Lenovo M79 + ThinkVision LT2252p User guide

ThinkCentreM79

UserGuide

MachineTypes:10CN,10CQ,10CR,and10CS

Note:Beforeusingthisinformationandtheproductitsupports,besuretoreadandunderstandthe“Read

thisﬁrst:Importantsafetyinformation”onpagev

andAppendixF“Notices”onpage131.

FirstEdition(July2014)

©CopyrightLenovo2014.

LIMITEDANDRESTRICTEDRIGHTSNOTICE:IfdataorsoftwareisdeliveredpursuantaGeneralServicesAdministration

“GSA”contract,use,reproduction,ordisclosureissubjecttorestrictionssetforthinContractNo.GS-35F-05925.

Contents

Readthisﬁrst:Importantsafety

information...............v

Beforeusingthismanual............v

Serviceandupgrades.............v

Staticelectricityprevention...........vi

Powercordsandpoweradapters........vi

Extensioncordsandrelateddevices.......vi

Plugsandoutlets..............vii

Externaldevices..............vii

Heatandproductventilation.........vii

Operatingenvironment...........viii

Lasercompliancestatement.........viii

Powersupplystatement............ix

Cleaningandmaintenance...........ix

Chapter1.Productoverview......1

Locations..................1

Locatingconnectors,controls,andindicators

onthefrontofyourcomputer........2

Locatingconnectorsontherearofyour

computer................3

Locatingcomponents...........5

Locatingpartsonthesystemboard.....6

Locatinginternaldrives..........7

Locatingthemachinetypeandmodellabel..8

Features..................8

Speciﬁcations...............12

Lenovoprograms.............12

AccessingLenovoprogramsontheWindows

7operatingsystem...........12

AccessingLenovoprogramsontheWindows

8.1operatingsystem..........13

AnintroductiontoLenovoprograms....14

Chapter2.Usingyourcomputer...17

Registeringyourcomputer..........17

Usingkeyboardshortcuts..........17

Usingtheﬁngerprintreader..........18

Usingthewheelmouse...........18

Managingpower..............18

Advancedconﬁgurationandpowerinterface

(ACPI)BIOS..............19

AutomaticPower-onfeatures.......19

Settingthecomputervolume.........19

Settingthevolumefromthedesktop....19

SettingthevolumefromControlPanel...20

Usingadisc................20

Usingtheopticaldrive..........20

Handlingandstoringadisc........21

Playingandremovingadisc.......21

Recordingadisc............21

Usingthesingle-touchormulti-touchfeature...22

NavigatingamongscreensontheWindows8.1

operatingsystem..............22

AccessingControlPanelontheWindows8.1

operatingsystem..............23

Frequentlyaskedquestions.........24

Chapter3.Youandyourcomputer..25

Accessibilityandcomfort..........25

Arrangingyourworkspace........25

Comfort...............25

Glareandlighting............26

Aircirculation.............26

Electricaloutletsandcablelengths.....26

Accessibilityinformation.........26

Movingyourcomputertoanothercountryor

region..................30

Chapter4.Security..........31

Securityfeatures..............31

Lockingthecomputercover.........31

AttachingaKensington-stylecablelock.....33

Attachingacablelock............34

Usingpasswords..............34

BIOSpasswords............34

Windowspasswords..........35

Conﬁguringtheﬁngerprintreader.......35

Usingandunderstandingﬁrewalls.......35

Protectingdataagainstviruses........35

Chapter5.Advancedconﬁguration..37

UsingtheSetupUtilityprogram........37

StartingtheSetupUtilityprogram.....37

Viewingandchangingsettings......37

UsingBIOSpasswords.........38

Enablingordisablingadevice.......39

Selectingastartupdevice........40

EnablingErPLPScompliancemode....40

ICEperformancemode.........41

ICEthermalalert............41

ExitingtheSetupUtilityprogram......42

UpdatingorrecoveringtheBIOS.......42

BIOSlevels..............42

Usingsystemprograms.........42

©CopyrightLenovo2014

i

ChangingtheBIOSsettingsbeforeinstallinga

newoperatingsystem..........43

UpdatingtheBIOSfromadisc......43

UpdatingtheBIOSfromyouroperating

system................44

RecoveringfromaBIOSupdatefailure...44

Chapter6.Preventingproblems...47

Keepingyourcomputercurrent........47

Gettingthelatestdevicedriversforyour

computer...............47

Updatingyouroperatingsystem......47

UsingtheSystemUpdateprogram.....48

Cleaningandmaintenance..........48

Basics................48

Cleaningyourcomputer.........48

Goodmaintenancepractices.......49

Movingyourcomputer...........50

Chapter7.Troubleshootingand

diagnostics..............51

Basictroubleshooting............51

Troubleshootingprocedure..........52

Troubleshooting..............52

Audioproblems............53

CDproblems.............53

DVDproblems.............54

Intermittentproblems..........55

Harddiskdriveproblems.........55

Problemswiththekeyboardormouse...56

Monitorproblems............57

Networkingproblems..........58

Ihaveconnectedanoptiontomycomputer,

butitdoesnotwork...........60

Performanceandlockupproblems.....60

Theprinterdoesnotwork........61

Serialconnectorcannotbeaccessed....61

Softwareproblems...........61

MyUSBconnectorscannotbeaccessed..62

Diagnostics................62

LenovoSolutionCenter.........62

Chapter8.Recoveryinformation...65

RecoveryinformationfortheWindows7operating

system..................65

Creatingandusingrecoverymedia.....65

Performingbackupandrecoveryoperations.66

Creatingandusingarescuemedium....68

Reinstallingprogramsanddevicedrivers..68

Solvingrecoveryproblems........70

RecoveryinformationfortheWindows8.1

operatingsystem..............70

Refreshingyourcomputer........70

Resettingyourcomputertothefactory-default

settings................70

Usingtheadvancedstartupoptions....71

RecoveringyouroperatingsystemifWindows

8.1failstostart.............71

Chapter9.Installingorreplacing

hardware...............73

Handlingstatic-sensitivedevices.......73

Installingorreplacinghardware........73

Installingexternaloptions........73

Removingthecomputercover.......73

Removingandreinstallingthefrontbezel..74

InstallingorreplacingaPCIcard......76

Installingorreplacingamemorymodule...78

Installingorreplacingtheopticaldrive...80

Replacingtheslimcardreader......82

Replacingthebattery..........85

Replacingtheheatsinkandfanassembly..86

Replacingthepowersupplyassembly...88

Replacingthemicroprocessor.......89

Replacingtheharddiskdrive.......91

Installingthesolid-statedrive.......93

Replacingtherearfanassembly......94

ReplacingthefrontaudioandUSB

assembly...............96

Replacingthethermalsensor.......97

Replacingthecoverpresenceswitch....99

InstallingorremovingthefrontWi-Fi

antenna...............101

InstallingorremovingtherearWi-Fi

antenna...............103

ReplacingtheWi-Fiunits.........104

Replacingthekeyboardormouse.....109

Completingthepartsreplacement.....110

Chapter10.Gettinginformation,help,

andservice.............113

Informationresources............113

LenovoThinkVantageTools........113

HelpandSupport............113

SafetyandWarranty...........113

LenovoWebsite............113

LenovoSupportWebsite.........114

Helpandservice..............114

Usingthedocumentationanddiagnostic

program...............114

Callingforservice............114

Usingotherservices..........115

Purchasingadditionalservices......115

iiThinkCentreM79UserGuide

AppendixA.Regulatory

information.............117

Exportclassiﬁcationnotice..........117

Electronicemissionsnotices.........117

FederalCommunicationsCommission

DeclarationofConformity........117

Eurasiancompliancemark..........119

Brazilregulatorynotice...........119

Mexicoregulatorynotice...........119

Additionalregulatoryinformation.......119

AppendixB.WEEEandrecycling

information.............121

ImportantWEEEinformation.........121

RecyclinginformationforJapan........121

RecyclinginformationforBrazil........122

BatteryrecyclinginformationforTaiwan.....122

BatteryrecyclinginformationfortheEuropean

Union..................122

AppendixC.RestrictionofHazardous

SubstancesDirective(RoHS)....125

EuropeanUnionRoHS...........125

ChinaRoHS................125

TurkishRoHS...............125

UkraineRoHS...............126

IndiaRoHS................126

AppendixD.ChinaEnergyLabel..127

AppendixE.ENERGYSTARmodel

information.............129

AppendixF .Notices.........131

Trademarks................132

Index.................133

©CopyrightLenovo2014

iii

ivThinkCentreM79UserGuide

Readthisﬁrst:Importantsafetyinformation

Thischaptercontainsthesafetyinformationthatyoumustbefamiliarwith.

Beforeusingthismanual

CAUTION:

Beforeusingthismanual,besuretoreadandunderstandalltherelatedsafetyinformationforthis

product.RefertotheinformationinthissectionandthesafetyinformationintheSafety,Warranty,and

SetupGuidethatyoureceivedwiththisproduct.Readingandunderstandingthissafetyinformation

reducestheriskofpersonalinjuryanddamagetoyourproduct.

IfyounolongerhaveacopyoftheSafety,Warranty,andSetupGuide,youcanobtainaPortableDocument

Format(PDF)versionfromtheLenovo

®

SupportWebsiteathttp://www.lenovo.com/UserManuals.The

LenovoSupportWebsitealsoprovidestheSafety,Warranty,andSetupGuideandthisUserGuidein

additionallanguages.

Serviceandupgrades

DonotattempttoserviceaproductyourselfunlessinstructedtodosobytheCustomerSupportCenteror

yourdocumentation.OnlyuseaServiceProviderwhoisapprovedtorepairyourparticularproduct.

Note:Somecomputerpartscanbeupgradedorreplacedbythecustomer.Upgradestypicallyare

referredtoasoptions.ReplacementpartsapprovedforcustomerinstallationarereferredtoasCustomer

ReplaceableUnits,orCRUs.Lenovoprovidesdocumentationwithinstructionswhenitisappropriatefor

customerstoinstalloptionsorreplaceCRUs.Youmustcloselyfollowallinstructionswheninstallingor

replacingparts.TheOffstateofapowerindicatordoesnotnecessarilymeanthatvoltagelevelsinsidea

productarezero.Beforeyouremovethecoversfromaproductequippedwithapowercord,alwaysensure

thatthepoweristurnedoffandthattheproductisunpluggedfromanypowersource.Formoreinformation

onCRUs,refertoChapter9“Installingorreplacinghardware”onpage73

.Ifyouhaveanyquestionsor

concerns,contacttheCustomerSupportCenter.

Althoughtherearenomovingpartsinyourcomputerafterthepowercordhasbeendisconnected,the

followingwarningsarerequiredforyoursafety.

CAUTION:

Hazardousmovingparts.Keepﬁngersandotherbodypartsaway.

CAUTION:

BeforereplacinganyCRUs,turnoffthecomputerandwaitthreetoﬁveminutestoletthecomputer

coolbeforeopeningthecover.

©CopyrightLenovo2014

v

Staticelectricityprevention

Staticelectricity,althoughharmlesstoyou,canseriouslydamagecomputercomponentsandoptions.

Improperhandlingofstatic-sensitivepartscancausedamagetothepart.Whenyouunpackanoption

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

2

,orbetter.For

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.

Extensioncordsandrelateddevices

Ensurethatextensioncords,surgeprotectors,uninterruptiblepowersupplies,andpowerstripsthatyouuse

areratedtohandletheelectricalrequirementsoftheproduct.Neveroverloadthesedevices.Ifpowerstrips

viThinkCentreM79UserGuide

areused,theloadshouldnotexceedthepowerstripinputrating.Consultanelectricianformoreinformation

ifyouhavequestionsaboutpowerloads,powerrequirements,andinputratings.

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)cableswhile

thecomputerpowerison;otherwise,youmightdamageyourcomputer.Toavoidpossibledamageto

attacheddevices,waitatleastﬁvesecondsafterthecomputerisshutdowntodisconnectexternaldevices.

Heatandproductventilation

Computers,poweradapters,andmanyaccessoriescangenerateheatwhenturnedonandwhenbatteries

arecharging.Alwaysfollowthesebasicprecautions:

•Donotleaveyourcomputer,poweradapter,oraccessoriesincontactwithyourlaporanypartofyour

bodyforanextendedperiodwhentheproductsarefunctioningorwhenthebatteryischarging.Your

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

©CopyrightLenovo2014

vii

yourcomputerwithintwofeetofhigh-trafﬁcareas.Ifyoumustoperateyourcomputerinornearahigh-trafﬁc

area,inspectand,ifnecessary,cleanyourcomputermorefrequently.

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.

viiiThinkCentreM79UserGuide

DANGER

SomelaserproductscontainanembeddedClass3AorClass3Blaserdiode.Notethefollowing:

Laserradiationwhenopen.Donotstareintothebeam,donotviewdirectlywithoptical

instruments,andavoiddirectexposuretothebeam.

Powersupplystatement

Neverremovethecoveronapowersupplyoranypartthathasthefollowinglabelattached.

Hazardousvoltage,current,andenergylevelsarepresentinsideanycomponentthathasthislabelattached.

Therearenoserviceablepartsinsidethesecomponents.Ifyoususpectaproblemwithoneoftheseparts,

contactaservicetechnician.

Cleaningandmaintenance

Keepyourcomputerandworkspaceclean.Shutdownthecomputerandthendisconnectthepower

cordbeforecleaningthecomputer.Donotsprayanyliquiddetergentdirectlyonthecomputeroruse

anydetergentcontainingﬂammablematerialtocleanthecomputer.Spraythedetergentonasoftcloth

andthenwipethecomputersurfaces.

©CopyrightLenovo2014

ix

xThinkCentreM79UserGuide

Chapter1.Productoverview

Thischapterprovidesthefollowinginformation:

•Locationsofconnectors

•Locationsofcomponents

•Locationsofpartsonthesystemboard

•Locationsofinternaldrives

•Computerfeatures

•SoftwareprogramsprovidedbyLenovo

Locations

Thissectionprovidesthefollowingtopics:

•“Locatingconnectors,controls,andindicatorsonthefrontofyourcomputer”onpage2

•“Locatingconnectorsontherearofyourcomputer”onpage3

•“Locatingcomponents”onpage5

•“Locatingpartsonthesystemboard”onpage6

•“Locatinginternaldrives”onpage7

•“Locatingthemachinetypeandmodellabel”onpage8

Note:Thecomponentsinyourcomputermightlookslightlydifferentfromtheillustrations.

©CopyrightLenovo2014

1

Locatingconnectors,controls,andindicatorsonthefrontofyour

computer

Thefollowingillustrationshowsthelocationsoftheconnectors,controls,andindicatorsonthefrontofyour

computer.

Figure1.Frontconnector,control,andindicatorlocations

1Harddiskdriveactivityindicator2Powerindicator

3Powerbutton

4Opticaldriveeject/closebutton

5USB2.0connector

6Microphoneconnector

7Headphoneconnector

8USB2.0connector

2ThinkCentreM79UserGuide

Locatingconnectorsontherearofyourcomputer

Thefollowingillustrationshowsthelocationsoftheconnectorsontherearofyourcomputer.Some

connectorsontherearofyourcomputerarecolor-codedtohelpyoudeterminewheretoconnectthe

cablesonyourcomputer.

Figure2.Rearconnectorlocations

1Power-cordconnector

2PS/2mouseconnector(availableonsomemodels)

3PS/2keyboardconnector(availableonsomemodels)

4DisplayPort

®

connector

5VGAconnector6USB3.0connectors(2)

7USB2.0connectors(2)

8Microphoneconnector

9Audioline-outconnector10Audioline-inconnector

11PCI/PCI-Expresscardarea(differentcardsprovide

differentconnectors)

12Serial(COM2)connector(availableonsomemodels)

13Cable-lockslots(2)(availableonsomemodels)14Security-lockslot

15Padlockloop16Ethernetconnector

17Serialconnector

Note:Adiscretegraphicscard,anetworkinterfacecard,oranaudiocardcanbeinstalledintheappropriate

PCIorPCIExpresscardslot.Ifsuchacardisinstalled,ensurethatyouusetheconnectorsonthecard

insteadofthecorrespondingconnectorsonthecomputer.

Chapter1.Productoverview3

ConnectorDescription

Audioline-inconnector

Usedtoreceiveaudiosignalsfromanexternalaudiodevice,suchasastereo

system.Whenyouattachanexternalaudiodevice,acableisconnectedbetween

theaudioline-outconnectorofthedeviceandtheaudioline-inconnectorofthe

computer.

Audioline-outconnector

Usedtosendaudiosignalsfromthecomputertoexternaldevices,suchaspowered

stereospeakers(speakerswithbuilt-inampliﬁers),headphones,multimedia

keyboards,ortheaudioline-inconnectoronastereosystemorotherexternal

recordingdevice.

DisplayPortconnector

Usedtoattachahigh-performancemonitor,adirect-drivemonitor,orotherdevices

thatuseaDisplayPortconnector.

Ethernetconnector

UsedtoattachanEthernetcableforalocalareanetwork(LAN).

Note:TooperatethecomputerwithinFCCClassBlimits,useaCategory5Ethernet

cable.

Microphoneconnector

Usedtoattachamicrophonetoyourcomputerwhenyouwanttorecordsoundorif

youusespeech-recognitionsoftware.

PS/2keyboardconnector

(optional)

UsedtoattachakeyboardthatusesaPersonalSystem/2(PS/2)keyboard

connector.

PS/2mouseconnector

(optional)

Usedtoattachamouse,atrackball,orotherpointingdevicesthatuseaPS/2

mouseconnector.

Serialconnector

Usedtoattachanexternalmodem,aserialprinter,orotherdevicesthatusea

9-pinserialconnector.

USBconnectorUsedtoattachadevicethatrequiresaUSBconnector,suchasaUSBkeyboard,a

USBmouse,aUSBscanner,oraUSBprinter.IfyouhavemorethaneightUSB

devices,youcanpurchaseaUSBhub,whichyoucanusetoconnectadditional

USBdevices.

VGAconnectorUsedtoattachaVGAmonitororotherdevicesthatuseaVideoGraphicsArray

(VGA)connector.

4ThinkCentreM79UserGuide

Locatingcomponents

Thefollowingillustrationshowsthelocationsofthevariouscomponentsinyourcomputer.Toremovethe

computercover,see“Removingthecomputercover”onpage73.

Figure3.Componentlocations

1Heatsinkandfanassembly

2Microprocessor

3Memorymodules4Frontbezel

5Opticaldrive6Slimcardreader(availableonsomemodels)

7FrontaudioandUSBassembly

8Thermalsensor

9Harddiskdriveorsolid-statedrive

10PCIExpresscard

11Systemboard12Coverpresenceswitch(Intrusionswitch)(availableonsome

models)

13Rearfanassembly

14Powersupplyassembly

Chapter1.Productoverview5

Locatingpartsonthesystemboard

Thefollowingillustrationshowsthelocationsofthepartsonthesystemboard.

Figure4.Systemboardpartlocations

14-pinpowerconnector

2Microprocessorfanconnector

3Memoryslot1(DIMM1)4Memoryslot2(DIMM2)

5Memoryslot3(DIMM3)6Memoryslot4(DIMM4)

7Thermalsensorconnector

8Harddiskdrivefanconnector

94-pinpowerconnectors(2)

1014-pinpowerconnector

11Powerfanconnector

12Parallelconnector

13SATA3.0connectors(2)14SATA3.0connector

15Frontpanelconnector(forconnectingLED

indicatorsandpowerbutton)

16FrontUSB2.0connector1(forconnectingUSBconnectors

1and2onthefrontbezel)

17FrontUSB2.0connector2(forconnectingan

additionalUSBdevice)

18ClearCMOS(ComplementaryMetalOxideSemiconductor)

/Recoveryjumper

19Serialconnector

20Battery

21Frontaudioconnector

22PCIcardslot

23PCIExpressx1cardslots(2)24PCIExpressx16graphicscardslot

25Systemfanconnector

26DisplayPortconnector

27Microprocessor

6ThinkCentreM79UserGuide

Locatinginternaldrives

Internaldrivesaredevicesthatyourcomputerusestoreadandstoredata.Youcanadddrivestoyour

computertoincreasestoragecapacityandenableyourcomputertoreadothertypesofmedia.Internal

drivesareinstalledinbays.

Whenyouinstallorreplaceaninternaldrive,notethetypeandsizeofthedrivethateachbaysupportsand

correctlyconnecttherequiredcables.Refertotheappropriatesectionin“Installingorreplacinghardware”

onpage73

forinstructionsonhowtoinstallorreplaceinternaldrivesforyourcomputer.

Thefollowingillustrationshowsthelocationsofthedrivebays.

Figure5.Drive-baylocations

1Optical-drivebay(withanopticaldriveinstalledonsomemodels)

2Card-readerdrivebay(withaslimcardreaderinstalledonsomemodels)

3Primaryharddiskdrivebay(witha3.5-inchharddiskdriveora2.5-inchsolid-statedriveinstalled)

4Secondaryharddiskdrivebay(witha3.5-inchharddiskdriveora2.5-inchsolid-statedriveinstalledonsome

models)

Chapter1.Productoverview7

Locatingthemachinetypeandmodellabel

Themachinetypeandmodellabelidentiﬁesyourcomputer.WhenyoucontactLenovoforhelp,themachine

typeandmodelinformationhelpssupporttechnicianstoidentifyyourcomputerandprovidefasterservice.

Themachinetypeandmodellabelisattachedonthebottomofyourcomputerasshown.

Machine Type: XXXX

Model Number: XXX

Figure6.Machinetypeandmodellabel

Features

Thissectionintroducesthecomputerfeatures.Theinformationcoversavarietyofmodels.

Microprocessor

Toviewthemicroprocessorinformationofyourcomputer,dothefollowing:

•OntheMicrosoft

®

Windows

®

7operationsystem,clickStart,right-clickComputer,andselectProperties

toviewtheinformation.

•OntheMicrosoftWindows8.1operatingsystem,gotothedesktopandmoveyourpointertothe

top-rightorbottom-rightcornerofthescreentodisplaythecharms.ThenclickSettings➙PCinfoto

viewtheinformation.

Memory

Yourcomputersupportsuptofourdoubledatarate3unbuffereddualinlinememorymodules(DDR3DIMMs).

Todeterminetheamountofmemoryinstalledonyourcomputer,dothefollowing:

•OntheMicrosoftWindows7operationsystem,clickStart,right-clickComputer,andselectProperties

toviewtheinformation.

8ThinkCentreM79UserGuide

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