Lenovo 10AY008CUS User manual

ThinkCentreM73 UserGuide
MachineTypes:10AX,10AY,10DK,10DL,10DM,and10DN
Note:Beforeusingthisinformationandtheproductitsupports,besuretoreadandunderstandthe
“Importantsafetyinformation”onpagev
andAppendixA“Notices”onpage129.
ThirdEdition(June2014)
©CopyrightLenovo2013,2014.
Contents
Importantsafetyinformation......v
Serviceandupgrades.............v
Staticelectricityprevention...........v
Powercordsandpoweradapters........vi
Extensioncordsandrelateddevices.......vi
Plugsandoutlets..............vii
Externaldevices..............vii
Generalbatterynotice............vii
Rechargeablebatterynotice.........viii
Heatandproductventilation.........viii
Operatingenvironment............ix
Lasercompliancestatement..........ix
Powersupplystatement............x
Cleaningandmaintenance...........x
Chapter1.Productoverview......1
Features..................1
Specifications................4
Lenovoprograms..............4
AccessingLenovoprogramsontheWindows
7operatingsystem............4
AccessingLenovoprogramsontheWindows
8orWindows8.1operatingsystem.....5
AnintroductiontoLenovoprograms.....6
Locations..................8
Locatingconnectors,controls,andindicators
onthefrontofyourcomputer........8
Locatingconnectorsontherearofyour
computer...............10
Locatingcomponents..........12
Locatingpartsonthesystemboard....13
Machinetypeandmodellabel.......14
Chapter2.Usingyourcomputer...15
Frequentlyaskedquestions.........15
NavigatingamongscreensontheWindows8and
Windows8.1operatingsystems........16
NavigatingonWindows8........16
NavigatingonWindows8.1........17
AccessingControlPanelontheWindows8or
Windows8.1operatingsystem........18
Usingthekeyboard.............19
UsingWindowsshortcutkeys.......19
Usingafingerprintreader........19
Usingthewheelmouse...........20
Adjustingaudio..............20
Aboutyourcomputeraudio........20
Settingthevolumefromthedesktop....20
SettingthevolumefromControlPanel...21
UsingCDsandDVDs............21
HandlingandstoringCDandDVDmedia..22
PlayingaCDorDVD..........22
RecordingaCDorDVD.........22
Chapter3.Y ouandyourcomputer..25
Accessibilityandcomfort..........25
Arrangingyourworkspace........25
Comfort...............25
Glareandlighting............26
Aircirculation.............26
Electricaloutletsandcablelengths.....26
Accessibilityinformation.........26
Registeringyourcomputer..........30
Movingyourcomputertoanothercountryor
region..................30
Chapter4.Security..........31
Securityfeatures..............31
AttachingaKensington-stylecablelock.....32
Usingpasswords..............32
BIOSpasswords............32
Windowspasswords..........33
Configuringthefingerprintreader.......33
Usingandunderstandingfirewalls.......33
Protectingdataagainstviruses........33
Chapter5.Installingorreplacing
hardware...............35
Handlingstatic-sensitivedevices.......35
Installingorreplacinghardware........35
Installingexternaloptions........35
Installingorremovingtheacpoweradapter.36
Installingorremovingtheverticalstand...37
InstallingorremovingtheVESAmount
bracket................39
Installingorremovingtheacpoweradapter
bracket................41
Replacingtheopticaldrive........43
Replacingthesecondaryharddiskdrive...48
InstallingorremovingtheI/Obox.....54
Removingthecomputercover.......57
Installingorremovingtheharddiskdrive
assembly...............59
Installingorreplacingamemorymodule...61
Replacingthebattery..........62
ReplacingthePowerbuttonboard.....64
©CopyrightLenovo2013,2014
i
ReplacingtheWi-Ficardmodule......65
InstallingorremovingthefrontWi-Fi
antenna...............67
InstallingorremovingtherearWi-Fiantenna.69
Replacingtheinternalspeaker.......71
Replacingthecoverpresenceswitch....73
Replacingthesystemfan.........75
Replacingthethermalmodule.......77
Replacingthemicroprocessor.......79
Replacingthekeyboardormouse.....81
Completingthepartsreplacement.....82
ICEthermalalert..............98
ExitingtheSetupUtilityprogram.......98
Chapter8.Updatingsystem
programs...............99
Usingsystemprograms...........99
Updating(flashing)theBIOSfromadisc....99
Updating(flashing)theBIOSfromyouroperating
system..................100
RecoveringfromaPOST/BIOSupdatefailure..100
Recoveringfromasystemimagefailure.....101
Chapter6.Recoveryinformation...85
RecoveryinformationfortheWindows7operating
system..................85
Creatingandusingrecoverymedia.....85
Performingbackupandrecoveryoperations.86 UsingtheRescueandRecoveryworkspace.87
Creatingandusingarescuemedium....88
Reinstallingpreinstalledapplicationsand
devicedrivers.............89
Reinstallingsoftwareprograms......90
Reinstallingdevicedrivers........90
Solvingrecoveryproblems........90
RecoveryinformationfortheWindows8or
Windows8.1operatingsystem........91
Refreshingyourcomputer........91
Resettingyourcomputertothefactorydefault
settings................91
Usingtheadvancedstartupoptions....91
RecoveringyouroperatingsystemifWindows
8orWindows8.1failstostart.......92
Chapter7.UsingtheSetupUtility
program................93
StartingtheSetupUtilityprogram.......93
Viewingandchangingsettings........93
Usingpasswords..............93
Passwordconsiderations.........94
Power-OnPassword..........94
AdministratorPassword.........94
HardDiskPassword...........94
Setting,changing,anddeletingapassword.94 Erasinglostorforgottenpasswords(clearing
CMOS)................95
Enablingordisablingadevice........95
Selectingastartupdevice..........96
Selectingatemporarystartupdevice....96
Selectingorchangingthestartupdevice
sequence...............96
EnablingErPLPScompliancemode......96
ICEperformancemode...........97
Chapter9.Preventingproblems..103
Keepingyourcomputercurrent........103
Gettingthelatestdevicedriversforyour
computer...............103
Updatingyouroperatingsystem......103
UsingSystemUpdate..........104
Cleaningandmaintenance..........104
Basics................104
Cleaningyourcomputer.........105
Goodmaintenancepractices.......106
Movingyourcomputer...........106
Chapter10.T roubleshootingand
diagnostics.............107
Basictroubleshooting............107
Troubleshootingprocedure..........108
Troubleshooting..............108
Audioproblems............109
CDproblems.............110
DVDproblems.............111
Intermittentproblems..........113
Keyboard,mouse,orpointingdevice
problems...............113
Monitorproblems............115
Networkingproblems..........117
Optionproblems............119
Performanceandlockupproblems.....120
Printerproblems............122
Serialconnectorproblems........122
Softwareproblems...........123
USBproblems.............124
LenovoSolutionCenter...........124
Chapter11.Gettinginformation,help,
andservice.............125
Informationresources............125
LenovoThinkVantageT ools........125
HelpandSupport............125
SafetyandWarranty...........125
LenovoWebsite............125
iiThinkCentreM73UserGuide
LenovoSupportWebsite.........126
Helpandservice..............126
Usingthedocumentationanddiagnostic
program...............126
Callingforservice............126
Usingotherservices..........127
Purchasingadditionalservices......127
AppendixA.Notices.........129
Trademarks................130
AppendixB.Regulatory
information.............131
Exportclassificationnotice..........131
Electronicemissionsnotices.........131
FederalCommunicationsCommission
DeclarationofConformity........131
Eurasiancompliancemark..........133
Brazilregulatorynotice...........133
Mexicoregulatorynotice...........133
Additionalregulatoryinformation.......133
AppendixC.WEEEandrecycling
information.............135
ImportantWEEEinformation.........135
RecyclinginformationforJapan........135
RecyclinginformationforBrazil........136
BatteryrecyclinginformationforT aiwan.....136
BatteryrecyclinginformationfortheEuropean
Union..................136
AppendixD.RestrictionofHazardous
SubstancesDirective(RoHS)....139
EuropeanUnionRoHS...........139
ChinaRoHS................139
TurkishRoHS...............139
UkraineRoHS...............140
IndiaRoHS................140
AppendixE.ChinaEnergyLabel..141
AppendixF.ENERGYSTARmodel
information.............143
Index.................145
©CopyrightLenovo2013,2014
iii
ivThinkCentreM73UserGuide

Importantsafetyinformation

CAUTION: Beforeusingthismanual,besuretoreadandunderstandalltherelatedsafetyinformationforthis product.RefertotheinformationinthissectionandthesafetyinformationintheSafety,Warranty,and SetupGuidethatyoureceivedwiththisproduct.Readingandunderstandingthissafetyinformation reducestheriskofpersonalinjuryanddamagetoyourproduct.
IfyounolongerhaveacopyoftheSafety,Warranty,andSetupGuide,youcanobtainaPortableDocument Format(PDF)versionfromtheLenovo SupportWebsitealsoprovidestheSafety,Warranty,andSetupGuideandthisUserGuideinadditional languages.
®
SupportWebsiteathttp://www.lenovo.com/support.TheLenovo

Serviceandupgrades

DonotattempttoserviceaproductyourselfunlessinstructedtodosobytheCustomerSupportCenteror yourdocumentation.OnlyuseaServiceProviderwhoisapprovedtorepairyourparticularproduct.
Note:Somecomputerpartscanbeupgradedorreplacedbythecustomer.Upgradestypicallyare referredtoasoptions.ReplacementpartsapprovedforcustomerinstallationarereferredtoasCustomer ReplaceableUnits,orCRUs.Lenovoprovidesdocumentationwithinstructionswhenitisappropriatefor customerstoinstalloptionsorreplaceCRUs.Youmustcloselyfollowallinstructionswheninstallingor replacingparts.TheOffstateofapowerindicatordoesnotnecessarilymeanthatvoltagelevelsinsidea productarezero.Beforeyouremovethecoversfromaproductequippedwithapowercord,alwaysmake surethatthepoweristurnedoffandthattheproductisunpluggedfromanypowersource.Formore informationonCRUs,refertoChapter5“Installingorreplacinghardware”onpage35 questionsorconcerns,contacttheCustomerSupportCenter.
Althoughtherearenomovingpartsinyourcomputerafterthepowercordhasbeendisconnected,the followingwarningsarerequiredforyoursafety.
CAUTION:
.Ifyouhaveany
Hazardousmovingparts.Keepfingersandotherbodypartsaway.
CAUTION:
Beforeyouopenthecomputercover,turnoffthecomputerandwaitseveralminutesuntilthe computeriscool.

Staticelectricityprevention

Staticelectricity,althoughharmlesstoyou,canseriouslydamagecomputercomponentsandoptions. Improperhandlingofstatic-sensitivepartscancausedamagetothepart.Whenyouunpackanoption
©CopyrightLenovo2013,2014
v
orCRU,donotopenthestatic-protectivepackagecontainingthepartuntiltheinstructionsdirectyou toinstallit.
WhenyouhandleoptionsorCRUs,orperformanyworkinsidethecomputer,takethefollowingprecautions toavoidstatic-electricitydamage:
•Limityourmovement.Movementcancausestaticelectricitytobuilduparoundyou.
•Alwayshandlecomponentscarefully.Handleadapters,memorymodules,andothercircuitboardsbythe edges.Nevertouchexposedcircuitry.
•Preventothersfromtouchingcomponents.
•Whenyouinstallastatic-sensitiveoptionorCRU,touchthestatic-protectivepackagecontainingthe parttoametalexpansion-slotcoverorotherunpaintedmetalsurfaceonthecomputerforatleasttwo seconds.Thisreducesstaticelectricityinthepackageandyourbody.
•Whenpossible,removethestatic-sensitivepartfromthestatic-protectivepackagingandinstallthepart withoutsettingitdown.Whenthisisnotpossible,placethestatic-protectivepackagingonasmooth, levelsurfaceandplacethepartonit.
•Donotplacethepartonthecomputercoverorothermetalsurface.

Powercordsandpoweradapters

Useonlythepowercordsandpoweradapterssuppliedbytheproductmanufacturer.
Thepowercordsshallbesafetyapproved.ForGermany,itshallbeH05VV-F,3G,0.75mm othercountries,thesuitabletypesshallbeusedaccordingly.
Neverwrapapowercordaroundapoweradapterorotherobject.Doingsocanstressthecordinwaysthat cancausethecordtofray,crack,orcrimp.Thiscanpresentasafetyhazard.
Alwaysroutepowercordssothattheywillnotbewalkedon,trippedover,orpinchedbyobjects.
Protectpowercordandpoweradaptersfromliquids.Forinstance,donotleaveyourpowercordorpower adapternearsinks,tubs,toilets,oronfloorsthatarecleanedwithliquidcleansers.Liquidscancausea shortcircuit,particularlyifthepowercordorpoweradapterhasbeenstressedbymisuse.Liquidsalsocan causegradualcorrosionofpowercordterminalsand/ortheconnectorterminalsonapoweradapter, whichcaneventuallyresultinoverheating.
Ensurethatallpowercordconnectorsaresecurelyandcompletelypluggedintoreceptacles.
Donotuseanypoweradapterthatshowscorrosionattheacinputpinsorshowssignsofoverheating(such asdeformedplastic)attheacinputoranywhereonthepoweradapter.
Donotuseanypowercordswheretheelectricalcontactsoneitherendshowsignsofcorrosionor overheatingorwherethepowercordappearstohavebeendamagedinanyway.
2
,orbetter.For

Extensioncordsandrelateddevices

Ensurethatextensioncords,surgeprotectors,uninterruptiblepowersupplies,andpowerstripsthatyouuse areratedtohandletheelectricalrequirementsoftheproduct.Neveroverloadthesedevices.Ifpowerstrips areused,theloadshouldnotexceedthepowerstripinputrating.Consultanelectricianformoreinformation ifyouhavequestionsaboutpowerloads,powerrequirements,andinputratings.
viThinkCentreM73UserGuide

Plugsandoutlets

Ifareceptacle(poweroutlet)thatyouintendtousewithyourcomputerequipmentappearstobedamaged orcorroded,donotusetheoutletuntilitisreplacedbyaqualifiedelectrician.
Donotbendormodifytheplug.Iftheplugisdamaged,contactthemanufacturertoobtainareplacement.
Donotshareanelectricaloutletwithotherhomeorcommercialappliancesthatdrawlargeamountsof electricity;otherwise,unstablevoltagemightdamageyourcomputer,data,orattacheddevices.
Someproductsareequippedwithathree-prongedplug.Thisplugfitsonlyintoagroundedelectricaloutlet. Thisisasafetyfeature.Donotdefeatthissafetyfeaturebytryingtoinsertitintoanon-groundedoutlet.If youcannotinserttheplugintotheoutlet,contactanelectricianforanapprovedoutletadapterortoreplace theoutletwithonethatenablesthissafetyfeature.Neveroverloadanelectricaloutlet.Theoverallsystem loadshouldnotexceed80percentofthebranchcircuitrating.Consultanelectricianformoreinformation ifyouhavequestionsaboutpowerloadsandbranchcircuitratings.
Besurethatthepoweroutletyouareusingisproperlywired,easilyaccessible,andlocatedclosetothe equipment.Donotfullyextendpowercordsinawaythatwillstressthecords.
Besurethatthepoweroutletprovidesthecorrectvoltageandcurrentfortheproductyouareinstalling.
Carefullyconnectanddisconnecttheequipmentfromtheelectricaloutlet.

Externaldevices

DonotconnectordisconnectanyexternaldevicecablesotherthanUniversalSerialBus(USB)and1394 cableswhilethecomputerpowerison;otherwise,youmightdamageyourcomputer.Toavoidpossible damagetoattacheddevices,waitatleastfivesecondsafterthecomputerisshutdowntodisconnect externaldevices.

Generalbatterynotice

DANGER
PersonalcomputersmanufacturedbyLenovomightcontainacoincellbatteryandarechargeable batterypacktothesystem.BatteriessuppliedbyLenovoforusewithyourproducthavebeen testedforcompatibilityandshouldonlybereplacedwithapprovedparts.
Neverattempttoopenorserviceanybattery.Donotcrush,puncture,orincineratebatteriesor shortcircuitthemetalcontacts.Donotexposethebatterytowaterorotherliquids.Onlyrecharge thebatterypackstrictlyaccordingtoinstructionsincludedintheproductdocumentation.
Batteryabuseormishandlingcancausethebatterytooverheat,whichcancausegassesorflame to“vent”fromthebatterypackorcoincell.Ifyourbatteryisdamaged,orifyounoticeany dischargefromyourbatteryorthebuildupofforeignmaterialsonthebatteryleads,stopusingthe batteryandobtainareplacementfromthebatterymanufacturer.
Batteriescandegradewhentheyareleftunusedforlongperiodsoftime.Forsomerechargeable batteries(particularlyLithiumIonbatteries),leavingabatteryunusedinadischargedstatecould increasetheriskofabatteryshortcircuit,whichcouldshortenthelifeofthebatteryandalsocan
©CopyrightLenovo2013,2014
vii
poseasafetyhazard.DonotletrechargeableLithium-Ionbatteriescompletelydischargeorstore thesebatteriesinadischargedstate.

Rechargeablebatterynotice

DANGER
Donotattempttodisassembleormodifythebatterypack.Attemptingtodosocancausean explosion,orliquidleakagefromthebatterypack.Abatterypackotherthantheonespecifiedby Lenovo,oradisassembledormodifiedbatterypackisnotcoveredbythewarranty.
Iftherechargeablebatterypackisincorrectlyreplaced,thereisdangerofanexplosion.Thebattery packcontainsasmallamountofharmfulsubstances.Toavoidpossibleinjury:
•ReplaceonlywithabatteryofthetyperecommendedbyLenovo.
•Keepthebatterypackawayfromfire.
•Donotexposeittowaterorrain.
•Donotattempttodisassembleit.
•Donotshort-circuitit.
•Keepitawayfromchildren.
•Donotdropthebatterypack.
Donotputthebatterypackintrashthatisdisposedofinlandfills.Whendisposingofthebattery, complywithlocalordinancesorregulations.
Thebatterypackshouldbestoredatroomtemperature,chargedtoapproximately30to50% ofcapacity.Werecommendthatbatterypackbechargedaboutonceperyeartoprevent overdischarge.

Heatandproductventilation

Computers,poweradapters,andmanyaccessoriescangenerateheatwhenturnedonandwhenbatteries arecharging.Alwaysfollowthesebasicprecautions:
•Donotleaveyourcomputer,poweradapter,oraccessoriesincontactwithyourlaporanypartofyour bodyforanextendedperiodwhentheproductsarefunctioningorwhenthebatteryischarging.Y our computer,poweradapter,andmanyaccessoriesproducesomeheatduringnormaloperation.Extended contactwiththebodycouldcausediscomfortor,potentially,askinburn.
•Donotchargethebatteryoroperateyourcomputer,poweradapter,oraccessoriesnearflammable materialsorinexplosiveenvironments.
•Ventilationslots,fans,andheatsinksareprovidedwiththeproductforsafety,comfort,andreliable operation.Thesefeaturesmightinadvertentlybecomeblockedbyplacingtheproductonabed,sofa, carpet,orotherflexiblesurface.Neverblock,cover,ordisablethesefeatures.
Inspectyourdesktopcomputerfordustaccumulationatleastonceeverythreemonths.Beforeinspecting yourcomputer,turnoffthepowerandunplugthecomputer'spowercordfromtheelectricaloutlet;then removeanydustfromventsandperforationsinthebezel.Ifyounoticeexternaldustaccumulation,then examineandremovedustfromtheinsideofthecomputerincludingheatsinkinletfins,powersupplyvents, andfans.Alwaysturnoffandunplugthecomputerbeforeopeningthecover.Ifpossible,avoidoperating yourcomputerwithintwofeetofhigh-trafficareas.Ifyoumustoperateyourcomputerinornearahigh-traffic area,inspectand,ifnecessary,cleanyourcomputermorefrequently.
viiiThinkCentreM73UserGuide
Foryoursafetyandtomaintainoptimumcomputerperformance,alwaysfollowthesebasicprecautions withyourdesktopcomputer:
•Keepthecoverclosedwheneverthecomputerispluggedin.
•Regularlyinspecttheoutsideofthecomputerfordustaccumulation.
•Removedustfromventsandanyperforationsinthebezel.Morefrequentcleaningsmightberequiredfor computersindustyorhigh-trafficareas.
•Donotrestrictorblockanyventilationopenings.
•Donotstoreoroperateyourcomputerinsidefurniture,asthismightincreasetheriskofoverheating.
•Airflowtemperaturesintothecomputershouldnotexceed35°C(95°F).
•Donotinstallairfiltrationdevices.Theymayinterferewithpropercooling.

Operatingenvironment

Theoptimalenvironmentinwhichtouseyourcomputeris10°C-35°C(50°F-95°F)withhumidityranging between35%and80%.Ifyourcomputerisstoredortransportedintemperatureslessthan10°C(50°F), allowthecoldcomputertoriseslowlytoanoptimaloperatingtemperatureof10°C-35°C(50°F-95°F)before use.Thisprocesscouldtaketwohoursinextremeconditions.Failuretoallowyourcomputertorisetoan optimaloperatingtemperaturebeforeusecouldresultinirreparabledamagetoyourcomputer.
Ifpossible,placeyourcomputerinawell-ventilatedanddryareawithoutdirectexposuretosunshine.
Keepelectricalappliancessuchasanelectricfan,radio,high-poweredspeakers,airconditioner,and microwaveovenawayfromyourcomputerbecausethestrongmagneticfieldsgeneratedbythese appliancescandamagethemonitoranddataontheharddiskdrive.
Donotplaceanybeveragesontopoforbesidethecomputerorotherattacheddevices.Ifliquidisspilledon orinthecomputeroranattacheddevice,ashortcircuitorotherdamagemightoccur.
Donoteatorsmokeoveryourkeyboard.Particlesthatfallintoyourkeyboardcancausedamage.

Lasercompliancestatement

CAUTION: Whenlaserproducts(suchasCD-ROMs,DVDdrives,fiberopticdevices,ortransmitters)are installed,notethefollowing:
•Donotremovethecovers.Removingthecoversofthelaserproductcouldresultinexposureto hazardouslaserradiation.Therearenoserviceablepartsinsidethedevice.
•Useofcontrolsoradjustmentsorperformanceofproceduresotherthanthosespecifiedherein mightresultinhazardousradiationexposure.
DANGER
SomelaserproductscontainanembeddedClass3AorClass3Blaserdiode.Notethefollowing:
Laserradiationwhenopen.Donotstareintothebeam,donotviewdirectlywithoptical instruments,andavoiddirectexposuretothebeam.
©CopyrightLenovo2013,2014
ix

Powersupplystatement

Neverremovethecoveronapowersupplyoranypartthathasthefollowinglabelattached.
Hazardousvoltage,current,andenergylevelsarepresentinsideanycomponentthathasthislabelattached. Therearenoserviceablepartsinsidethesecomponents.Ifyoususpectaproblemwithoneoftheseparts, contactaservicetechnician.

Cleaningandmaintenance

Keepyourcomputerandworkspaceclean.Shutdownthecomputerandthendisconnectthepower cordbeforecleaningthecomputer.Donotsprayanyliquiddetergentdirectlyonthecomputeroruse anydetergentcontainingflammablematerialtocleanthecomputer.Spraythedetergentonasoftcloth andthenwipethecomputersurfaces.
xThinkCentreM73UserGuide

Chapter1.Productoverview

Thischapterprovidesinformationaboutthecomputerfeatures,specifications,softwareprogramsprovided byLenovo,andlocationsofconnectors,components,partsonthesystemboard,andinternaldrives.

Features

Thissectionintroducesthecomputerfeatures.Theinformationcoversavarietyofmodels.
Toviewtheinformationaboutyourspecificmodel,dooneofthefollowing:
•GointotheSetupUtilityprogrambyfollowingtheinstructionsinChapter7“UsingtheSetupUtility program”onpage93
•OntheMicrosoft toviewtheinformation.
•OntheMicrosoftWindows8orWindows8.1operatingsystem,gotothedesktopandmoveyourpointer tothetop-rightorbottom-rightcornerofthescreentodisplaythecharms.ThenclickSettingsPC
infotoviewtheinformation.
Microprocessor
Toviewthemicroprocessorinformationofyourcomputer,dothefollowing:
•OntheMicrosoftWindows7operationsystem,clickStart,right-clickComputer,andselectProperties toviewtheinformation.
•OntheMicrosoftWindows8orWindows8.1operatingsystem,gotothedesktopandmoveyourpointer tothetop-rightorbottom-rightcornerofthescreentodisplaythecharms.ThenclickSettingsPC infotoviewtheinformation.
.Then,selectMainSystemSummarytoviewtheinformation.
®
Windows
®
7operationsystem,clickStart,right-clickComputer,andselectProperties
Memory
Yourcomputersupportsuptotwodoubledatarate3smalloutlinedualinlinememorymodules(DDR3 SODIMMs).
Internaldrives
•ExternalOpticaldrive:DVD-ROMorDVD-R(optional)
•Hybriddrive(optional)
•SerialAdvancedT echnologyAttachment(SATA)harddiskdrive
•Solid-statedrive(optional)
Videosubsystem
•IntegratedgraphicsforaVideoGraphicsArray(VGA)connectorandaDisplayPort®connector
Audiosubsystem
•Integratedhigh-definition(HD)audio
•Microphoneconnectorandheadsetconnector(alsoknownasaudiojack)onthefrontpanel
•Internalspeaker
Connectivity
©CopyrightLenovo2013,2014
1
•100/1000MbpsintegratedEthernetcontroller
•Wi-Ficardmodule(optional)
•Wi-FiwithBluetoothmodule(optional)
Systemmanagementfeatures
•Abilitytostorepower-onself-test(POST)hardwaretestresults
•DesktopManagementInterface(DMI) DesktopManagementInterfaceprovidesacommonpathforuserstoaccessinformationaboutall
aspectsofacomputer,includingprocessortype,installationdate,attachedprintersandotherperipherals, powersources,andmaintenancehistory.
•ErPLPScompliancemode Theenergy-relatedproductsdirective(ErP)lowestpowerstate(LPS)compliancemodereducesthe
consumptionofelectricitywhenyourcomputerisinsleeporoffmode.Formoreinformation,see “EnablingErPLPScompliancemode”onpage96.
•Intel
®
StandardManageability
IntelStandardManageabilityishardwareandfirmwaretechnologythatbuildscertainfunctionality intocomputersinordertomakethemeasierandlessexpensiveforbusinessestomonitor,maintain, update,upgrade,andrepair.
•PrebootExecutionEnvironment(PXE) ThePrebootExecutionEnvironmentisanenvironmenttostartcomputersusinganetworkinterface
independentofdatastoragedevices(suchastheharddiskdrive)orinstalledoperatingsystems.
•IntelligentCoolingEngine(ICE) TheIntelligentCoolingEngineisasystemthermalmanagementsolutionthatenablesyourcomputer
torunwithbetterthermalandacousticperformance.TheICEfunctionalsomonitorsthethermal performanceofyourcomputertoidentifythermalproblems.Formoreinformation,see“ICEperformance mode”onpage97
and“ICEthermalalert”onpage98.
•SystemManagement(SM)BasicInput/OutputSystem(BIOS)andSMsoftware TheSMBIOSspecificationdefinesdatastructuresandaccessmethodsinaBIOSthatallowsauseror
applicationtostoreandretrieveinformationspecificaboutthecomputerinquestion.
•WakeonLAN WakeonLANisanEthernetcomputernetworkingstandardthatallowsacomputertobeturnedon
orwokenupbyanetworkmessage.Themessageisusuallysentbyaprogramrunningonanother computeronthesamelocalareanetwork.
•WindowsManagementInstrumentation(WMI) WindowsManagementInstrumentationisasetofextensionstotheWindowsDriverModel.Itprovidesan
operatingsysteminterfacethroughwhichinstrumentedcomponentsprovideinformationandnotification.
2ThinkCentreM73UserGuide
Input/Output(I/O)features
•OneDisplayPortconnector
•OneEthernetconnector
•Oneoptionalconnector(forinstallingaserialconnectororaUSB2.0connector)
•OneVGAmonitorconnector
•ThreeUniversalSerialBus(USB)2.0connectors(ontherearpanel)
•TwoUSB3.0connectors(onthefrontpanel)
•Twoaudioconnectorsonthefrontpanel(microphoneconnectorandheadsetconnector)
Formoreinformation,see“Locatingconnectors,controls,andindicatorsonthefrontofyourcomputer”on page8
and“Locatingconnectorsontherearofyourcomputer”onpage10.
Expansion
•Oneexternalopticaldrivebox(optional,supportinganopticaldriveorasecondaryharddiskdrive)
•Oneharddiskdrivebay
•OneminiPCIExpresscardslot
Powersupply
Yourcomputercomeswitha65-wattacpoweradapter.
Securityfeatures
•Abilitytoenableordisableadevice
•AbilitytoenableanddisableUSBconnectorsindividually
•ComputraceAgentsoftwareembeddedinfirmware
•Coverpresenceswitch(alsocalledintrusionswitch)
•Keyboardwithfingerprintreader(shippedwithsomemodels)
•Power-onpassword(POP),administratorpassword,andharddiskdrivepasswordtodeterunauthorized useofyourcomputer
•Startupsequencecontrol
•Startupwithoutkeyboardormouse
•SupportforaKensington-stylecablelock
Formoreinformation,seeChapter4“Security”onpage31
.
Preinstalledsoftwareprograms
Yourcomputerispreinstalledwithsoftwareprogramstohelpyouworkmoreeasilyandsecurely.Formore information,see“Lenovoprograms”onpage4.
Preinstalledoperatingsystem
Yourcomputerispreinstalledwithoneofthefollowingoperatingsystems:
•MicrosoftWindows7operatingsystem
•MicrosoftWindows8operatingsystem
•MicrosoftWindows8.1operatingsystem
Chapter1.Productoverview3
Operatingsystem(s),certifiedortestedforcompatibility
•Linux
®
1
Specifications
Thissectionliststhephysicalspecificationsforyourcomputer.
Dimensions
Width:179mm(7.05inches) Height:34.5mm(1.36inches) Depth:182mm(7.17inches)
Weight
Maximumconfigurationasshipped:4.86kg(10.71lb)(withpackage) Maximumconfigurationasshipped:4.14kg(9.13lb)(withoutpackage)
Environment
•Airtemperature:
Operating:10°Cto35°C(50°Fto95°F) Storageinoriginalshippingpackage:-40°Cto60°C(-40°Fto140°F) Storagewithoutpackage:-10°Cto60°C(14°Fto140°F)
•Humidity:
Operating:20%to80%(non-condensing) Storage:20%to90%(non-condensing)
•Altitude:
Operating:-15.2to3048m(-50to10000ft) Storage:-15.2to10668m(-50to35000ft)
Electricalinput
Theacpoweradapterinputvoltage:100to240Vac Inputfrequency:50/60Hz
(variesbymodeltype)

Lenovoprograms

YourcomputercomeswithLenovoprogramstohelpyouworkmoreeasilyandsecurely.Dependingon theWindowsoperatingsystempreinstalled,theprogramsmightvary.

AccessingLenovoprogramsontheWindows7operatingsystem

YoucanaccessLenovoprogramsontheWindows7operatingsystemthroughWindowsSearchorfrom ControlPanel.TheiconnamedisplayedinthesearchresultorControlPanelmightbedifferentfromthe programname.YoucanfindtheprogrambyitsprogramnameoriconnameasshownintheLenovo programsavailableontheWindows7operatingsystemtable.
1.Theoperatingsystem(s)listedherearebeingcertifiedortestedforcompatibilityatthetimethispublicationgoesto press.AdditionaloperatingsystemsmightbeidentifiedbyLenovoascompatiblewithyourcomputerfollowingthe publicationofthismanual.Thislistissubjecttochange.Todetermineifanoperatingsystemhasbeencertifiedor testedforcompatibility,checktheWebsiteoftheoperatingsystemvendor.
4ThinkCentreM73UserGuide
Note:Ifyoudonotfindtheprogramyouneed,opentheLenovoThinkVantage
®
Toolsprogramtofindthe
dimmediconfortheprogram.Thendouble-clicktheicontoinstalltheprogram.
ToaccessLenovoprogramsthroughWindowsSearch,dothefollowing:
1.ClicktheStartbuttonandthentypetheprogramnameortheiconnameintothesearchbox.
2.Locatetheprogrambytheprogramnameortheiconnameandthenclicktheprogramtolaunchit.
ToaccessLenovoprogramsfromControlPanel,dothefollowing:
Note:SomeLenovoprogramsmightnotbedisplayedinControlPanel.Tofindtheseprograms,use
WindowsSearch.
1.ClickStartControlPanel.ChangetheviewofControlPanelfromCategorytoLargeiconsorSmall
icons.
2.Locatetheprogrambytheiconnameandthenclicktheprogramtolaunchit.
ThefollowingtableliststheprogramsavailableontheWindows7operatingsystem.
Note:Dependingonyourcomputermodel,someoftheLenovoprogramsmightnotbeavailable.
Table1.LenovoprogramsavailableontheWindows7operatingsystem
ProgramnameIconname
CommunicationsUtilityLenovo-WebConferencing
FingerprintManagerProor ThinkVantageFingerprintSoftware
LenovoBluetoothLockLenovoBluetoothLock
LenovoReachLenovoReach
LenovoSHAREitLenovoSHAREit
LenovoSolutionCenterLenovo-SystemHealthandDiagnostics
LenovoThinkVantageToolsLenovoThinkvantageTools
PasswordManagerLenovo-PasswordVault
PCCloudManagerPCCloudManager
PowerManager
RecoveryMedia
RescueandRecovery
SystemUpdate
ViewManagementUtilityLenovo-ViewManagementUtility
®
Lenovo-FingerprintManagerProorLenovo-FingerprintReader
Lenovo-PowerControls
Lenovo-FactoryRecoveryDisksorCreateRecoveryMedia
Lenovo-EnhancedBackupandRestore
Lenovo-UpdateandDrivers

AccessingLenovoprogramsontheWindows8orWindows8.1operating system

IfyourcomputerispreinstalledwiththeWindows8orWindows8.1operatingsystem,youcanaccess Lenovoprogramsbydoingoneofthefollowing:
•OntheWindows8operatingsystem,presstheWindowskeytogototheStartscreen.ClickaLenovo programtolaunchit.Ifyoucannotfindtheprogramyouneed,movethepointertothebottom-rightcorner ofthescreentodisplaythecharms.ThenclicktheSearchcharmtosearchforthedesiredprogram.
Chapter1.Productoverview5
•OntheWindows8.1operatingsystem,presstheWindowskeytogototheStartscreen.Clicka Lenovoprogramtolaunchit.Ifyoucannotfindtheprogramyouneed,clickthearrowiconinthe
bottom-leftcornerofthescreentogototheAppsscreen.Findthedesiredprogramintheappslistor searchforitinthesearchboxinthetop-rightcornerofthescreen.
Dependingonyourcomputermodel,yourcomputersupportssomeofthefollowingLenovoprograms:
•FingerprintManagerProorThinkVantageFingerprintSoftware
•LenovoBluetoothLock(Windows8.1only)
•LenovoCompanion
•LenovoReach
•LenovoSettings
•LenovoSHAREit
•LenovoSolutionCenter
•LenovoSupport
•LenovoT ools
•PasswordManager
•PowerManager
•PCCloudManager(Windows8.1only)
•SystemUpdate

AnintroductiontoLenovoprograms

ThistopicprovidesabriefintroductiontosomeLenovoprograms.
Note:Dependingonyourcomputermodel,someoftheprogramsmightnotbeavailable.
CommunicationsUtility(Windows7) TheCommunicationsUtilityprogramprovidesacentrallocationforintegratedcameraandmicrophone
settings.ItcontrolsadvancedsettingsfortheintegratedmicrophoneandcameratooptimizeWeb conferencingandVoiceoverIP(VOIP)experience.
FingerprintManagerProorThinkVantageFingerprintSoftware(Windows7,Windows8,and
Windows8.1)
Theintegratedfingerprintreaderprovidedonsomekeyboardsenablesyoutoenrollyourfingerprint andassociateitwithyourpower-onpassword,harddiskpassword,andWindowspassword.Asa result,fingerprintauthenticationcanreplacepasswordsandenablesimpleandsecureuseraccess.A fingerprintreaderkeyboardisavailablewithselectcomputersorcanbepurchasedforcomputersthat supportthisoption.
LenovoBluetoothLock(Windows7andWindows8.1) TheLenovoBluetoothLockprogramenablesyoutouseaBluetoothdevice(suchasyoursmartphone)as
aproximity-basedunitforlockingorunlockingyourcomputerautomatically.Bydetectingthedistance betweenyourcomputerandthepredefinedBluetoothdevicethatyouarecarrying,theLenovoBluetooth Lockprogramautomaticallylocksyourcomputerwhenyouwalkawayandunlocksyourcomputerwhen youcomeback.Thisisasimplewaytoprotectyourcomputeragainstunauthorizedaccessincase thatyouforgettolockyourcomputer.
LenovoCompanion(Windows8andWindows8.1) ThroughtheLenovoCompanionprogram,youcangettheinformationabouttheaccessoriesforyour
computer,viewblogsandarticlesaboutyourcomputer,andcheckforotherrecommendedprograms.
6ThinkCentreM73UserGuide
LenovoReach(Windows7,Windows8,andWindows8.1) UsetheLenovoReachprogramtoenhanceyourcloudexperience.LenovoReachkeepsyouconnected
atalltimesandenablesyoutoaccessallyourfavoriteitemsfrompersonalcomputers,smartphones,or tablets.WithLenovoReach,youcanaddyourfavoriteWebservicestoyourclouddesktop;staylogged intoWebsiteswiththecloudpasswordmanager;andaccess,edit,andshareyourfilesfromanywhere.
LenovoSettings(Window8andWindows8.1) UsetheLenovoSettingsprogramtoenhanceyourcomputingexperience.Youcanturnyourcomputer
intoaportablehotspot,configurecameraandaudiosettings,optimizeyourpowerplansettings,and createandmanagemultiplenetworkprofiles.
LenovoSHAREit(Windows7,Windows8,andWindows8.1) TheLenovoSHAREitprogramprovidesaquickandeasywaytosharefilesandfoldersamongcomputers,
smartphones,tablets,orsmartTVswiththeAndroidortheWindowsoperatingsysteminstalled.SHAREit usesanytypeofnetworkorevennonetworkatalltosharefilesandfolders.
LenovoSolutionCenter(Windows7,Windows8,andWindows8.1) TheLenovoSolutionCenterprogramenablesyoutotroubleshootandresolvecomputerproblems.It
combinesdiagnostictests,systeminformationcollection,securitystatus,andsupportinformation,along withhintsandtipsformaximumsystemperformance.
LenovoSupport(Windows8andWindows8.1) TheLenovoSupportprogramenablesyoutoregisteryourcomputerwithLenovo,checkthecomputer
healthconditionandbatterystatus,downloadandviewusermanualsforyourcomputer,getthewarranty informationofyourcomputer,andexplorehelpandsupportinformation.
LenovoThinkVantageT ools(Windows7) TheLenovoThinkVantageT oolsprogramguidesyoutoahostofinformationsourcesandprovideseasy
accesstovarioustoolstohelpyouworkmoreeasilyandsecurely.
LenovoTools(Windows8andWindows8.1) TheLenovoToolsprogramguidesyoutoahostofinformationsourcesandprovideseasyaccessto
varioustoolstohelpyouworkmoreeasilyandsecurely.
PasswordManager(Windows7,Windows8,andWindows8.1) ThePasswordManagerprogramautomaticallycapturesandfillsinauthenticationinformationfor
WindowsprogramsandWebsites.
PCCloudManager(Windows7andWindows8.1) ThePCCloudManager(PCM)programisabrowser-basedsolutionforclient-computermanagement.
ThePCMprogramhastwocomponents:PCMServerandPCMClient.PCMServerisinstalledonthe computer,wheretheadministratorperformsmanagementwork,suchaspowermanagementandsecurity management.PCMClientisinstalledontheclientcomputerstobemanaged.Theadministratorcanlog intoPCMServertomanagecomputerswithPCMClientinstalled,throughtheInternetWebbrowser.
PowerManager(Windows7,Windows8,andWindows8.1) ThePowerManagerprogramprovidesconvenient,flexible,andcompletepowermanagementforyour
computer.Itenablesyoutoadjustyourcomputerpowersettingstoachievethebestbalancebetween performanceandpowersaving.
RecoveryMedia(Windows7) TheRecoveryMediaprogramenablesyoutorestorethecontentsoftheharddiskdrivetothefactory
defaultsettings.
RescueandRecovery(Windows7) TheRescueandRecoveryprogramisaone-buttonrecoveryandrestoresolutionthatincludesasetof
self-recoverytoolstohelpyoudiagnosecomputerproblems,gethelp,andrecoverfromsystemcrashes, evenifyoucannotstarttheWindowsoperatingsystem.
Chapter1.Productoverview7
SystemUpdate(Windows7,Windows8,andWindows8.1) TheSystemUpdateprogramhelpsyoukeepthesoftwareonyourcomputerup-to-datebydownloading
andinstallingsoftwareupdatepackages(Lenovoprograms,devicedrivers,UEFIBIOSupdates,and otherthirdpartyprograms).
ViewManagementUtility(Windows7) TheViewManagementUtilityprogramenablesyoutoeasilyorganizeyouropenwindows.Itdividesyour
screenintomultiplepartsandthenresizesandpositionsopenwindowsintodifferentpartstomakethe bestuseofyourdesktop.Theprogramalsoisabletoworkacrossmultiplemonitorstoimproveyour productivity.

Locations

Thissectionprovidesinformationtohelpyoulocatetheconnectorsonthefrontandrearofyourcomputer, partsonthesystemboard,andcomponentsandinternaldrivesinyourcomputer.
Note:Thecomponentsinyourcomputermightlookslightlydifferentfromtheillustrations.

Locatingconnectors,controls,andindicatorsonthefrontofyour computer

Figure1“Frontconnector,control,andindicatorlocations”onpage9showsthelocationsoftheconnectors, controls,andindicatorsonthefrontofyourcomputer.
8ThinkCentreM73UserGuide
Figure1.Frontconnector,control,andindicatorlocations
1Powerbutton2Bluetoothactivityindicator
3Wirelessactivityindicator4Harddiskdriveactivityindicator
5Powerindicator
7Microphoneconnector8Headsetconnector
9AlwaysOnUSB3.0connector
6USB3.0connector
Notes:
•Indicators2,3,4,and5arevisibleonlywhentheyarelit.
•Theheadsetconnector
8supportsamicrophone-integratedheadsetanddoesnotsupporta
conventionalmicrophone.
•Bydefault,theAlwaysOnUSB3.0connector9enablesyoutochargesomemobiledigitaldevicesand smartphoneswhenyourcomputerisinsleeporhibernationmodeorispoweredoff.
Chapter1.Productoverview9

Locatingconnectorsontherearofyourcomputer

Figure2“Rearconnectorlocations”onpage10showsthelocationsoftheconnectorsontherearofyour computer.Someconnectorsontherearofyourcomputerarecolor-codedtohelpyoudeterminewhereto connectthecablesonyourcomputer.
Figure2.Rearconnectorlocations
1USB2.0connector
3VGAmonitorconnector4USB2.0connector
5USB2.0connector
7acpoweradapterconnector
9Optionalconnector
11Wi-Fiantennaslot
2Ethernetconnector
6DisplayPortconnector
8Security-lockslot
10acpoweradaptercableloop
Notes:
•TheUSB2.0connector
4supportsthesmartpoweronfeaturethatenablesyoutoturnonthecomputer
orwakeitupfromS4hibernationmodebypressingAlt+Ponthekeyboard.Youcanenableordisable thesmartpoweronfeaturefromtheSetupUtilityprogram.Fordetailedinformation,see“Enablingor disablingadevice”onpage95
.
•Ifyourcomputerisinstalledwithagraphicscard,ensurethatyouusethemonitorconnectorsonthe graphicscard.
10ThinkCentreM73UserGuide
ConnectorDescription
DisplayPortconnector
Usedtoattachahigh-performancemonitor,adirect-drivemonitor,orotherdevices thatuseaDisplayPortconnector. Note:TheDisplayPortconnectorisnotapplicableonsomemodels.Ifyour computerhasagraphicscardinstalled,besuretouseamonitorconnectoron thegraphicscard.
Ethernetconnector
UsedtoattachanEthernetcableforalocalareanetwork(LAN). Note:TooperatethecomputerwithinFCCClassBlimits,useaCategory5Ethernet cable.
OptionalconnectorUsedtoinstallaserialconnectororaUSB2.0connector.
Note:Ifyouusetheoptionalconnectorforinstallingaserialconnector,theserial connectorandtheadjacentVGAmonitorconnectormightinterferewitheachother whenconnectingcables.Toavoidtheinterference,ensurethatyouusetheserial connectorconvertcablethatcomeswiththecomputerwhenyouconnectadevice totheserialconnector.
USB2.0connectorUsedtoattachadevicethatrequiresaUSB2.0connection,suchasakeyboard,a
mouse,ascanner,aprinter,orapersonaldigitalassistant(PDA).
USB3.0connectorUsedtoattachadevicethatrequiresaUSB2.0or3.0connection,suchasa
keyboard,amouse,ascanner,aprinter,orapersonaldigitalassistant(PDA).A USB3.0connectorprovideshightransmissionspeedstoreducethetimethatis requiredfordatatransmission.
VGAmonitorconnectorUsedtoattachaVGAmonitororotherdevicesthatuseaVGAmonitorconnector.
Note:TheVGAconnectorisnotapplicableonsomemodels.Ifyourcomputerhas agraphicscardinstalled,besuretouseamonitorconnectoronthegraphicscard.
Chapter1.Productoverview11

Locatingcomponents

Figure3“Componentlocations”onpage12showsthelocationsofthevariouscomponentsinyour computer.Toremovethecomputercover,see“Removingthecomputercover”onpage57.
Figure3.Componentlocations
12ThinkCentreM73UserGuide
1Computercover2Systemfan
3Thermalmodule
5Internalspeaker6Microprocessor
7FrontWi-Fiantenna8Powerbuttonboard
9Powercord10acpoweradapter
11Memorymodules12Battery
13Wi-Ficardmodule14RearWi-Fiantennacable
15RearWi-Fiantenna
4Coverpresenceswitch(intrusionswitch)
16Harddiskdriveassembly(withaharddiskdriveorsolid-state
driveinstalled)

Locatingpartsonthesystemboard

Figure4“Systemboardpartlocations”onpage13showsthelocationsofthepartsonthesystemboard.
Figure4.Systemboardpartlocations
1Serial(COM1)connector2Systemfanconnector
3Microprocessor
4Coverpresenceswitchconnector(intrusionswitch
connector)
5ClearCMOS(ComplementaryMetalOxide
6Internalspeakerconnector
Semiconductor)/Recoveryjumper
7Powerbuttonboardcableconnector
9Battery
8Memoryslots(2)
10MiniPCIExpresscardslot
Chapter1.Productoverview13
11SATA3.0connector
13OptionalUSB2.0connector
12Harddiskdrivepowerconnector

Machinetypeandmodellabel

Themachinetypeandmodellabelidentifiesyourcomputer.WhenyoucontactLenovoforhelp,themachine typeandmodelinformationhelpssupporttechnicianstoidentifyyourcomputerandprovidefasterservice.
Thefollowingisasampleofthemachinetypeandmodellabel.
Figure5.Machinetypeandmodellabel
14ThinkCentreM73UserGuide

Chapter2.Usingyourcomputer

Thischapterprovidesinformationonusingsomeofthecomputercomponents.

Frequentlyaskedquestions

Thefollowingareafewtipsthatwillhelpyouoptimizetheuseofyourcomputer.
CanIgetmyuserguideinanotherlanguage?
TheuserguideisavailableinvariouslanguagesontheLenovoSupportWebsiteat: http://www.lenovo.com/UserManuals
Wherearemyrecoverydiscs?
Lenovoprovidesaprogramthatenablesyoutocreaterecoverydiscs.Fordetailsaboutcreatingrecovery discs,see“Creatingrecoverymedia”onpage86
Additionally,incaseofaharddiskfailure,youcanorderProductRecoverydiscsfromtheLenovoCustomer SupportCenter.ForinformationaboutcontactingtheCustomerSupportCenter,seeChapter11“Getting information,help,andservice”onpage125.BeforeusingtheProductRecoverydiscs,refertothe documentationthatcomeswiththediscs.
Attention:AProductRecoverydiscpackagemightcontainmultiplediscs.Makesureyouhaveallofthe discsreadybeforestartingtherecoveryprocess.Duringtherecoveryprocess,youmightbeprompted tochangediscs.
.
WherecanIfindhelpabouttheWindowsoperatingsystem?
TheWindowsHelpandSupportinformationsystemprovidesyouwithdetailedinformationaboutusingthe Windowsoperatingsystemtohelpyougetthemostofyourcomputer.ToaccesstheWindowsHelpand Supportinformationsystem,dooneofthefollowing:
•OntheWindows7operatingsystem,clickStartHelpandSupport.
•OntheWindows8orWindows8.1operatingsystem,moveyourpointertothetop-rightorbottom-right cornerofthescreentodisplaythecharms.ThenclickSettingsHelp.Additionally,theWindows8.1 operatingsystemprovidesaHelp+TipsapplicationthatyoucanopenfromtheStartscreenorApps screen.
CanIchangetheWindows8.1startupbehaviortoopeneitherthedesktoportheStartscreen?
OntheWindows8.1operatingsystem,youcansetthecomputertoopeneitherthedesktoportheStart screenbydefault.T osetthedefaultstartupscreen,dothefollowing:
1.Onthedesktop,moveyourpointertothetaskbaratthebottomofthescreenandright-clickonthe taskbar.
2.ClickProperties.TheTaskbarandNavigationpropertieswindowisdisplayed.
3.OntheNavigationtab,locatetheStartscreensection,andthendooneofthefollowing:
•Tosetthedesktopasyourdefaultstartupscreen,selectWhenIsigninorcloseallappsona
screen,gotothedesktopinsteadofStartsoacheckisvisible.
•TosettheStartscreenasyourdefaultstartupscreen,removethecheckfromtheWhenIsigninor
closeallappsonthescreen,gotodesktopinsteadofStartcheckbox.
4.ClickOKtosavethenewsetting.
ThisfeatureisnotavailableontheWindows8operatingsystem.
©CopyrightLenovo2013,2014
15

NavigatingamongscreensontheWindows8andWindows8.1operating systems

Thissectionprovidesinstructionsonhowtonavigateamongthedesktop,theStartscreen,andapplications thatwereopenedfromtheStartscreenontheWindows8andWindows8.1operatingsystems.Fordetailed instructions,see“NavigatingonWindows8”onpage16
or“NavigatingonWindows8.1”onpage17.

NavigatingonWindows8

Tonavigateamongthedesktop,theStartscreen,andapplicationsthatwereopenedfromtheStartscreen ontheWindows8operatingsystem,dooneofthefollowing:
•FromtheStartscreen,dooneofthefollowingtonavigatetothemostrecentlyaccessedworkspace (application,PCsettings,ordesktop):
–Usingapointingdevice:Movethepointertotheextremebottom-leftcornerofthescreenuntilasmall
representationoftheworkspaceisdisplayed;thenclicktherepresentation.
–Usingatouchscreen:Swipeinandoutontheleftedgeofthescreen.Representationsofallavailable
workspacesaredisplayedalongtheleftedgeofthescreen.Taptherepresentationoftheworkspaceat thebottom.
Note:Therepresentationofaworkspaceisdisplayedonlyifyouhaveatleastoneactiveworkspacein thebackgroundofthesystem.
•FromthedesktoporanyotherworkspacethatisopenedfromtheStartscreen,dooneofthefollowingto navigatetotheStartscreen:
–Usingapointingdevice:Movethepointertotheextremebottom-leftcornerofthescreenuntilasmall
representationoftheStartscreenisdisplayed;thenclicktherepresentation.
–Usingatouchscreen:Dooneofthefollowing:
–Swipeinandoutontheleftedgeofthescreen.Representationsofallavailableworkspacesare
displayedalongtheleftedgeofthescreen.TaptherepresentationoftheStartscreenatthebottom.
–Swipeinfromtherightedgeofthescreentodisplaythecharms;thentapStart.
•Fromanyworkspace(Startscreen,desktop,PCsettings,orapplicationopenedfromtheStartscreen), useanyofthefollowingprocedurestogotoanotherworkspacethatyouhavepreviouslyopened:
–Tonavigatetoapreviouslyaccessedworkspace(application,PCsettings,ordesktop),dooneofthe
following:
–Usingapointingdevice:
1.Dooneofthefollowing:
•Movethepointertotheextremetop-leftcornerofthescreenandthenmovethepointer downwardalongtheleftedgeofthescreen.
•Movethepointertotheextremebottom-leftcornerofthescreenandthenmovethepointer upwardalongtheleftedgeofthescreen.
Representationsofallavailableworkspacesaredisplayedalongtheleftedgeofthescreen.
Note:OnlyactiveworkspacesthatyouhaveaccessedduringthecurrentWindowssession aredisplayedalongtheleftedge.Ifyoucloseanactiveworkspace,itsrepresentationdoes notdisplayalongtheleftedgeofthescreen.
2.Clicktherepresentation.
–Usingatouchscreen:
•Method1
16ThinkCentreM73UserGuide
1.Swipeinandoutontheleftedgeofthescreen.Representationsofallavailableworkspaces aredisplayedalongtheleftedgeofthescreen.
2.T apthedesiredworkspace.
•Method2
1.Swipeinfromtheleftedgeofthescreentonavigatetothenextavailableworkspace.
2.Repeatstep1untilyounavigatetothedesiredworkspace.
–Tonavigatetothemostrecentlyaccessedworkspace(application,PCsettings,ordesktop),doone
ofthefollowing:
–Usingapointingdevice:Movethepointertotheextremetop-leftcornerofthescreenuntilasmall
representationoftheworkspaceisdisplayed;thenclicktherepresentation.
–Usingatouchscreen:Swipeinfromtheleftedgeofthescreen.
ForinformationaboutusingotherfeaturesoftheWindows8operatingsystem,refertotheWindowsHelp andSupportinformationsystem.Formoreinformation,see“HelpandSupport”onpage125
.

NavigatingonWindows8.1

Tonavigateamongthedesktop,theStartscreen,andapplicationsthatwereopenedfromtheStartscreen ontheWindows8.1operatingsystem,dooneofthefollowing:
•FromtheStartscreen,dooneofthefollowingtonavigatetothemostrecentlyaccessedworkspace (application,setting,ordesktop):
–Usingapointingdevice:Movethepointertotheextremebottom-leftcornerofthescreenuntilthe
Windowsscreen-controlicon
–Usingatouchscreen:Swipeinandoutontheleftedgeofthescreen.Representationsofallavailable
workspacesaredisplayedalongtheleftedgeofthescreen.TaptheWindowsscreen-controlicon
atthebottom.
Note:TheWindowsscreen-controlicon inthebackgroundofthesystem.
•FromthedesktoporanyotherworkspacethatisopenedfromtheStartscreen,dooneofthefollowingto navigatetotheStartscreen:
–Usingapointingdevice:
–Fromthedesktop,clicktheWindowsscreen-controliconinthebottom-leftcornerofthescreen. –Fromanyotherworkspace,movethepointertotheextremebottom-leftcornerofthescreenuntil
theWindowsscreen-controliconisdisplayed;thenclicktheicon.
–Usingatouchscreen:Dooneofthefollowing:
–Fromthedesktop,taptheWindowsscreen-controliconinthebottom-leftcornerofthescreen. –Fromanyotherworkspace,dooneofthefollowing:
•Swipeinandoutontheleftedgeofthescreen.Representationsofallavailableworkspaces aredisplayedalongtheleftedgeofthescreen.TaptheWindowsscreen-controliconat
thebottom.
•Swipeinfromtherightedgeofthescreentodisplaythecharms;thentapStart.
•Fromanyworkspace(Startscreen,desktop,PCsettings,orapplicationopenedfromtheStartscreen), useanyofthefollowingprocedurestogotoanotherworkspacethatyouhavepreviouslyopened:
isdisplayed;thenclicktheicon.
isdisplayedonlyifyouhaveatleastoneactiveworkspace
–Tonavigatetoapreviouslyaccessedworkspace(application,setting,ordesktop),dooneofthe
following:
Chapter2.Usingyourcomputer17
–Usingapointingdevice:
1.Dooneofthefollowing:
•Movethepointertotheextremetop-leftcornerofthescreenandthenmovethepointer downwardalongtheleftedgeofthescreen.
•Movethepointertotheextremebottom-leftcornerofthescreenandthenmovethepointer upwardalongtheleftedgeofthescreen.
Representationsofallavailableworkspacesaredisplayedalongtheleftedgeofthescreen.
Note:OnlyactiveworkspacesthatyouhaveaccessedduringthecurrentWindowssession aredisplayedalongtheleftedge.Ifyoucloseanactiveworkspace,itsrepresentationdoes notdisplayalongtheleftedgeofthescreen.
2.Clicktherepresentation.
–Usingatouchscreen:
•Method1
1.Swipeinandoutontheleftedgeofthescreen.Representationsofallavailableworkspaces aredisplayedalongtheleftedgeofthescreen.
2.T apthedesiredworkspace.
•Method2
1.Swipeinfromtheleftedgeofthescreentonavigatetothenextavailableworkspace.
2.Repeatstep1untilyounavigatetothedesiredworkspace.
–Tonavigatetothemostrecentlyaccessedworkspace(application,PCsettings,ordesktop),doone
ofthefollowing:
–Usingapointingdevice:Movethepointertotheextremetop-leftcornerofthescreenuntilthe
Windowsscreen-controliconisdisplayed;thenclicktheicon.
–Usingatouchscreen:Swipeinfromtheleftedgeofthescreen.
ForinformationaboutusingotherfeaturesoftheWindows8.1operatingsystem,opentheHelp+Tips applicationfromtheStartscreenorAppsscreen,orrefertotheWindowsHelpandSupportinformation system.Formoreinformation,see“HelpandSupport”onpage125.

AccessingControlPanelontheWindows8orWindows8.1operating system

OntheWindowsoperatingsystem,youcanviewandchangecomputersettingsthroughControlPanel.To accessControlPanelontheWindows8orWindows8.1operatingsystem,dooneofthefollowing:
•Fromthedesktop
1.Movethepointertothetop-rightorbottom-rightcornerofthescreentodisplaythecharms.
2.ClickSettings.
3.ClickControlPanel.
•FromtheStartscreen
–ForWindows8:
1.Movethepointertothetop-rightorbottom-rightcornerofthescreentodisplaythecharms.
2.ClickSearch.
3.OntheAppsscreen,scrolltotherightside,andclickControlPanelintheWindowsSystem section.
18ThinkCentreM73UserGuide
–ForWindows8.1:
1.Clickthearrowiconinthebottom-leftcornerofthescreentogototheAppsscreen.
2.Scrolltotherightside,andclickControlPanelintheWindowsSystemsection.

Usingthekeyboard

Dependingonyourmodel,yourcomputercomeswitheitherastandardkeyboardorafingerprintreader keyboard.TheMicrosoftWindowsshortcutkeysareprovidedonbothkeyboardtypes.
Thissectionprovidesinformationaboutthefollowingtopics:
•“UsingWindowsshortcutkeys”onpage19
•“Usingafingerprintreader”onpage19

UsingWindowsshortcutkeys

Boththestandardkeyboardandthefingerprintreaderkeyboardprovidethreekeysyoucanusewithyour MicrosoftWindowsoperatingsystem.
•ThetwoWindowslogokeysarelocatedbesidetheAltkeyoneithersideofthespacebar.Theyfeature theWindowslogo.OntheWindows7operatingsystem,presstheWindowskeytoopentheStart menu.OntheWindows8orWindows8.1operatingsystem,presstheWindowskey
betweenthecurrentworkspaceandtheStartscreen.ThestyleoftheWindowslogovariesdepending onthekeyboardtype.
•Thecontext-menukeyislocatednexttotheCtrlkeyontherightsideoftheSpacebar.Pressingthe context-menukeyopensthecontextmenufortheactiveprogram,icon,orobject.
toswitch
Note:YoucanusethemouseortheUpandDownarrowkeystohighlightmenuselections.OntheWindows 7operatingsystem,youcanclosetheStartmenuorthecontextmenubyclickingthemouseorpressingEsc.
Usingafingerprintreader
Theintegratedfingerprintreaderprovidedonsomekeyboardsenablesyoutoenrollyourfingerprintand associateitwithyourpower-onpassword,harddiskpassword,andWindowspassword.Asaresult, fingerprintauthenticationcanreplacepasswordsandenablesimpleandsecureuseraccess.Afingerprint readerkeyboardisavailablewithselectcomputersorcanbepurchasedforcomputersthatsupportthis option.
ToopenFingerprintManagerProorThinkVantageFingerprintSoftwareandusethefingerprintreader, dothefollowing:
•OntheWindows7operatingsystem,see“AccessingLenovoprogramsontheWindows7operating system”onpage4
•OntheWindows8.1operatingsystem,see“AccessingLenovoprogramsontheWindows8orWindows
8.1operatingsystem”onpage5
Followtheon-screeninstruction.Formoreinformationaboutusingthefingerprintreader,refertothehelp systemofFingerprintManagerProorThinkVantageFingerprintSoftware.
.
.
Chapter2.Usingyourcomputer19

Usingthewheelmouse

Thewheelmousehasthefollowingcontrols:
1PrimarymousebuttonUsethisbuttontoselectorstartaprogramormenuitem.
2Wheel
3Secondarymousebutton
Youcanswitchthefunctionoftheprimaryandsecondarymousebuttonsandchangeotherdefaultbehavior throughthemousepropertiesfunctionintheWindowsControlPanel.
Usethewheeltocontrolthescrollingactionofthemouse.Thedirectioninwhichyou rotatethewheelcontrolsthedirectionofthescrollingaction.
Usethisbuttontodisplayamenufortheactiveprogram,icon,orobject.

Adjustingaudio

Soundisanimportantpartofthecomputerexperience.Yourcomputerhasadigitalaudiocontrollerbuilt intothesystemboard.Somemodelsalsohaveahigh-performanceaudioadapterinstalledinoneofthePCI cardslots.

Aboutyourcomputeraudio

Ifafactory-installed,high-performanceaudioadapterisinstalledinyourcomputer,thesystem-board audioconnectorsontherearofthecomputeraretypicallydisabled;usetheconnectorsprovidedonthe audioadapter.
Eachaudiosolutionprovidesatleastthreeaudioconnectors:audioline-inconnector,audioline-out connector,andMicrophoneconnector.Onsomemodels,afourthconnectorisprovidedfortheattachment ofunpoweredstereospeakers(speakersthatdonotrequireanacpowersource).Theaudioadapter providesyouwiththeabilitytorecordandplaybacksoundandmusic,aswellastoenjoysoundwith multimediaapplicationsandworkwithspeech-recognitionsoftware.
Optionally,youcanconnectasetofpoweredstereospeakerstotheaudioline-outconnectortoenjoy bettersoundwithmultimediaapplications.

Settingthevolumefromthedesktop

Thedesktopvolumecontrolisaccessiblethroughthevolumeiconinthetaskbar,whichislocatedatthe bottom-rightcorneroftheWindowsdesktop.Clickthevolumeiconandmovethesliderupordownto controlthevolume,orclicktheMuteicontoturntheaudiooff.Ifthevolumeiconisnotinthetaskbar,see “Addingthevolumeicontothetaskbar”onpage20.
Addingthevolumeicontothetaskbar
ToaddthevolumeicontothetaskbarontheWindows7operatingsystem,dothefollowing:
20ThinkCentreM73UserGuide
1.FromtheWindowsdesktop,clickStartControlPanelAppearanceandPersonalization.
2.IntheT askbarandStartMenusection,clickCustomizeiconsonthetaskbar.
3.ClickT urnsystemiconsonoroffandchangethevolumebehaviorsfromOfftoOn.
4.ClickOKtosavethenewsettings.
ToaddthevolumeicontothetaskbarontheWindows8orWindows8.1operatingsystem,dothefollowing:
1.OpenControlPanel,andclickAppearanceandPersonalization.
Note:FordetailedinformationonhowtoopenControlPanelonWindows8andWindows8.1,see “AccessingControlPanelontheWindows8orWindows8.1operatingsystem”onpage18.
2.Dooneofthefollowing:
•ForWindows8: IntheT askbarsection,clickCustomizeiconsonthetaskbar.
•ForWindows8.1: IntheT askbarandNavigationsection,clickCustomizeiconsonthetaskbar.
3.ClickT urnsystemiconsonoroffandchangethevolumebehaviorfromOfftoOn.
4.ClickOKtosavethenewsettings.

SettingthevolumefromControlPanel

YoucansetthecomputervolumefromControlPanel.T osetthecomputervolumefromControlPanel, dothefollowing:
1.OntheWindows7operatingsystem,clickStartControlPanelHardwareandSound.Onthe Windows8orWindows8.1operatingsystem,openControlPanel,andclickHardwareandSound.
Note:FordetailedinformationonhowtoopenControlPanelonWindows8andWindows8.1,see “AccessingControlPanelontheWindows8orWindows8.1operatingsystem”onpage18
2.IntheSoundsection,clickAdjustsystemvolume.
3.Movetheslidersupordowntoraiseorlowerthevolumeofyourcomputer.

UsingCDsandDVDs

YourcomputermighthaveaDVDROMdriveorrecordableDVDdriveinstalled.DVDdrivesuse industry-standard,12cm(4.75-inch)CDmediaorDVDmedia.IfyourcomputercomeswithaDVDdrive, thedrivecanreadDVD-ROMdiscs,DVD-Rdiscs,DVD-RAMdiscs,DVD-RWdiscs,andalltypesofCDs, suchasCD-ROMdiscs,CD-RWdiscs,CD-Rdiscs,andaudioCDs.IfyouhavearecordableDVDdrive, itcanalsorecordonDVD-Rdiscs,DVD-RWdiscs,typeIIDVD-RAMdiscs,CD-RWstandardandhigh speeddiscs,andCD-Rdiscs.
FollowtheseguidelineswhenusingtheDVDdrive:
•Donotplacethecomputerinalocationwherethedriveisexposedtothefollowing:
–Hightemperature –Highhumidity –Excessivedust –Excessivevibrationorsuddenshock –Aninclinedsurface –Directsunlight
.
Chapter2.Usingyourcomputer21
•DonotinsertanyobjectotherthanaCDorDVDintothedrive.
•Beforemovingthecomputer,removetheCDorDVDfromthedrive.

HandlingandstoringCDandDVDmedia

CDandDVDmediaaredurableandreliable,buttheydorequiresomecareandspecialhandling.When handlingandstoringaCDorDVD,followtheseguidelines:
•Holdthediscbyitsedges.Donottouchthesurfaceofthesidethatisnotlabeled.
•Toremovedustorfingerprints,wipethediscwithaclean,softclothfromthecentertotheoutside.Wiping thediscinacirculardirectionmightcauselossofdata.
•Donotwriteorstickpaperonthedisc.
•Donotscratchormarkthedisc.
•Donotplaceorstorethediscindirectsunlight.
•Donotusebenzene,thinners,orothercleanerstocleanthedisc.
•Donotdroporbendthedisc.
•Donotinsertdamageddiscsintothedrive.Warped,scratched,ordirtydiscscandamagethedrive.

PlayingaCDorDVD

IfyourcomputercomeswithaDVDdrive,youcanlistentoaudioCDsorwatchDVDmovies.Toplaya CDorDVD,dothefollowing:
1.PresstheEject/LoadbuttonontheDVDdrivetoopenthetray.
2.Withthetrayfullyextended,inserttheCDorDVDintothetray.SomeDVDdriveshaveasnaphubinthe centerofthetray.Ifyourdrivehasasnaphub,supportthetraywithonehandandthenpushonthe centeroftheCDorDVDuntilitsnapsintoplace.
3.PresstheEject/Loadbuttonagainorgentlypushthetrayforwardtoclosethetray.TheCDorDVD playerprogramstartsautomatically.Foradditionalinformation,refertotheCDorDVDplayerprogram helpsystem.
ToremoveaCDorDVDfromtheDVDdrive,dothefollowing:
1.Withthecomputeron,presstheEject/Loadbutton.Whenthetrayslidesoutautomatically,carefully removethedisc.
2.ClosethetraybypressingtheEject/Loadbuttonorbygentlypushingthetrayforward.
Note:IfthetraydoesnotslideoutofthedrivewhenyoupresstheEject/Loadbutton,insertastraightened paperclipintotheemergency-ejectholelocatedonthefrontoftheDVDdrive.Besurethedriveispowered offwhenusingtheemergencyeject.UsetheEject/Loadbuttoninsteadoftheemergencyejectexcept inanemergency.

RecordingaCDorDVD

IfyourcomputercomeswitharecordableDVDdrive,youcanusethedrivetorecordCDsorDVDs.
TorecordaCDorDVD,dooneofthefollowing:
•OntheWindows7operatingsystem,youhaveeithertheCorelDVDMovieFactoryLenovoEditionprogram orthePower2Goprograminstalledonyourcomputer.
–ToruntheCorelDVDMovieFactoryLenovoEditionprogram,clickStartAllProgramsCorel
DVDMovieFactoryLenovoEditionCorelDVDMovieFactoryLenovoEdition.Followthe instructionsonthescreen.
22ThinkCentreM73UserGuide
–TorunthePower2Goprogram,clickStartAllProgramsPowerDVDCreatePower2Go.
Followtheinstructionsonthescreen.
•OntheWindows8operatingsystem,runthePower2Goprogrambydoingthefollowing:
1.Movethepointertothetop-rightorbottom-rightcornerofthescreentodisplaythecharms.Then clickSearchandtypePower2Go.
2.ClickPower2Gointheleftpaneltoopentheprogram.
3.Followtheinstructionsonthescreen.
•OntheWindows8.1operatingsystem,runthePower2Goprogrambydoingthefollowing:
1.Onthestartscreen,clickthearrowiconinthebottom-leftcornertogototheAppsscreen.Then typePower2Gointhesearchboxinthetop-rightcornerofthescreen.
2.ClickPower2Gointhesearchresulttoopentheprogram.
3.Followtheinstructionsonthescreen.
YoualsocanuseWindowsMedia andSupport”onpage125.
®
PlayertorecordCDsanddataDVDs.Formoreinformation,see“Help
Chapter2.Usingyourcomputer23
24ThinkCentreM73UserGuide

Chapter3.Youandyourcomputer

Thischapterprovidesinformationaboutaccessibility,comfort,andrelocatingyourcomputertoother countriesorregions.

Accessibilityandcomfort

Goodergonomicpracticeisimportanttogetthemostfromyourpersonalcomputerandtoavoiddiscomfort. Arrangeyourworkplaceandtheequipmentyouusetosuityourindividualneedsandthekindofwork thatyouperform.Inaddition,usehealthyworkhabitstomaximizeyourperformanceandcomfortwhile usingyourcomputer.
Thefollowingtopicsprovideinformationaboutarrangingyourworkarea,settingupyourcomputer equipment,andestablishinghealthyworkhabits.

Arrangingyourworkspace

Togetthemostfromyourcomputer,arrangeboththeequipmentyouuseandyourworkareatosuityour needsandthekindofworkyoudo.Y ourcomfortisofforemostimportance,butlightsources,aircirculation, andthelocationofelectricaloutletscanalsoaffectthewayyouarrangeyourworkspace.

Comfort

Althoughnosingleworkingpositionisidealforeveryone,hereareafewguidelinestohelpyoufinda positionthatsuitsyoubest.
Sittinginthesamepositionforalongtimecancausefatigue.Thebackrestandseatofyourchairshould adjustindependentlyandprovidegoodsupport.Theseatshouldhaveacurvedfronttorelievepressureon thethighs.Adjusttheseatsothatyourthighsareparalleltothefloorandyourfeetareeitherflatonthe floororonafootrest.
Whenusingthekeyboard,keepyourforearmsparalleltothefloorandyourwristsinacomfortableposition. Usealighttouchonthekeyboardandyourhandsandfingersrelaxed.Changetheangleofthekeyboard formaximumcomfortbyadjustingthepositionofthekeyboardfeet.
Adjustthemonitorsothetopofthescreenisat,orslightlybelow,eyelevel.Placethemonitorata comfortableviewingdistance,usually51to61cm(20to24inches),andpositionitsoyoucanviewit withouthavingtotwistyourbody.Also,positionotherequipmentyouuseregularly,suchasthetelephoneor amouse,withineasyreach.
©CopyrightLenovo2013,2014
25

Glareandlighting

Positionthemonitortominimizeglareandreflectionsfromoverheadlights,windows,andotherlightsources. Reflectedlightfromshinysurfacescancauseannoyingreflectionsonyourmonitorscreen.Placethe monitoratrightanglestowindowsandotherlightsources,whenpossible.Reduceoverheadlighting,if necessary,byturningofflightsorusinglowerwattagebulbs.Ifyouinstallthemonitornearawindow,use curtainsorblindstoblockthesunlight.Youcanadjustthebrightnessandcontrastcontrolsonthemonitor astheroomlightingchangesthroughouttheday.
Whereitisimpossibletoavoidreflectionsortoadjustthelighting,anantiglarefilterplacedoverthescreen mightbehelpful.However,thesefiltersmightaffecttheclarityoftheimageonthescreen;trythemonlyafter youhaveexhaustedothermethodsofreducingglare.
Dustbuildupcompoundsproblemsassociatedwithglare.Remembertocleanyourmonitorscreen periodicallyusingasoftclothasdirectedinyourmonitordocumentation.

Aircirculation

Yourcomputerandmonitorproduceheat.Thecomputerhasafanthatpullsinfreshairandforcesouthot air.Themonitorletshotairescapethroughvents.Blockingtheairventscancauseoverheating,whichmight resultinamalfunctionordamage.Placethecomputerandmonitorsothatnothingblockstheairvents; usually,51mm(2inches)ofairspaceissufficient.Also,makesuretheventedairisnotblowingonpeople.

Electricaloutletsandcablelengths

Thelocationofelectricaloutlets,thelengthofpowercordsandcablesthatconnecttothemonitor,printer, andotherdevicesmightdeterminethefinalplacementofyourcomputer.
Whenarrangingyourworkspace:
•Avoidtheuseofextensioncords.Whenpossible,plugthecomputerpowercorddirectlyintoanelectrical outlet.
•Keeppowercordsandcablesneatlyroutedawayfromwalkwaysandotherareaswheretheymight getkickedaccidentally.
Formoreinformationaboutpowercords,see“Powercordsandpoweradapters”onpagevi.

Accessibilityinformation

Lenovoiscommittedtoprovidingpeoplewithdisabilitiesgreateraccesstoinformationandtechnology. Sometechnologiesarealreadyprovidedinyouroperatingsystem.Otherscanbepurchasedthrough vendors.
UsersalsocanusetheEaseofAccessCenterprovidedintheWindowsoperatingsystemtoconfiguretheir computerstosuittheirphysicalandcognitiveneeds.TheEaseofAccessCenterisacentrallocationthat youcanusetoconfiguretheaccessibilitysettingsandprogramsavailableintheWindowsoperatingsystem. TousetheEaseofAccessCenter,openControlPanelandclickEaseofAccessEaseofAccessCenter.
Thefollowinginformationprovideswaystohelpuserswhohavehearing,vision,andmobilitylimitationsget themostoutoftheircomputerexperience.
On-screennotification
On-screennotificationhelpshearing-impairedpeoplebeawareofthestatusoftheircomputer.On-screen notificationreplacessoundswithvisualcuesortextcaptionstoindicatethatactivityishappeningonthe computer.Asaresult,systemalertsarenoticeableevenwhentheyarenotheard.Forexample,whenyou
26ThinkCentreM73UserGuide
selectoneobjectwithyourkeyboard,theobjectishighlighted.Whenyoumovethepointertooneobject withyourmouse,theintroductorytextoftheobjectisdisplayed.
Touseon-screennotification,openControlPanel,clickEaseofAccessEaseofAccessCenter,and thenclickUsetextorvisualalternativesforsounds.
Audionotification
Audionotificationhelpsvisuallyimpairedpeopleorpeoplewithweaksightbeawareofthestatusoftheir computer.
Touseaudionotification,openControlPanel,clickEaseofAccessEaseofAccessCenterUsethe
computerwithoutadisplay,andthenselectTurnonAudioDescription.
Narrator
Narratorisascreenreaderthatreadswhatisdisplayedonthescreenaloudanddescribeseventslike errormessages.
ToopenNarrator,dothefollowing:
•ForWindows7:ClicktheStartbutton.Then,typeNarratorintothesearchfield.Inthelistofresults, clickNarrator.
•ForWindows8orWindows8.1:Moveyourpointertothetop-rightorbottom-rightcornerofthescreen todisplaythecharmsandclickSearch.Then,typeNarratorintothesearchfield.Inthelistofresults, clickNarrator.
FormoreinformationabouthowtouseandconfigureNarrator,seetheWindowsHelpandSupport informationsystem.
Screen-readertechnologies
Screen-readertechnologiesareprimarilyfocusedonsoftwareprograminterfaces,helpinformationsystems, andavarietyofonlinedocuments.Foradditionalinformationaboutscreenreaders,seethefollowing:
•UsingPDFswithscreenreaders: http://www.adobe.com/accessibility.html?promoid=DJGVE
•UsingtheJAWSscreenreader: http://www.freedomscientific.com/jaws-hq.asp
•UsingtheNVDAscreenreader: http://www.nvaccess.org/
SpeechRecognition
SpeechRecognitionenablesyoutocontrolyourcomputerbyvoice.
Usingonlyyourvoice,youcanstartprograms,openmenus,clickbuttonsandotherobjectsonthescreen, dictatetextintodocuments,andwriteandsende-mails.Everythingyoudowiththekeyboardandmouse canbedonewithonlyyourvoice.
ToopenSpeechRecognition,dothefollowing:
•ForWindows7:ClicktheStartbutton.Then,typeSpeechRecognitionintothesearchfield.Inthelist ofresults,clickSpeechRecognition.
•ForWindows8orWindows8.1:Moveyourpointertothetop-rightorbottom-rightcornerofthescreen todisplaythecharmsandclickSearch.Then,typeSpeechRecognitionintothesearchfield.Inthelist ofresults,clickSpeechRecognition.
Chapter3.Y ouandyourcomputer27
FormoreinformationabouthowtouseandconfigureSpeechRecognition,seetheWindowsHelpand Supportinformationsystem.
Customizabletextsize
Dependingonyourpreference,youcanchangeonlythetextsizeinsteadofchangingthesizeofeverything onthedesktop.Tochangethetextsize,openControlPanelandclickAppearancesandPersonalization
Display.Then,gotoChangeonlythetextsizeandsetatextsizethatmeetsyourneeds.
Magnifier
YourcomputerisequippedwiththeMicrosoftMagnifiertohelpvisuallyimpairedpeopleusethecomputer morecomfortably.Magnifierisausefulutilitythatenlargestheentirescreenorpartofthescreensothatyou canseethewordsandimagesbetter.Y oucanopenMagnifierfromtheEaseofAccessCenter.
ToopenMagnifier,dothefollowing:
•ForWindows7:ClicktheStartbutton,clickAllProgramsAccessoriesEaseofAccess,and thenclickMagnifier.
•ForWindows8orWindows8.1:Moveyourpointertothetop-rightorbottom-rightcornerofthescreen todisplaythecharmsandclickSearch.Then,typeMagnierintothesearchfield.Inthelistofresults, clickMagnifier.
FormoreinformationabouthowtouseandconfigureMagnifier,seetheWindowsHelpandSupport informationsystem.
Note:Fortouch-screencomputermodels,youalsocanzoominandzoomoutbyusingtouchgestures insteadofthekeyboard.See“Zoom”onpage28
.
Zoom
Youcanusethezoomfeaturetoenlargeorreducethesizeoftext,pictures,maps,orotherobjects.
•Fromthekeyboard:
–Zoomin:PresstheWindowslogokey+theplus-signkey(+)toenlargethesizeoftext,pictures,
maps,orotherobjects.
–Zoomout:PresstheWindowslogokey+theminus-sign(-)keytoreducethesizeoftext,pictures,
maps,orotherobjects.
•Fromthetouchscreen:
–Zoomin:Movetwofingersfartherapartonthetouchscreentoenlargethesizeoftext,pictures,
maps,orotherobjects.
–Zoomout:Movetwofingersclosertogetheronthetouchscreentoreducethesizeoftext,pictures,
maps,orotherobjects.
Screenresolution
Youcanmakeyourdocumentseasiertoreadbyadjustingthescreenresolutionofyourcomputer.Toadjust thescreenresolution,rightclickanywhereonthedesktop,clickScreenresolution,andthenadjustthe settingsasyouprefer.
Note:Settingtoolowofaresolutionmightpreventsomeitemsfromfittingonthescreen.
Foralternativesonincreasingthesizeoftextandotherobjects,seethefollowing:
“Customizabletextsize”onpage28
“Magnifier”onpage28
28ThinkCentreM73UserGuide
“Zoom”onpage28
EaseofAccesskeyboardshortcuts
Thefollowingtablecontainskeyboardshortcutsthatcanhelpmakeyourcomputereasiertouse.
KeyboardshortcutFunction
Windowslogokey+U
RightShiftforeightseconds
ShiftfivetimesTurnStickyKeysonoroff
NumLockforfivesecondsTurnToggleKeysonoroff
LeftAlt+LeftShift+NumLock
LeftAlt+LeftShift+PrtScn(orPrtSc)TurnHighContrastonoroff
OpentheEaseofAccessCenter
TurnFilterKeysonoroff
TurnMouseKeysonoroff
Formoreinformation,gotohttp://windows.microsoft.com/,andthentypeanyofthefollowingkeywords forsearching:keyboardshortcuts,keycombinations,shortcutkeys.
On-ScreenKeyboard
Ifyouprefertotypeorenterdataintoyourcomputerwithoutusingaphysicalkeyboard,youcanuse On-ScreenKeyboard.On-ScreenKeyboarddisplaysavisualkeyboardwithallthestandardkeys.Youcan selectkeysusingthemouseoranotherpointingdevice,oryoucantaptoselectthekeysifyourcomputer supportsmulti-touchscreen.
ToopenOn-ScreenKeyboard,dothefollowing:
•ForWindows7:ClicktheStartbutton.Then,typeOn-ScreenKeyboardintothesearchfield.Inthelistof results,clickOn-ScreenKeyboard.
•ForWindows8orWindows8.1:Moveyourpointertothetop-rightorbottom-rightcornerofthescreento displaythecharmsandclickSearch.Then,typeOn-ScreenKeyboardintothesearchfield.Inthelistof results,clickOn-ScreenKeyboard.
FormoreinformationabouthowtouseandconfigureOn-ScreenKeyboard,seetheWindowsHelpand Supportinformationsystem.
Personalizedkeyboard
Thetactilebumpsonthekeyboardprovideareferencepointfromwhichyoucaneasilylocateallkeyson thekeyboardwithoutvisualassistance.
Toadjustyourkeyboardsettings,openControlPanel,clickEaseofAccessEaseofAccessCenter, andthenclickMakethekeyboardeasiertouse.
Industry-standardconnectors
Yourcomputerprovidesindustry-standardconnectorsthatenableyoutoconnectassistivedevices, ifneeded.
Formoreinformationaboutthelocationandfunctionoftheconnectors,see“Locatingconnectors,controls, andindicatorsonthefrontofyourcomputer”onpage8
and“Locatingconnectorsontherearofyour
computer”onpage10.
Chapter3.Y ouandyourcomputer29
TTY/TDDconversionmodem
Yourcomputersupportstheuseofthetexttelephone(TTY)orthetelecommunicationsdeviceforthe deaf(TDD)conversionmodem.ThemodemmustbeconnectedbetweenyourcomputerandaTTY/TDD telephone.Then,youcantypeamessageonyourcomputerandsendittothetelephone.
Documentationinaccessibleformats
Lenovoprovideselectronicdocumentationinaccessibleformats.Lenovoelectronicdocumentation,suchas properlytaggedPDFfilesorHyperT extMarkupLanguage(HTML)files,isdevelopedtoensurethatvisually impaireduserscanreadthedocumentationthroughascreenreader.Eachimageinthedocumentationalso includesadequatealternativetexttoexplaintheimagesothatvisuallyimpaireduserscanunderstandthe imagewhentheyuseascreenreader.

Registeringyourcomputer

Whenyouregisteryourcomputer,informationisenteredintoadatabase,whichenablesLenovotocontact youincaseofarecallorothersevereproblem.AfteryouregisteryourcomputerwithLenovo,youwillreceive quickerservicewhenyoucallLenovoforhelp.Inaddition,somelocationsofferextendedprivilegesand servicestoregisteredusers.
ToregisteryourcomputerwithLenovo,dooneofthefollowing:
•Gotohttp://www.lenovo.com/registerandfollowtheinstructionsonthescreentoregisteryourcomputer.
•ConnectyourcomputertotheInternetandregisteryourcomputerthroughapreinstalledregistration program:
–ForWindows7:ThepreinstalledLenovoProductRegistrationprogramlaunchesautomaticallyafteryou
haveusedyourcomputerforatime.Followtheinstructionsonthescreentoregisteryourcomputer.
–ForWindows8orWindows8.1:OntheStartscreen,opentheLenovoSupportprogram.Thenclick
Registrationandfollowtheinstructionsonthescreentoregisteryourcomputer.

Movingyourcomputertoanothercountryorregion

Whenyoumoveyourcomputertoanothercountryorregion,youmusttakelocalelectricalstandards intoconsideration.
Ifyourelocateyourcomputertoacountryorregionthatusesanelectricaloutletstyledifferentfromthe typeyouarecurrentlyusing,youwillhavetopurchaseeitherelectricalplugadaptersornewpowercords. YoucanorderpowercordsdirectlyfromLenovo.
Forpowercordinformationandpartnumbers,goto: http://www.lenovo.com/powercordnotice
30ThinkCentreM73UserGuide

Chapter4.Security

Thischapterprovidesinformationabouthowtoprotectyourcomputerfromtheftandunauthorizeduse.

Securityfeatures

Thefollowingsecurityfeaturesareavailableonyourcomputer:
•ComputraceAgentsoftwareembeddedinfirmware TheComputraceAgentsoftwareisanITassetmanagementandcomputertheftrecoverysolution.
Thesoftwaredetectsifchangeshavebeenmadeonthecomputer,suchashardware,software,or thecomputercall-inlocation.
Note:YoumighthavetopurchaseasubscriptiontoactivatetheComputraceAgentsoftware.
•Coverpresenceswitch(alsocalledintrusionswitch) Thecoverpresenceswitchpreventsyourcomputerfromloggingintotheoperatingsystemwhenthe
computercoverisnotproperlyinstalledorclosed.Toenablethecoverpresenceswitchconnector onthesystemboard,tothefollowing:
1.StarttheSetupUtilityprogram.See“StartingtheSetupUtilityprogram”onpage93.
2.SettheAdministratorPassword.See“Setting,changing,anddeletingapassword”onpage94.
3.FromtheSecuritysubmenu,selectChassisIntrusionDetectionEnabled.Thecoverpresence switchconnectoronthesystemboardisenabled.
Whenthecoverpresenceswitchdetectsthatyourcomputercoverisnotproperlyinstalledorclosed whenyouturnonthecomputer,anerrormessagewillbedisplayed.T obypasstheerrormessageand logintotheoperatingsystem,dothefollowing:
1.Properlyinstallorcloseyourcomputercover.See“Completingthepartsreplacement”onpage82.
2.PressF1toentertheSetupUtilityprogram.ThenpressF10tosaveandexittheSetupUtility program.Theerrormessagewillnotbedisplayedagain.
•AbilitytoenableanddisabledevicesandUSBconnectors Formoreinformation,see“Enablingordisablingadevice”onpage95.
•Integratedfingerprintreader(availableonsomemodels) Dependingonthemodelsofyourcomputer,thekeyboardmayhaveanintegratedfingerprintreader.
ByenrollingyourfingerprintandassociatingitwithaPower-onPassword,aHardDiskPassword,or bothpasswordsbeforehand,youcanstartthecomputer,logontothesystem,andentertheSetup Utilityprogrambyswipingyourfingeroverthereader,withouttypingapassword.Thusfingerprint authenticationcanreplacepasswordsandenablesimpleandsecureuseraccess.
•Startupsequencecontrol Formoreinformation,see“Selectingorchangingthestartupdevicesequence”onpage96
•Startupwithoutkeyboardormouse Yourcomputerisabletologintotheoperatingsystemwithoutkeyboardormouseconnected.
.
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31

AttachingaKensington-stylecablelock

YoucanuseaKensington-stylecablelocktosecureyourcomputertoadesk,table,orothernon-permanent fixture.Thecablelockattachestothesecurity-lockslotattherearofyourcomputerandisoperatedwitha keyorcombinationdependingonthetypeselected.Thecablelockalsolocksthebuttonsusedtoopenthe computercover.Thisisthesametypeoflockusedwithmanynotebookcomputers.Youcanordersucha cablelockdirectlyfromLenovobysearchingforKensingtonat: http://www.lenovo.com/support
Figure6.Kensington-stylecablelock

Usingpasswords

YoucansetavarietyofpasswordsthroughtheMicrosoftWindowsoperatingsystemandthroughtheBIOS ofyourcomputertohelpdeterunauthorizeduseofyourcomputer.

BIOSpasswords

YoucanusetheBIOSSetupUtilityprogramtosetpasswordstopreventunauthorizedaccesstoyour computeranddata.Thefollowingtypesofpasswordsareavailable:
•Power-OnPassword:WhenaPower-OnPasswordisset,youarepromptedtotypeavalidpassword eachtimethecomputeristurnedon.Thecomputercannotbeuseduntilthevalidpasswordistyped in.Formoreinformation,see“Power-OnPassword”onpage94
•HardDiskPassword:SettingaHardDiskPasswordpreventsunauthorizedaccesstothedataonthehard diskdrive.WhenaHardDiskPasswordisset,youarepromptedtotypeavalidpasswordeachtimeyou trytoaccesstheharddiskdrive.Formoreinformation,see“HardDiskPassword”onpage94
•AdministratorPassword:SettinganAdministratorPassworddetersunauthorizedusersfromchanging configurationsettings.Ifyouareresponsibleformaintainingtheconfigurationsettingsofseveral
32ThinkCentreM73UserGuide
.
.
computers,youmightwanttosetanAdministratorPassword.Formoreinformation,see“Administrator Password”onpage94
Youdonothavetosetanypasswordstouseyourcomputer.However,usingpasswordsimproves computingsecurity.
.

Windowspasswords

DependingonyourversionoftheWindowsoperatingsystem,youcanusepasswordsforavarietyof features,includingcontrollingloginaccess,accesstosharedresources,networkaccess,andindividualuser settings.Formoreinformation,see“HelpandSupport”onpage125
.
Configuringthefingerprintreader
Ifyourkeyboardhasafingerprintreader,youcanconfigurethefingerprintreaderintheSetupUtilityprogram.
TheFingerprintSetupsubmenuundertheSecuritymenuoftheSetupUtilityprogramprovidesthe followingoptions:
PrebootAuthentication:enablesordisablesthefingerprintauthenticationforaccessingtheBIOS.
EraseFingerprintData:clearsthefingerprintdatastoredinafingerprintreader.
Toconfigurethefingerprintreader,dothefollowing:
1.StarttheSetupUtilityprogram.See“StartingtheSetupUtilityprogram”onpage93.
2.FromtheSetupUtilityprogrammainmenu,selectSecurityFingerprintSetup,andpressEnter. TheFingerprintSetupwindowopens.
3.SelectPrebootAuthenticationorEraseFingerprintDataasdesired,andpressEnter.
4.SelectthedesiredsettingsandpressEnter.
5.PressF10tosavechangesandexittheSetupUtilityprogram.PressEnterwhenpromptedtoconfirm theexit.
Usingandunderstandingfirewalls
Afirewallcanbehardware,software,oracombinationofbothdependingonthelevelofsecurityrequired. Firewallsworkonasetofrulestodeterminewhichinboundandoutboundconnectionsareauthorized.If yourcomputerispreinstalledwithafirewallprogram,ithelpsprotectagainstcomputerInternetsecurity threats,unauthorizedaccess,intrusions,andInternetattacks.Italsoprotectsyourprivacy.Formore informationabouthowtousethefirewallprogram,refertothehelpsystemofyourfirewallprogram.
TheWindowsoperatingsystempreinstalledonyourcomputerprovidestheWindowsFirewall.Fordetailson usingtheWindowsFirewall,referto“HelpandSupport”onpage125
.

Protectingdataagainstviruses

Yourcomputerispreinstalledwithanantivirusprogramtohelpyouguardagainst,detect,andeliminate viruses.
Lenovoprovidesafullversionofantivirussoftwareonyourcomputerwithafree30-daysubscription.After 30days,youmustrenewthelicensetocontinuereceivingtheantivirussoftwareupdates.
Note:Virusdefinitionfilesmustbekeptup-to-datetoguardagainstnewviruses.
Chapter4.Security33
Formoreinformationabouthowtouseyourantivirussoftware,refertothehelpsystemofyourantivirus software.
34ThinkCentreM73UserGuide

Chapter5.Installingorreplacinghardware

Thischapterprovidesinstructionsonhowtoinstallorreplacehardwareforyourcomputer.

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:
Donotopenyourcomputerorattemptanyrepairbeforereadingandunderstandingthe“Importantsafetyinformation” onpagev.
Notes:
•UseonlycomputerpartsprovidedbyLenovo.
•Wheninstallingorreplacinganoption,usetheappropriateinstructionsinthissectionalongwiththe instructionsthatcomewiththeoption.

Installingexternaloptions

Youcanconnectexternaloptionstoyourcomputer,suchasexternalspeakers,aprinter,orascanner.For someexternaloptions,youmustinstalladditionalsoftwareinadditiontomakingthephysicalconnection. Wheninstallinganexternaloption,see“Locatingconnectors,controls,andindicatorsonthefrontofyour computer”onpage8and“Locatingconnectorsontherearofyourcomputer”onpage10toidentifythe requiredconnector.Then,usetheinstructionsthatcomewiththeoptiontohelpyoumaketheconnection andinstallanysoftwareordevicedriversthatarerequiredfortheoption.
©CopyrightLenovo2013,2014
35

Installingorremovingtheacpoweradapter

Attention:
Donotopenyourcomputerorattemptanyrepairbeforereadingandunderstandingthe“Importantsafetyinformation” onpagev.
Thissectionprovidesinstructionsonhowtoinstallorremovetheacpoweradapter.
Toinstalltheacpoweradapter,connecttheacpoweradaptertotheacpoweradapterconnectoratthe rearofyourcomputerandaworkableelectricaloutlet.Securethepowercordintothepoweradapter cableloopattherearofthecomputerasshown.
Figure7.Connectingtheacpoweradapter
Toremovetheacpoweradapter,dothefollowing:
1.T urnoffthecomputeranddisconnectallpowercordsfromelectricaloutlets.
36ThinkCentreM73UserGuide
2.Removethepowercordfromtheacpoweradaptercableloopattherearofthecomputerandthen disconnecttheacpoweradapterfromthecomputer.
Figure8.Disconnectingtheacpoweradapter
Whattodonext:
•Toworkwithanotherpieceofhardware,gototheappropriatesection.

Installingorremovingtheverticalstand

Attention:
Donotopenyourcomputerorattemptanyrepairbeforereadingandunderstandingthe“Importantsafetyinformation” onpagev
Thissectionprovidesinstructionsonhowtoinstallorremovetheverticalstand.
Note:TheverticalstandandVideoElectronicsStandardsAssociation(VESA parts.IfyourcomputercomeswiththeVESAmountbracketinstalled,ensurethatyouremovetheVESA mountbracketbeforeyouinstalltheverticalstand.ToremovetheVESAmountbracket,see“Installingor removingtheVESAmountbracket”onpage39.
.
®
)mountbracketareoptional
Chapter5.Installingorreplacinghardware37
Toinstalltheverticalstand,dothefollowing:
1.T urnoffthecomputer.
2.Aligntherearofthecomputerwiththerearoftheverticalstandandpositionthecomputeronthe verticalstandasshown.
Figure9.Installingtheverticalstand
Toremovetheverticalstand,dothefollowing:
1.T urnoffthecomputer.
38ThinkCentreM73UserGuide
2.Liftthecomputertoremoveitfromtheverticalstand.
Figure10.Removingthecomputerfromtheverticalstand

InstallingorremovingtheVESAmountbracket

Attention:
Donotopenyourcomputerorattemptanyrepairbeforereadingandunderstandingthe“Importantsafetyinformation” onpagev.
ThissectionprovidesinstructionsonhowtoinstallorremovetheVESAmountbracket.
Note:TheVESAmountbracketisonlyavailableonsomemodels.
ToinstalltheVESAmountbracket,dothefollowing:
1.T urnoffthecomputeranddisconnectallpowercordsfromelectricaloutlets.
Chapter5.Installingorreplacinghardware39
2.SlidethecomputerintotheVESAmountbracket.
Figure11.InstallingtheVESAmountbracket
3.InstallthetwoscrewstosecuretheVESAmountbrackettothecomputer.
Figure12.InstallingthescrewsthatsecuretheVESAmountbracket
ToremovetheVESAmountbracket,dothefollowing:
1.T urnoffthecomputeranddisconnectallpowercordsfromtheelectricaloutlets.
40ThinkCentreM73UserGuide
2.RemovethetwoscrewsthatsecuretheVESAmountbrackettothecomputer.
Figure13.RemovingthescrewsthatsecuretheVESAmountbracket
3.SlidethecomputerfromthefrontoftheVESAmountbrackettoremovetheVESAmountbracket fromthecomputer.
Figure14.RemovingtheVESAmountbracket

Installingorremovingtheacpoweradapterbracket

Attention:
Donotopenyourcomputerorattemptanyrepairbeforereadingandunderstandingthe“Importantsafetyinformation” onpagev.
Thissectionprovidesinstructionsonhowtoinstallorremovetheacpoweradapterbracket.
Note:Theacpoweradapterbracketisonlyavailableonsomemodels.
Toremovetheacpoweradapterbracket,dothefollowing:
Chapter5.Installingorreplacinghardware41
1.T urnoffthecomputeranddisconnectallpowercordsfromelectricaloutlets.
2.Pullthetab1andthenslidetheacpoweradapterbracketasshowntoremoveitfromtheVESA mountbracket.
Figure15.Removingtheacpoweradapterbracket
42ThinkCentreM73UserGuide
ToinstalltheacpoweradapterbrackettotheVESAmountbracket,alignthetwotabsontheacpower adapterbracketwiththeslotsintheVESAmountbracket,andthenslidetheacpoweradapterbracket asshowntoinstallitontheVESAmountbracket.
Figure16.Installingtheacpoweradapterbracket

Replacingtheopticaldrive

Attention:
Donotopenyourcomputerorattemptanyrepairbeforereadingandunderstandingthe“Importantsafetyinformation” onpagev
Thissectionprovidesinstructionsonhowtoreplacetheopticaldrive.
Note:Theopticaldriveisonlyavailableonsomemodels.
Toreplacetheopticaldrive,dothefollowing:
1.T urnoffthecomputeranddisconnectallpowercordsfromelectricaloutlets.
2.DisconnecttheopticaldrivecablefromtheUSBconnectoronthecomputer.
.
Chapter5.Installingorreplacinghardware43
3.RemovethescrewthatsecurestheopticaldriveboxontheVESAmountbracketandthenslidethe opticaldriveboxtoremoveitfromtheVESAmountbracket.
Figure17.Removingtheopticaldrivebox
4.Removethescrewthatsecurestheopticaldriveintheopticaldrivebox.Usethescrewdrivertoslide theopticaldriveforwardandthenremovetheopticaldrivefromtheopticaldrivebox.
Figure18.Removingtheopticaldrivefromtheopticaldrivebox
44ThinkCentreM73UserGuide
5.Removethetwoscrewsthatsecuretheopticaldrivemetalplateandthenremovethemetalplate fromtheopticaldrive.
Figure19.Removingtheopticaldrivemetalplate
6.Alignthetwoscrewholesintheopticaldrivemetalplatewiththecorrespondingholesinthenewoptical driveandtheninstallthetwoscrewstosecurethemetalplateonthenewopticaldrive.
Figure20.Installingtheopticaldrivemetalplate
Chapter5.Installingorreplacinghardware45
7.Slidethenewopticaldriveintotheopticaldriveboxuntilitsnapsintoposition.
Figure21.Installingtheopticaldriveintotheopticaldrivebox
8.Installthescrewthatsecurestheopticaldriveintheopticaldrivebox.
Figure22.Installingthescrewthatsecurestheopticaldrive
46ThinkCentreM73UserGuide
9.AlignthescrewholesintheopticaldriveboxwiththetwoscrewsontheVESAmountbracketandthen slidetheopticaldriveboxtoinstallitontheVESAmountbracket.
Figure23.Installingtheopticaldrivebox
Chapter5.Installingorreplacinghardware47
10.InstallthescrewthatsecurestheopticaldriveboxontheVESAmountbracket.
Figure24.Installingthescrewthatsecurestheopticaldrivebox
11.ConnecttheopticaldrivecabletoaUSBconnectoronthecomputer.See“Locatingconnectorsonthe rearofyourcomputer”onpage10.
Whattodonext:
•Toworkwithanotherpieceofhardware,gototheappropriatesection.
•Tocompletetheinstallationorreplacement,goto“Completingthepartsreplacement”onpage82.

Replacingthesecondaryharddiskdrive

Attention:
Donotopenyourcomputerorattemptanyrepairbeforereadingandunderstandingthe“Importantsafetyinformation” onpagev.
Thissectionprovidesinstructionsonhowtoreplacethesecondaryharddiskdrive.
Note:Thesecondaryharddiskdriveisonlyavailableonsomemodels.
Toreplacethesecondaryharddiskdrive,dothefollowing:
1.T urnoffthecomputeranddisconnectallpowercordsfromelectricaloutlets.
2.DisconnectthesecondaryharddiskdrivecablefromtheUSBconnectoronthecomputer.
48ThinkCentreM73UserGuide
3.RemovethescrewthatsecurestheopticaldriveboxontheVESAmountbracketandthenslidethe opticaldriveboxasshowntoremoveitfromtheVESAmountbracket.
Figure25.Removingtheopticaldrivebox
4.Slidethereleasebuttonontheopticaldriveboxandthenremovethesecondaryharddiskdriveadapter fromtheopticaldrivebox.
Figure26.Removingthesecondaryharddiskdriveadapterfromtheopticaldrivebox
Chapter5.Installingorreplacinghardware49
5.Flexthesidesoftheharddiskdriveadapterbracketandthenpivottheharddiskdriveadapterto removetheadapterfromtheadapterbracket.
Figure27.Removingtheharddiskdriveadapterfromtheadapterbracket
6.T oremovetheharddiskdrivefromtheadapter,lifttheadapterretaininglatch.Slidetheharddiskdrive towardstheretaininglatchandthenlifttheharddiskdriveoutoftheadapter.
Figure28.Removingthesecondaryharddiskdrivefromtheadapter
7.Installthefourscrewstothenewharddiskdrive.
Figure29.Installingthefourscrewstotheharddiskdrive
50ThinkCentreM73UserGuide
8.Installthenewharddiskdriveintotheadapterasshown.Then,lowertheadapterretaininglatchuntil itsnapsintoposition.
Figure30.Installinganewharddiskdriveintotheadapter
9.Positiontheadapterintotheadapterbracketandthenpivottheadapterdownwarduntilitsnapsinto position.
Figure31.Installingtheharddiskdriveadapterintotheadapterbracket
Chapter5.Installingorreplacinghardware51
10.Slidetheadapterbracketintotheopticaldriveboxuntilitsnapsintoposition.
Figure32.Installingtheadapterbracketintotheopticaldrivebox
52ThinkCentreM73UserGuide
11.AlignthescrewholesintheopticaldriveboxwiththetwoscrewsontheVESAmountbracketandthen slidetheopticaldriveboxtoinstallitontheVESAmountbracket.
Figure33.Installingtheopticaldrivebox
Chapter5.Installingorreplacinghardware53
12.InstallthescrewthatsecurestheopticaldriveboxontheVESAmountbracket.
Figure34.Installingthescrewthatsecurestheopticaldrivebox
13.ConnectthesecondaryharddiskdrivecabletoaUSBconnectoronthecomputer.See“Locating connectorsontherearofyourcomputer”onpage10.
Whattodonext:
•Toworkwithanotherpieceofhardware,gototheappropriatesection.
•Tocompletetheinstallationorreplacement,goto“Completingthepartsreplacement”onpage82.

InstallingorremovingtheI/Obox

Attention:
Donotopenyourcomputerorattemptanyrepairbeforereadingandunderstandingthe“Importantsafetyinformation” onpagev.
ThissectionprovidesinstructionsonhowtoinstallorremovetheI/Obox.
Note:TheI/Oboxisonlyavailableonsomemodels.
TheI/Oboxprovidesthefollowingconnectorsforconnectingtoexternaldevices:
•FourUSB2.0connectors(twoonthefrontandtwoontherear)
•Oneserialport
•TwoPS/2connectors(oneforkeyboardandoneformouse)
ToremovetheI/Obox,dothefollowing:
1.T urnoffthecomputeranddisconnectallpowercordsfromelectricaloutlets.
2.DisconnecttheI/OboxcablefromtheUSBconnectoronthecomputer.
54ThinkCentreM73UserGuide
3.RemovethescrewthatsecurestheI/OboxontheVESAmountbracketandthenslidetheI/Oboxas showntoremoveitfromtheVESAmountbracket.
Figure35.RemovingtheI/Obox
ToinstalltheI/Obox,dothefollowing:
1.T urnoffthecomputeranddisconnectallpowercordsfromelectricaloutlets.
Chapter5.Installingorreplacinghardware55
2.AlignthetwoholesintheI/OboxwiththetwoscrewsontheVESAmountbracketandthenslidetheI/O boxasshowntoinstallitontheVESAmountbracket.
Figure36.InstallingtheI/Obox
56ThinkCentreM73UserGuide
3.InstallthescrewtosecuretheI/OboxontheVESAmountbracket.
Figure37.InstallingthescrewtosecuretheI/Obox
4.ConnecttheI/OboxcabletoaUSBconnectorontherearofyourcomputer.See“Locatingconnectors ontherearofyourcomputer”onpage10.

Removingthecomputercover

Attention:
Donotopenyourcomputerorattemptanyrepairbeforereadingandunderstandingthe“Importantsafetyinformation” onpagev
Thissectionprovidesinstructionsonhowtoremovethecomputercover.
CAUTION:
Beforeyouopenthecomputercover,turnoffthecomputerandwaitseveralminutesuntilthe computeriscool.
Toremovethecomputercover,dothefollowing:
1.Removeanymediafromthedrivesandturnoffallattacheddevicesandthecomputer.
2.Disconnectallpowercordsfromelectricaloutlets.
3.Disconnectthepowercord,Input/Outputcables,andanyothercablesthatareconnectedtothe
4.Removeanylockingdevicethatsecuresthecomputercover,suchasaKensington-stylecablelock.
.
computer.
See“AttachingaKensington-stylecablelock”onpage32.
Chapter5.Installingorreplacinghardware57
5.Removethescrewthatsecuresthecomputercover.
Figure38.Removingthecomputercoverscrew
58ThinkCentreM73UserGuide
6.Slidethecomputercovertothefrontofthecomputerasmallamount.Then,liftthecomputercoverto removeitfromthecomputer.
Figure39.Removingthecomputercover

Installingorremovingtheharddiskdriveassembly

Attention:
Donotopenyourcomputerorattemptanyrepairbeforereadingandunderstandingthe“Importantsafetyinformation” onpagev.
Thissectionprovidesinstructionsonhowtoinstallorremovetheharddiskdriveassembly.
Toremovetheharddiskdriveassembly,dothefollowing:
1.T urnoffthecomputeranddisconnectallpowercordsfromelectricaloutlets.
2.Removethecomputercover.See“Removingthecomputercover”onpage57.
3.Locatetheharddiskdrive.See“Locatingcomponents”onpage12.
4.Disconnectthesignalcableandthepowercablefromtheharddiskdrive.
Chapter5.Installingorreplacinghardware59
5.Removethetwoscrewsthatsecuretheharddiskdriveassembly.Slidetheharddiskdriveassemblyas shown,andthenlifttheharddiskdriveassemblytoremoveitfromthecomputer.
Figure40.Removingtheharddiskdriveassembly
Toinstalltheharddiskdriveassembly,dothefollowing:
1.Positiontheharddiskdriveassemblyonthesystemboardsothatthetwoholesintheharddiskdrive bracketarealignedwiththestandoffsonthesystemboard.Slidetheharddiskdriveassemblyasshown untilthetwoscrewholes1arealignedwiththecorrespondingscrewpostsonthesystemboard.
Figure41.Installingtheharddiskdriveassembly
60ThinkCentreM73UserGuide
2.Installthetwoscrewstosecuretheharddiskdriveassembly.
Figure42.Installingthescrewstosecuretheharddiskdriveassembly
3.Connectthesignalcableandthepowercabletotheharddiskdrive.
Whattodonext:
•Toworkwithanotherpieceofhardware,gototheappropriatesection.
•Tocompletetheinstallationorreplacement,goto“Completingthepartsreplacement”onpage82
.

Installingorreplacingamemorymodule

Attention:
Donotopenyourcomputerorattemptanyrepairbeforereadingandunderstandingthe“Importantsafetyinformation” onpagev.
Thissectionprovidesinstructionsonhowtoinstallorreplaceamemorymodule.
YourcomputerhastwoslotsforinstallingorreplacingDDR3SODIMMsthatprovideuptoamaximumof 16GBsystemmemory.Wheninstallingorreplacingamemorymodule,use2GB,4GB,or8GBDDR3 SODIMMsinanycombinationuptoamaximumof16GB.
Toinstallorreplaceamemorymodule,dothefollowing:
1.T urnoffthecomputeranddisconnectallpowercordsfromelectricaloutlets.
2.Removethecomputercover.See“Removingthecomputercover”onpage57.
3.Locatethememoryslots.See“Locatingpartsonthesystemboard”onpage13.
4.Removetheharddiskdriveassemblytogetaccesstothememoryslots.See“Installingorremovingthe harddiskdriveassembly”onpage59.
Chapter5.Installingorreplacinghardware61
5.Ifyouarereplacinganoldmemorymodule,opentheretainingclipsandgentlypullthememorymodule outofthememoryslot.
Figure43.Removingthememorymodule
6.Insertthenotchedend2ofthenewmemorymoduleintotheslot1.Pressthememorymodule firmlyandpivotthememorymoduleuntilitsnapsintoplace.Makesurethatthememorymoduleis securedintheslotanddoesnotmoveeasily.
Figure44.Installingamemorymodule
7.Reinstalltheharddiskdriveassembly.See“Installingorremovingtheharddiskdriveassembly” onpage59.
Whattodonext:
•Toworkwithanotherpieceofhardware,gototheappropriatesection.
•Tocompletetheinstallationorreplacement,goto“Completingthepartsreplacement”onpage82.

Replacingthebattery

Attention:
Donotopenyourcomputerorattemptanyrepairbeforereadingandunderstandingthe“Importantsafetyinformation” onpagev.
62ThinkCentreM73UserGuide
Yourcomputerhasaspecialtypeofmemorythatmaintainsthedate,time,andsettingsforbuilt-infeatures, suchasparallel-connectorassignments(configuration).Abatterykeepsthisinformationactivewhenyou turnoffthecomputer.
Thebatterynormallyrequiresnochargingormaintenancethroughoutitslife;however,nobatterylasts forever.Ifthebatteryfails,thedate,time,andconfigurationinformation(includingpasswords)arelost.An errormessageisdisplayedwhenyouturnonthecomputer.
Refertothe“Lithiumcoincellbatterynotice”intheSafety,Warranty,andSetupGuideforinformationabout replacinganddisposingofthebattery.
Toreplacethebattery,dothefollowing:
1.T urnoffthecomputeranddisconnectallpowercordsfromelectricaloutlets.
2.Removethecomputercover.See“Removingthecomputercover”onpage57.
3.Locatethebattery.See“Locatingpartsonthesystemboard”onpage13.
4.Removetheharddiskdriveassemblytogetaccesstothebattery.See“Installingorremovingthe harddiskdriveassembly”onpage59.
5.Removetheoldbattery.
Figure45.Removingtheoldbattery
6.Installanewbattery.
Figure46.Installinganewbattery
7.Reinstalltheharddiskdriveassembly.See“Installingorremovingtheharddiskdriveassembly” onpage59.
8.Reinstallthecomputercoverandconnectthecables.See“Completingthepartsreplacement”on page82.
Note:Whenthecomputeristurnedonforthefirsttimeafterreplacingthebattery,anerrormessage mightbedisplayed.Thisisnormalafterreplacingthebattery.
9.T urnonthecomputerandallattacheddevices.
Chapter5.Installingorreplacinghardware63
10.UsetheSetupUtilityprogramtosetthedate,time,andanypasswords.SeeChapter7“UsingtheSetup Utilityprogram”onpage93
.

ReplacingthePowerbuttonboard

Attention:
Donotopenyourcomputerorattemptanyrepairbeforereadingandunderstandingthe“Importantsafetyinformation” onpagev.
ThissectionprovidesinstructionsonhowtoreplacethePowerbuttonboard.
ToreplacethePowerbuttonboard,dothefollowing:
1.T urnoffthecomputeranddisconnectallpowercordsfromelectricaloutlets.
2.Removethecomputercover.See“Removingthecomputercover”onpage57.
3.LocatethePowerbuttonboard.See“Locatingcomponents”onpage12.
4.Removetheharddiskdriveassembly.See“Installingorremovingtheharddiskdriveassembly”on page59.
5.DisconnectthePowerbuttonboardcablefromthecorrespondingconnectoronthesystemboard.
6.RemovethescrewthatsecuresthePowerbuttonboardtothecomputer,andthenpullthePower buttonboardtoremoveitfromthecomputer.
Figure47.RemovingthePowerbuttonboard
64ThinkCentreM73UserGuide
7.Alignthehole1inthenewPowerbuttonboardwiththetab2onthecomputerandpositionthenew Powerbuttonboardinthecomputer.Then,installthescrewtosecurethenewPowerbuttonboard onthechassis.
Figure48.InstallingthePowerbuttonboard
8.ConnectthePowerbuttonboardcabletothePowerbuttonboardcableconnectoronthesystemboard. See“Locatingpartsonthesystemboard”onpage13.
9.Reinstalltheharddiskdriveassembly.See“Installingorremovingtheharddiskdriveassembly” onpage59.
Whattodonext:
•Toworkwithanotherpieceofhardware,gototheappropriatesection.
•Tocompletetheinstallationorreplacement,goto“Completingthepartsreplacement”onpage82.

ReplacingtheWi-Ficardmodule

Attention:
Donotopenyourcomputerorattemptanyrepairbeforereadingandunderstandingthe“Importantsafetyinformation” onpagev
ThissectionprovidesinstructionsonhowtoreplacetheWi-Ficardmodule.
Note:TheWi-Ficardmoduleisonlyavailableinsomemodels.
ToreplacetheWi-Ficardmodule,dothefollowing:
1.T urnoffthecomputeranddisconnectallpowercordsfromelectricaloutlets.
2.Removethecomputercover.See“Removingthecomputercover”onpage57.
.
Chapter5.Installingorreplacinghardware65
3.Removetheharddiskdriveassembly.See“Installingorremovingtheharddiskdriveassembly”on page59.
4.LocatetheWi-Ficardmoduleinthecomputer.See“Locatingcomponents”onpage12.
5.DisconnecttheWi-FiantennacablesfromtheWi-Ficardmodule.
Figure49.RemovingtheWi-Ficardmodulecables
6.CarefullypivottheWi-Ficardmoduleuptoreleaseitfromtheplasticpostthatsecuresit.Then,pullthe Wi-FicardmoduletoremoveitfromtheminiPCIExpresscardslot.
Note:DonotoverpivottheWi-Ficardmodule.
Figure50.RemovingtheWi-Ficardmodule
7.InsertthenewWi-FicardmoduleintotheminiPCIExpresscardslot.Then,pivottheWi-Ficardmodule downwarduntilitsnapsintopositionandissecuredbytheplasticpost.
Note:DonottouchthenotchededgeoftheWi-Ficardmodule.
Figure51.InstallingtheWi-Ficardmodule
8.ConnecttheWi-FiantennacablestotheWi-Ficardmodule.
Figure52.ConnectingtheWi-Fiantennacables
9.Reinstalltheharddiskdriveassembly.See“Installingorremovingtheharddiskdriveassembly” onpage59.
66ThinkCentreM73UserGuide
Whattodonext:
•Toworkwithanotherpieceofhardware,gototheappropriatesection.
•Tocompletetheinstallationorreplacement,goto“Completingthepartsreplacement”onpage82.

InstallingorremovingthefrontWi-Fiantenna

Attention:
Donotopenyourcomputerorattemptanyrepairbeforereadingandunderstandingthe“Importantsafetyinformation” onpagev.
ThissectionprovidesinstructionsonhowtoinstallorremovethefrontWi-Fiantenna.
Note:ThefrontWi-Fiantennaisonlyavailableonsomemodels.
ToinstallthefrontWi-Fiantenna,dothefollowing:
1.T urnoffthecomputeranddisconnectallpowercordsfromelectricaloutlets.
2.Removethecomputercover.See“Removingthecomputercover”onpage57.
3.Removetheharddiskdriveassembly.See“Installingorremovingtheharddiskdriveassembly”on page59.
4.PeeloffthepaperthatprotectsthestickeronthebottomofthefrontWi-Fiantenna.
Figure53.Peelingoffthepaperthatprotectsthesticker
5.AlignthetwosmallcolumnsonthebottomofthefrontWi-Fiantennawiththetwoholesintheharddisk drivebracketasshown.Then,stickthefrontWi-Fiantennaontotheharddiskdrivebracket.
Figure54.StickingthefrontWi-Fiantenna
Chapter5.Installingorreplacinghardware67
6.RoutethefrontWi-Fiantennacablethroughthefivehooksintheharddiskdrivebracketasshown.
Figure55.RoutingthefrontWi-Fiantennacable
7.Reinstalltheharddiskdriveassemblywithoutconnectingthesignalcableandpowercable.See “Installingorremovingtheharddiskdriveassembly”onpage59.
8.RoutethefrontWi-Fiantennacableasshown,andthenconnectittotheWi-Ficardmodule.
Figure56.InstallingthefrontWi-Fiantennacable
9.Reconnectthesignalcableandpowercabletotheharddiskdrive.
ToremovetherearWi-Fiantenna,dothefollowing:
1.T urnoffthecomputeranddisconnectallpowercordsfromelectricaloutlets.
2.Disconnectthesignalcableandpowercablefromtheharddiskdrive.
3.DisconnectthefrontWi-FiantennacablefromtheWi-Ficardmodule.
4.Removetheharddiskdriveassembly.See“Installingorremovingtheharddiskdriveassembly”on page59
.
68ThinkCentreM73UserGuide
5.ReleasethefrontWi-Fiantennacablefromthehooksontheharddiskdrivebracket.Then,unstickthe frontWi-Fiantennafromtheharddiskdrivebracket.
Figure57.RemovingthefrontWi-Fiantennacable
Whattodonext:
•Toworkwithanotherpieceofhardware,gototheappropriatesection.
•Tocompletetheinstallationorreplacement,goto“Completingthepartsreplacement”onpage82.

InstallingorremovingtherearWi-Fiantenna

Attention:
Donotopenyourcomputerorattemptanyrepairbeforereadingandunderstandingthe“Importantsafetyinformation” onpagev
ThissectionprovidesinstructionsonhowtoinstallorremovetherearWi-Fiantenna.
Note:TherearWi-Fiantennaisonlyavailableonsomemodels.
ToinstalltherearWi-Fiantenna,dothefollowing:
1.T urnoffthecomputeranddisconnectallpowercordsfromelectricaloutlets.
2.InstalltherearWi-FiantennatotherearWi-Fiantennacableconnectorattachedontherearofthe
.
computer.
Chapter5.Installingorreplacinghardware69
3.Adjusttheangleoftherearantennatolowertheriskofbreakingtheantennabyaccident.
Figure58.InstallingtherearWi-Fiantenna
ToremovetherearWi-Fiantenna,dothefollowing:
1.T urnoffthecomputeranddisconnectallpowercordsfromelectricaloutlets.
2.StraightentherearWi-Fiantennasothatitcanbemoreeasilytwisted.
3.HoldthethickerendoftherearWi-FiantennaandunscrewtheWi-Fiantennafromtherearofthe computer.
Figure59.RemovingtherearWi-Fiantenna
Whattodonext:
•Toworkwithanotherpieceofhardware,gototheappropriatesection.
•Tocompletetheinstallationorreplacement,goto“Completingthepartsreplacement”onpage82.
70ThinkCentreM73UserGuide

Replacingtheinternalspeaker

Attention:
Donotopenyourcomputerorattemptanyrepairbeforereadingandunderstandingthe“Importantsafetyinformation” onpagev.
Thissectionprovidesinstructionsonhowtoreplacetheinternalspeaker.
Toreplacetheinternalspeaker,dothefollowing:
1.T urnoffthecomputeranddisconnectallpowercordsfromelectricaloutlets.
2.Removethecomputercover.See“Removingthecomputercover”onpage57.
3.Locatetheinternalspeakerinthecomputer.See“Locatingpartsonthesystemboard”onpage13.
4.Removetheharddiskdriveassembly.See“Installingorremovingtheharddiskdriveassembly”on page59.
5.Disconnecttheinternalspeakercablefromthesystemboard..
6.Releasetheinternalspeakercablefromtheretainingcliponthesideofthethermalmodulebracket.
Figure60.Releasingtheinternalspeakercable
Chapter5.Installingorreplacinghardware71
7.Pressthetab1thatsecurestheinternalspeakerasshownandthenlifttheinternalspeakeroutof theinternalspeakerholder.
Figure61.Removingtheinternalspeaker
8.Pressthetab1asshownandinsertthenewinternalspeakerintotheinternalspeakerholderuntilthe newinternalspeakersnapsintopositionandissecuredbythetab1.
Figure62.Installingtheinternalspeaker
72ThinkCentreM73UserGuide
9.Securethecableofthenewinternalspeakerintheretainingcliponthesideofthethermalmodule bracket.
Figure63.Securingtheinternalspeakercable
10.Connectthecableofthenewinternalspeakertotheinternalspeakerconnectoronthesystemboard. See“Locatingpartsonthesystemboard”onpage13.
11.Reinstalltheharddiskdriveassembly.See“Installingorremovingtheharddiskdriveassembly” onpage59.
Whattodonext:
•Toworkwithanotherpieceofhardware,gototheappropriatesection.
•Tocompletetheinstallationorreplacement,goto“Completingthepartsreplacement”onpage82.

Replacingthecoverpresenceswitch

Attention:
Donotopenyourcomputerorattemptanyrepairbeforereadingandunderstandingthe“Importantsafetyinformation” onpagev.
Thissectionprovidesinstructionsonhowtoreplacethecoverpresenceswitch(alsoknownasintrusion switch).
Toreplacethecoverpresenceswitch,dothefollowing:
1.T urnoffthecomputeranddisconnectallpowercordsfromelectricaloutlets.
2.Removethecomputercover.See“Removingthecomputercover”onpage57.
3.Locatethecoverpresenceswitchinthecomputer.See“Locatingcomponents”onpage12.
4.Disconnectthecoverpresenceswitchcablefromthesystemboard.
Chapter5.Installingorreplacinghardware73
5.Pullthecoverpresenceswitchtoremoveitfromtheheatsinkbracket.
Figure64.Removingthecoverpresenceswitch
6.Attachthenewcoverpresenceswitchtothethermalmodule.
Figure65.Installingthecoverpresenceswitch
7.Connectthecableofthenewcoverpresenceswitchtothecoverpresenceswitchconnectoronthe systemboard.See“Locatingpartsonthesystemboard”onpage13.
74ThinkCentreM73UserGuide
Whattodonext:
•Toworkwithanotherpieceofhardware,gototheappropriatesection.
•Tocompletetheinstallationorreplacement,goto“Completingthepartsreplacement”onpage82.

Replacingthesystemfan

Attention:
Donotopenyourcomputerorattemptanyrepairbeforereadingandunderstandingthe“Importantsafetyinformation” onpagev.
Thissectionprovidesinstructionsonhowtoreplacethesystemfan.
CAUTION: Hazardousmovingparts.Keepfingersandotherbodypartsaway.
Toreplacethesystemfan,dothefollowing:
1.T urnoffthecomputeranddisconnectallpowercordsfromelectricaloutlets.
2.Removethecomputercover.See“Removingthecomputercover”onpage57.
3.Locatethesystemfaninthecomputer.See“Locatingcomponents”onpage12.
4.Disconnectthesystemfancablefromthesystemboard.
Chapter5.Installingorreplacinghardware75
5.Removethethreescrewsthatsecurethesystemfantothethermalmodule,andthenliftthesystem fantoremoveitfromthecomputer.
Figure66.Removingthesystemfan
76ThinkCentreM73UserGuide
6.Positionthenewsystemfanonthechassissothatthethreescrewholesinthenewsystemfanare alignedwiththescrewpostsonthethermalmodule.Then,installthethreescrewstosecurethe systemfantothecomputer.
Figure67.Installingthesystemfan
7.Connectthecableofthenewsystemfantothesystemfanconnectoronthesystemboard.See “Locatingpartsonthesystemboard”onpage13.
Whattodonext:
•Toworkwithanotherpieceofhardware,gototheappropriatesection.
•Tocompletetheinstallationorreplacement,goto“Completingthepartsreplacement”onpage82.

Replacingthethermalmodule

Attention:
Donotopenyourcomputerorattemptanyrepairbeforereadingandunderstandingthe“Importantsafetyinformation” onpagev.
Thissectionprovidesinstructionsonhowtoreplacethethermalmodule.
CAUTION:
Thethermalmodulemightbeveryhot.Beforeyouopenthecomputercover,turnoffthecomputer andwaitseveralminutesuntilthecomputeriscool.
Toreplacethethermalmodule,dothefollowing:
1.T urnoffthecomputeranddisconnectallpowercordsfromelectricaloutlets.
2.Removethecomputercover.See“Removingthecomputercover”onpage57.
Chapter5.Installingorreplacinghardware77
3.Locatethethermalmoduleinthecomputer.See“Locatingcomponents”onpage12.
4.Removetheinternalspeaker.See“Replacingtheinternalspeaker”onpage71.
5.Removethecoverpresenceswitch.See“Replacingthecoverpresenceswitch”onpage73.
6.Removethesystemfan.See“Locatingcomponents”onpage12.
7.Followthefollowingsequencetoremovethefourscrewsthatsecurethethermalmoduletothesystem board:
a.Partiallyremovescrew1,thenfullyremovescrew2,andthenfullyremovescrew1. b.Partiallyremovescrew3,thenfullyremovescrew4,andthenfullyremovescrew3. Liftandpullthethermalmoduletoremoveitfromthesystemboard.
Notes:
•Carefullyremovethefourscrewsfromthesystemboardtoavoidanypossibledamagetothesystem
board.Thefourscrewscannotberemovedfromthethermalmodule.
•Donottouchthethermalgreasewhilehandlingthethermalmodule.
Figure68.Removingthethermalmodule
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8.installthenewthermalmoduleintothechassisasshown.Ensurethatthefourscrewsonthenew thermalmodulearealignedwithcorrespondingholesinthesystemboard.
Figure69.Positioningthenewthermalmodule
9.Followtheclockwisesequenceof2,4,1,and3toinstallthefourscrewstosecurethenewthermal module.Donotover-tightenthescrews.
10.Reinstallthecoverpresenceswitch.See“Replacingthecoverpresenceswitch”onpage73.
11.Reinstalltheinternalspeaker.See“Replacingtheinternalspeaker”onpage71.
Whattodonext:
•Toworkwithanotherpieceofhardware,gototheappropriatesection.
•Tocompletetheinstallationorreplacement,goto“Completingthepartsreplacement”onpage82.

Replacingthemicroprocessor

Attention:
Donotopenyourcomputerorattemptanyrepairbeforereadingandunderstandingthe“Importantsafetyinformation” onpagev.
Thissectionprovidesinstructionsonhowtoreplacethemicroprocessor.
CAUTION:
Thethermalmodulemightbeveryhot.Beforeyouopenthecomputercover,turnoffthecomputer andwaitseveralminutesuntilthecomputeriscool.
Toreplacethemicroprocessor,dothefollowing:
1.T urnoffthecomputeranddisconnectallpowercordsfromelectricaloutlets.
2.Removethecomputercover.See“Removingthecomputercover”onpage57.
3.Removethethermalmodule.See“Replacingthethermalmodule”onpage77.
Note:Placethethermalmoduleonitssidesothatthethermalgreaseonthebottomofitdoesnot getincontactwithanything.
Chapter5.Installingorreplacinghardware79
4.Liftthesmallhandle1andopentheretainer2toaccessthemicroprocessor3.
Figure70.Accessingthemicroprocessor
5.Liftthemicroprocessorstraightupandoutofthemicroprocessorsocket.
Notes:
•Yourmicroprocessorandsocketmightlookdifferentfromtheoneillustrated.
•Touchonlytheedgesofthemicroprocessor.Donottouchthegoldcontactsonthebottom.
•Donotdropanythingontothemicroprocessorsocketwhileitisexposed.Thesocketpinsmustbe keptascleanaspossible.
Figure71.Removingthemicroprocessor
6.Ensurethatthesmallhandleisintheraisedpositionandthemicroprocessorretainerisfullyopen.
7.Removetheprotectivecoverthatprotectsthegoldcontactsofthenewmicroprocessor.
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8.Notetheorientationofthenewmicroprocessor.Holdthenewmicroprocessorbyitsedgesandalign thenotches
1onitwiththetabs2inthemicroprocessorsocket.Then,carefullylowerthenew
microprocessorstraightdownintothemicroprocessorsocket.
Note:Thesmalltriangle3ononecornerofthenewmicroprocessoristhemicroprocessororientation indicator.Thenewmicroprocessorisinthecorrectorientationwhenthisindicatorpointstothebeveled corner4ofthemicroprocessorsocket.
Figure72.Installingthemicroprocessor
9.Closethemicroprocessorretainerandlockitintopositionwiththesmallhandletosecurethenew microprocessorinthesocket.
10.Reinstallthethermalmodule.See“Replacingthethermalmodule”onpage77.
Whattodonext:
•Toworkwithanotherpieceofhardware,gototheappropriatesection.
•Tocompletethereplacement,goto“Completingthepartsreplacement”onpage82
.

Replacingthekeyboardormouse

Attention:
Donotopenyourcomputerorattemptanyrepairbeforereadingandunderstandingthe“Importantsafetyinformation” onpagev.
Thissectionprovidesinstructionsonhowtoreplacethekeyboardormouse.
Toreplacethekeyboardormouse,dothefollowing:
1.Disconnecttheoldkeyboardcableormousecablefromthecomputer.
Chapter5.Installingorreplacinghardware81
2.ConnectanewkeyboardormousetooneoftheUSBconnectorsonthecomputer.Dependingonwhere youwanttoconnectthenewkeyboardormouse,see“Locatingconnectors,controls,andindicatorson thefrontofyourcomputer”onpage8or“Locatingconnectorsontherearofyourcomputer”onpage10.
Figure73.ConnectingtheUSBkeyboardormouse
Whattodonext:
•Toworkwithanotherpieceofhardware,gototheappropriatesection.
•Tocompletetheinstallationorreplacement,goto“Completingthepartsreplacement”onpage82.

Completingthepartsreplacement

Aftercompletingtheinstallationorreplacementforallparts,youneedtoreinstallthecomputercoverand reconnectcables.Dependingonthepartsyouinstalledorreplaced,youmightneedtoconfirmtheupdated informationintheSetupUtilityprogram.RefertoChapter7“UsingtheSetupUtilityprogram”onpage93
.
Toreinstallthecomputercoverandreconnectcablestoyourcomputer,dothefollowing:
1.Ensurethatallcomponentshavebeenreassembledcorrectlyandthatnotoolsorloosescrewsareleft insideyourcomputer.See“Locatingcomponents”onpage12 inyourcomputer.
2.Beforereinstallingthecomputercover,ensurethatthecablesareroutedcorrectly.Keepcablesclearof thehingesandsidesofthecomputerchassistoavoidinterferencewithreinstallingthecomputercover.
forthelocationsofvariouscomponents
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3.Positionthecomputercoveronthechassisandthenpushthecovertotherearofthecomputeruntil itsnapsintoposition.
Figure74.Installingthecomputercover
Chapter5.Installingorreplacinghardware83
4.Installthescrewtosecurethecomputercover.
Figure75.Installingthecomputercoverscrew
5.IfthereisaKensington-stylecablelockavailable,lockthecomputer.See“AttachingaKensington-style cablelock”onpage32
6.Reconnecttheexternalcablesandpowercordstothecomputer.See“Locatingconnectorsonthe rearofyourcomputer”onpage10.
7.T oupdateyourconfiguration,refertoChapter7“UsingtheSetupUtilityprogram”onpage93.
.
Note:Inmostareasoftheworld,LenovorequiresthereturnofthedefectiveCustomerReplaceableUnit (CRU).InformationaboutthiswillcomewiththeCRUorwillcomeafewdaysaftertheCRUarrives.
Obtainingdevicedrivers
Youcanobtaindevicedriversthatarenotpreinstalledinyouroperatingsystemsat http://www.lenovo.com/support.Installationinstructionsareprovidedinreadmefileswiththedevice-driver files.
84ThinkCentreM73UserGuide

Chapter6.Recoveryinformation

ThischapterprovidesinformationabouttherecoverysolutionsprovidedbyLenovo.
•“RecoveryinformationfortheWindows7operatingsystem”onpage85
•“RecoveryinformationfortheWindows8orWindows8.1operatingsystem”onpage91

RecoveryinformationfortheWindows7operatingsystem

Thissectioncontainsthefollowingtopics:
•Creatingandusingrecoverymedia
•Performingbackupandrecoveryoperations
•UsingtheRescueandRecoveryworkspace
•Creatingandusingarescuemedium
•Installingorreinstallingdevicedrivers
•Solvingrecoveryproblems
Notes:
1.TherecoveryinformationinthischapteronlyappliestothecomputersthathavetheRescueand RecoveryprogramortheProductRecoveryprograminstalled.IftheEnhancedBackupandRestore iconintheLenovoThinkVantageToolsprogramisdimmed,itindicatesthatyouneedtoinstall theRescueandRecoveryprogrammanuallybeforeenablingitsfeatures.T oinstalltheRescueand Recoveryprogram,dothefollowing:
a.ClickStartAllProgramsLenovoThinkVantageTools,anddouble-clickEnhancedBackup
andRestore. b.Followtheinstructionsonthescreen. c.Whentheinstallationprocesscompletes,theEnhancedBackupandRestoreiconisactivated.
2.Thereareavarietyofmethodstochoosefromwhenconsideringhowtorecoverintheeventofa software-orhardware-relatedproblem.Somemethodsvarydependingonthetypeofoperatingsystem thatisinstalled.
3.Theproductontherecoverymediamaybeusedonlyforthefollowingpurposes:
•Restoretheproductpreinstalledonyourcomputer
•Reinstalltheproduct
•ModifytheproductusingtheAdditionalFiles

Creatingandusingrecoverymedia

Youcanuserecoverymediatorestoretheharddiskdrivetothefactorydefaultstate.Recoverymediaare usefulifyoutransferthecomputertoanotherarea,sellthecomputer,recyclethecomputer,orputthe computerinanoperationalstateafterallothermethodsofrecoveryhavefailed.Asaprecautionarymeasure, itisimportanttocreaterecoverymediaasearlyaspossible.
Note:Therecoveryoperationsyoucanperformusingrecoverymediavarydependingontheoperating systemfromwhichtherecoverymediawerecreated.Therecoverymediamightcontainabootmedium andadatamedium.YourMicrosoftWindowslicensepermitsyoutocreateonlyonedatamedium,soitis importantthatyoustoretherecoverymediainasafeplaceafteryouhavemadethem.
©CopyrightLenovo2013,2014
85
Creatingrecoverymedia
Thissectionprovidesinstructionsonhowtocreaterecoverymedia.
Note:OntheWindows7operatingsystem,youcancreaterecoverymediausingdiscsorexternalUSB storagedevices.
TocreaterecoverymediaontheWindows7operatingsystem,clickStartAllProgramsLenovo
ThinkVantageT ools➙FactoryRecoveryDisks.Then,followtheinstructionsonthescreen.
Usingrecoverymedia
Thissectionprovidesinstructionsonhowtouserecoverymedia.
OntheWindows7operatingsystem,youcanuserecoverymediatorestorethecontentsoftheharddisk drivetothefactorydefaultstate.Also,youcanuserecoverymediatoputthecomputerinanoperational stateafterallothermethodsofharddiskdriverecoveryhavefailed.
Attention:Whenyouuserecoverymediatorestorethecontentsoftheharddisktothefactorydefaultstate, allthefilescurrentlyontheharddiskdrivewillbedeletedandreplacedbythefactorydefaultfiles.
TouserecoverymediaontheWindows7operatingsystem,dothefollowing:
1.Dependingonthetypeofyourrecoverymedia,connectthebootmedium(memorykeyorotherUSB storagedevice)tothecomputer,orinsertthebootdiscintotheopticaldrive.
2.RepeatedlypressandreleasetheF12keywhenturningonthecomputer.WhenthePleaseselect bootdevicewindowopens,releasetheF12key.
3.SelectthedesiredstartupdeviceandpressEnter.Therestoreprocessbegins.
4.Followtheinstructionsonthescreentocompletetheoperation.
Note:Afterrestoringyourcomputerharddiskdrivetothefactorydefaultstate,youmighthavetoreinstall devicedriversforsomedevices.See“Reinstallingdevicedrivers”onpage90.

Performingbackupandrecoveryoperations

TheRescueandRecoveryprogramenablesyoutobackupallyourharddiskdrivecontentsincludingthe operatingsystem,datafiles,softwareprograms,andpersonalsettings.Youcandesignatewherethe RescueandRecoveryprogramstoresthebackup:
•Inaprotectedareaofyourharddiskdrive
•Onthesecondaryharddiskdriveifasecondaryharddiskdriveisinstalledinyourcomputer
•OnanattachedexternalUSBharddiskdrive
•Onanetworkdrive
•Onrecordablediscs(arecordableopticaldriveisrequiredforthisoption)
Afteryouhavebackedupthecontentsoftheharddiskdrive,youcanrestorethecompletecontentsofthe harddiskdrive,restoreselectedfilesonly,orrestoretheWindowsoperatingsystemandapplicationsonly whilekeepingtheotherdataonyourharddiskdrive.
Performingabackupoperation
ThissectionprovidesinstructionsonhowtoperformabackupoperationusingtheRescueandRecovery program.
ToperformabackupoperationusingtheRescueandRecoveryprogramontheWindows7operating system,dothefollowing:
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1.FromtheWindowsdesktop,clickStart➙AllPrograms➙LenovoThinkVantageTools➙Enhanced BackupandRestore.TheRescueandRecoveryprogramopens.
2.IntheRescueandRecoverymainwindow,clicktheLaunchadvancedRescueandRecoveryarrow.
3.ClickBackupyourharddriveandselectbackupoperationoptions.Then,followtheinstructionson thescreentocompletethebackupoperation.
Performingarecoveryoperation
ThissectionprovidesinstructionsonhowtoperformarecoveryoperationusingtheRescueandRecovery program.
ToperformarecoveryoperationusingtheRescueandRecoveryprogramontheWindows7operating system,dothefollowing:
1.FromtheWindowsdesktop,clickStartAllProgramsLenovoThinkVantageToolsEnhanced BackupandRestore.TheRescueandRecoveryprogramopens.
2.IntheRescueandRecoverymainwindow,clicktheLaunchadvancedRescueandRecoveryarrow.
3.ClicktheRestoreyoursystemfromabackupicon.
4.Followtheinstructionsonthescreentocompletetherecoveryoperation.
FormoreinformationaboutperformingarecoveryoperationfromtheRescueandRecoveryworkspace,see “UsingtheRescueandRecoveryworkspace”onpage87.

UsingtheRescueandRecoveryworkspace

TheRescueandRecoveryworkspaceresidesinaprotected,hiddenareaofyourharddiskdrivethat operatesindependentlyfromtheWindowsoperatingsystem.Thisenablesyoutoperformrecovery operationsevenifyoucannotstarttheWindowsoperatingsystem.Youcanperformthefollowingrecovery operationsfromtheRescueandRecoveryworkspace:
•Rescuefilesfromyourharddiskdriveorfromabackup:TheRescueandRecoveryworkspaceenables youtolocatefilesonyourharddiskdriveandtransferthemtoanetworkdriveorotherrecordablemedia, suchasaUSBdeviceoradisc.Thissolutionisavailableevenifyoudidnotbackupyourfilesorif changesweremadetothefilessinceyourlastbackupoperation.Y oucanalsorescueindividualfilesfrom aRescueandRecoverybackuplocatedonyourlocalharddiskdrive,aUSBdevice,oranetworkdrive.
•RestoreyourharddiskdrivefromaRescueandRecoverybackup:Ifyouhavebackedupyourharddisk driveusingtheRescueandRecoveryprogram,youcanrestoretheharddiskdrivefromaRescueand Recoverybackup,evenifyoucannotstarttheWindowsoperatingsystem.
•Restoreyourharddiskdrivetothefactorydefaultstate:TheRescueandRecoveryworkspaceenables youtorestorethecompletecontentsofyourharddiskdrivetothefactorydefaultstate.Ifyouhave multiplepartitionsonyourharddiskdrive,youhavetheoptiontorestoretheC:partitionandleavethe otherpartitionsintact.BecausetheRescueandRecoveryworkspaceoperatesindependentlyfrom theWindowsoperatingsystem,youcanrestoretheharddiskdrivetothefactorydefaultstateevenif youcannotstarttheWindowsoperatingsystem.
Attention:IfyourestoretheharddiskdrivefromaRescueandRecoverybackuporrestoretheharddisk drivetothefactorydefaultsettings,allfilesontheprimaryharddiskdrivepartition(usuallydriveC:)willbe deletedintherecoveryprocess.Ifpossible,makecopiesofimportantfiles.Ifyouareunabletostartthe Windowsoperatingsystem,youcanusetherescuefilesfeatureoftheRescueandRecoveryworkspaceto copyfilesfromyourharddiskdrivetoothermedia.
TostarttheRescueandRecoveryworkspace,dothefollowing:
1.Makesurethecomputeristurnedoff.
Chapter6.Recoveryinformation87
2.T urnonyourcomputer.Whenyouseethelogoscreen,pressEnter,andthenpressF11toenterthe RescueandRecoveryworkspace.
3.IfyouhavesetaRescueandRecoverypassword,typeyourpasswordwhenprompted.TheRescue andRecoveryworkspaceopensafterashortdelay.
Note:IftheRescueandRecoveryworkspacefailstoopen,see“Solvingrecoveryproblems”onpage90
4.Dooneofthefollowing:
•Torescuefilesfromyourharddiskdrive,clickRescuefilesandfollowtheinstructionsonthescreen.
•TorestoreyourharddiskdrivefromaRescueandRecoverybackuportorestoreyourharddiskdrive
tothefactorydefaultsettings,clickFullRestoreandfollowtheinstructionsonthescreen.
FormoreinformationaboutthefeaturesoftheRescueandRecoveryworkspace,clickHelp.
Note:Afterrestoringyourharddiskdrivetothefactorydefaultstate,youmighthavetoreinstalldevice driversforsomedevices.See“Reinstallingdevicedrivers”onpage90.

Creatingandusingarescuemedium

Witharescuemedium,suchasadiscoraUSBharddiskdrive,youcanrecoverthecomputerfromfailures thatpreventyoufromgainingaccesstotheRescueandRecoveryworkspaceonyourharddiskdrive.
Notes:
•Therecoveryoperationsyoucanperformusingarescuemediumvarydependingontheoperatingsystem.
•Therescuedisccanbestartedinalltypesofopticaldrives.
Creatingarescuemedium
Thissectionprovidesinstructionsonhowtocreatearescuemedium.
.
TocreatearescuemediumontheWindows7operatingsystem,dothefollowing:
1.FromtheWindowsdesktop,clickStartAllProgramsLenovoThinkVantageToolsEnhanced BackupandRestore.TheRescueandRecoveryprogramopens.
2.IntheRescueandRecoverymainwindow,clicktheLaunchadvancedRescueandRecoveryarrow.
3.ClicktheCreateRescueMediaicon.TheCreateRescueandRecoveryMediawindowopens.
4.IntheRescueMediaarea,selectthetypeoftherescuemediumyouwanttocreate.Youcancreatea rescuemediumusingadisc,aUSBharddiskdrive,orasecondaryinternalharddiskdrive.
5.ClickOKandfollowtheinstructionsonthescreentocreatearescuemedium.
Usingarescuemedium
Thissectionprovidesinstructionsonhowtousetherescuemediumyouhavecreated.
•Ifyouhavecreatedarescuemediumusingadisc,usethefollowinginstructionstousetherescuemedium:
1.T urnoffyourcomputer.
2.RepeatedlypressandreleasetheF12keywhenturningonthecomputer.WhenthePleaseselect bootdevicewindowopens,releasetheF12key.
3.InthePleaseselectbootdevicewindow,selectthedesiredopticaldriveasthefirstbootdevice. Then,inserttherescuediscintotheopticaldriveandpressEnter.Therescuemediumstarts.
•IfyouhavecreatedarescuemediumusingaUSBharddiskdrive,usethefollowinginstructionsto usetherescuemedium:
1.AttachtheUSBharddiskdrivetooneoftheUSBconnectorsonyourcomputer.
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