconnect
allpowercordsfromelectricaloutletsanddisconnectallcablesthatareconnectedtothecomputer.

2.Placeasoft,cleantowelorclothonthedeskorsurface.Holdthesidesofyourcomputerandgentlylay
itdownsothatthescreenisagainstthesurfaceandthecoverisfacingup.

3.Removethecomputercover.See“Removingthecomputercover”onpage84.

4.Locatethesystemboardanddisconnectallcablesconnectedtothesystemboard.See“Locating
partsonthesystemboard”onpage74.

5.Removetheheatsinktogainaccesstothemicroprocessor.See“Replacingtheheatsink”onpage92.

Note:Placetheheatsinkonitssidesothatthethermalgreaseonthebottomofitdoesnotgetin
contactwithanything.

94ThinkCentreM93zHardwareMaintenanceManual

6.Liftthesmallhandle1andopentheretainer2toaccessthemicroprocessor3.

Figure25.Accessingthemicroprocessor

7.Liftthemicroprocessorstraightupandoutofthemicroprocessorsocket.

Figure26.Removingthemicroprocessor

Notes:

a.Yourmicroprocessorandsocketmightlookdifferentfromtheoneillustrated.

Chapter9.ReplacingFRUs95

b.Notetheorientationofthemicroprocessorinthesocket.Youcaneitherlookforthesmalltriangle1

ononecornerofthemicroprocessorornotetheorientationofthenotches2onthemicroprocessor.
Thisisimportantwheninstallingthenewmicroprocessoronthesystemboard.

c.Touchonlytheedgesofthemicroprocessor.Donottouchthegoldcontactsonthebottom.
d.Donotdropanythingontothemicroprocessorsocketwhileitisexposed.Thesocketpinsmustbe

keptascleanaspossible.

8.Makesurethatthesmallhandleisintheraisedpositionandthemicroprocessorretainerisfullyopen.

9.Removetheprotectivecoverthatprotectsthegoldcontactsofthenewmicroprocessor.

10.Holdthenewmicroprocessorbyitssidesandalignthesmalltriangleononecornerofthenew
microprocessorwiththecorrespondingsmalltriangleononecornerofthemicroprocessorsocket.

11.Lowerthenewmicroprocessorstraightdownintothemicroprocessorsocketonthesystemboard.

Figure27.Installingthemicroprocessor

12.Closethemicroprocessorretainerandlockitintopositionwiththesmallhandletosecurethenew
microprocessorinthesocket.

13.Reinstalltheheatsink.See“Replacingtheheatsink”onpage92.

14.Reconnectallcablesthatweredisconnectedfromthesystemboard.

96ThinkCentreM93zHardwareMaintenanceManual