Lenovo 7844B4U User manual

Brand: Lenovo

Model: 7844B4U

Category: Software manuals

Type: User manual

This manual is also suitable for

ThinkCentre

UserGuide

MachineTypes:3120,3122,3126,and3128

Note:Beforeusingthisinformationandtheproductitsupports,besuretoreadandunderstandthe

ThinkCentreSafetyandWarrantyGuideandAppendixA“Notices”onpage79.

SecondEdition(December2011)

©CopyrightLenovo2011.

LIMITEDANDRESTRICTEDRIGHTSNOTICE:IfdataorsoftwareisdeliveredpursuantaGeneralServicesAdministration

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

Contents

Importantsafetyinformation.....iii

Chapter1.Productoverview......1

Features..................1

Specications................4

Softwareoverview..............4

SoftwareprovidedwithyourWindows

operatingsystem.............4

Locations..................6

Locatingconnectors,controls,andindicators

onthefrontofyourcomputer........7

Locatingconnectorsandpartsontherearof

yourcomputer..............7

Locatingcomponents..........10

Locatingpartsonthesystemboard....10

Locatinginternaldrives.........11

Chapter2.Installingorreplacing

hardware...............13

Handlingstatic-sensitivedevices.......13

Installingorreplacinghardware........13

Installingexternaloptions........14

Openingthecomputercover.......14

Removingandreinstallingthefrontbezel..15

Accessingthesystemboardcomponentsand

drives................16

Installingorreplacingamemorymodule...17

InstallingorreplacingaPCIcard......18

Installingorreplacingthecardreader....21

Replacingthebattery..........26

Replacingtheharddiskdrive.......27

Replacingtheopticaldrive........30

Replacingtheheatsinkandfanassembly..33

Replacingthepowersupplyassembly...36

Replacingthemicroprocessor.......41

Replacingtheinternalspeaker.......44

ReplacingthefrontaudioandUSB

assembly...............49

Replacingthekeyboard.........51

Replacingthemouse..........51

Completingthepartsreplacement.....52

Obtainingdevicedrivers...........53

Basicsecurityfeatures...........53

Integratedcablelock..........53

Passwordprotection..........53

Erasingalostorforgottenpassword(clearing

CMOS)................54

Chapter3.Recoveryinformation...55

Creatingandusingrecoverymedia......55

Creatingrecoverymedia.........55

Usingrecoverymedia..........56

Performingbackupandrecoveryoperations...56

Performingabackupoperation......56

Performingarecoveryoperation......57

UsingtheRescueandRecoveryworkspace...57

Creatingandusingarescuemedium......58

Creatingarescuemedium........58

Usingarescuemedium.........58

Installingorreinstallingdevicedrivers.....59

Solvingrecoveryproblems..........59

Chapter4.UsingtheSetupUtility

program................61

StartingtheSetupUtilityprogram.......61

Viewingorchangingsettings.........61

Usingpasswords..............61

Passwordconsiderations.........62

Power-onpassword...........62

Administratorpassword.........62

Setting,changing,ordeletingapassword..62

Enablingordisablingadevice........62

Selectingastartupdevice..........63

Selectingatemporarystartupdevice....63

Viewingorchangingthestartupdevice

sequence...............63

ExitingtheSetupUtilityprogram.......64

Chapter5.Updatingsystem

programs...............65

Usingsystemprograms...........65

Updating(ashing)theBIOSfromadisc....65

Updating(ashing)theBIOSfromyouroperating

system..................66

RecoveringfromaPOSTandBIOSupdate

failure..................66

Chapter6.Troubleshootingand

diagnosticprograms.........69

Basictroubleshooting............69

Diagnosticprograms............70

LenovoSolutionCenter.........70

LenovoThinkVantageToolbox.......71

PC-DoctorforDOS...........71

Cleaningthemouse............72

©CopyrightLenovo2011

Opticalmouse.............72

Non-opticalmouse...........72

Chapter7.Gettinginformation,help,

andservice..............75

Informationresources............75

OnlineBooksfolder...........75

LenovoThinkVantageTools........75

LenovoWelcome............76

AccessHelp..............76

Safetyandwarranty...........76

LenovoWebsite(http://www.lenovo.com)..76

LenovoSupportWebsite.........76

Helpandservice..............77

Usingthedocumentationanddiagnostic

programs...............77

Callingforservice............77

Usingotherservices..........78

Purchasingadditionalservices......78

AppendixA.Notices..........79

Televisionoutputnotice...........80

EuropeanconformanceCEmark.......80

RecyclinginformationforBrazil........80

BatteryrecyclinginformationforTaiwan.....80

BatteryrecyclinginformationfortheEuropean

Union..................80

Trademarks................81

Index..................83

iiThinkCentreUserGuide

Importantsafetyinformation

CAUTION:

Beforeusingthismanual,besuretoreadandunderstandalltherelatedsafetyinformationforthis

product.RefertotheThinkCentreSafetyandWarrantyGuidethatyoureceivedwiththisproductfor

thelatestsafetyinformation.Readingandunderstandingthissafetyinformationreducestheriskof

personalinjuryandordamagetoyourproduct.

IfyounolongerhaveacopyoftheThinkCentreSafetyandWarrantyGuide,youcanobtainaPortable

DocumentFormat(PDF)versionfromtheLenovo

SupportWebsiteat:

http://www.lenovo.com/support

©CopyrightLenovo2011

iii

ivThinkCentreUserGuide

Chapter1.Productoverview

Thischapterprovidesinformationaboutthecomputerfeatures,specications,softwareprogramsprovided

byLenovo,andlocationsofconnectors,components,partsonthesystemboard,andinternaldrives.

Thischaptercontainsthefollowingtopics:

•“Features”onpage1

:Thissectionprovidesinformationaboutthecomputerfeatures.

•“Specications”onpage4

:Thissectionliststhephysicalspecicationsforyourcomputer.

•“Softwareoverview”onpage4:Thissectionprovidesinformationaboutthesoftwareprogramsprovided

withyourcomputer.

•“Locations”onpage6:Thissectionprovidesinformationtohelpyoulocateyourcomputerconnectors,

components,partsonthesystemboard,andinternaldrives.

Features

Thissectionprovidesinformationaboutthecomputerfeatures.

Systeminformation

Thefollowinginformationcoversavarietyofmodels.Forinformationaboutyourspecicmodel,usethe

SetupUtilityprogram.SeeChapter4“UsingtheSetupUtilityprogram”onpage61

Microprocessor

Yourcomputercomeswithoneofthefollowingmicroprocessors(internalcachesizevariesbymodeltype):

•AMD

Athlon™IImicroprocessor

•AMDPhenom™IImicroprocessor

•AMDSempron™microprocessor

Memorymodule(s)

Yourcomputersupportsuptofourdoubledatarate3dualinlinememorymodules(DDR3DIMMs).

Internaldrives

•Cardreader(availableinsomemodels)

•Opticaldrive:DVD-ROMorDVD-R(optional)

•SerialAdvancedT echnologyAttachment(SATA)harddiskdrive

Videosubsystem

•IntegratedgraphicscardfunctioningthroughaVideoGraphicsArray(VGA)connectororaDigitalVisual

Interface(DVI)connector

•PeripheralComponentInterconnect(PCI)Expressx16graphicscardslotonthesystemboardfora

discretegraphicscard

Audiosubsystem

•Integratedhigh-denition(HD)audio

•Headphoneconnectorandmicrophoneconnectoronthefrontpanel

©CopyrightLenovo2011

•Audioline-inconnector,audioline-outconnector,andmicrophoneconnectorontherearpanel

•Internalspeaker(availableinsomemodels)

Connectivity

10/100/1000MbpsintegratedEthernetcontroller

Systemmanagementfeatures

•Abilitytostorethepower-onself-test(POST)hardwaretestresults

•AdvancedCongurationandPowerInterface(ACPI)

•Automaticpower-onstartup

•DesktopManagementInterface(DMI)

•PrebootExecutionEnvironment(PXE)

•SystemManagement(SM)BasicInput/OutputSystem(BIOS)andSMsoftware

•WakeonLAN(WOL)

•WindowsManagementInstrumentation(WMI)(WMIistheinfrastructureformanagementdataand

operationsonWindowsoperatingsystems.)

Input/Output(I/O)features

•9-pinserialport(onestandardandoneoptional)

•25-pinparallelport(optionalthroughyourPCIcardinsomemodels)

•Ethernetconnector

•PS/2keyboardconnector

•PS/2mouseconnector

•SixUniversalSerialBus(USB)2.0connectors(twoonthefrontpanelandfourontherearpanel;there

mightalsobetwooptionalUSBconnectorsontherearpanel)

•Twoaudioconnectorsonthefrontpanel(headphoneconnectorandmicrophoneconnector)

•Threeaudioconnectorsontherearpanel(audioline-inconnector,audioline-outconnector,and

microphoneconnector)

•VGAmonitorconnectorandDVImonitorconnector

Formoreinformation,referto“Locatingconnectors,controls,andindicatorsonthefrontofyourcomputer”

onpage7

and“Locatingconnectorsandpartsontherearofyourcomputer”onpage7.

Expansion

•Oneharddiskdrivebay

•Oneopticaldrivebay

•Oneslimcardreaderdrivebay

•OnePCIcardslot

•OnePCIExpressx16graphicscardslot

•TwoPCIExpressx1cardslots

Powersupply

Yourcomputercomeswiththe240-wattautomaticvoltage-sensingpowersupply.

Securityfeatures

2ThinkCentreUserGuide

•Apower-onpasswordandanadministratorpasswordtodeterunauthorizeduseofyourcomputer

•Computrace

•Coverpresenceswitch(alsocalledintrusionswitch)(availableinsomemodels)

•EnablingordisablingSATAdevices

•Enablingordisablingtheserialport

•EnablingordisablingUSBconnectors

•Keyboardwithngerprintreader(shippedwithsomemodels)

•Startupsequencecontrol

•Startupwithoutkeyboardormouse

•Supportfortheadditionofanintegratedcablelock(Kensingtonlock.See“Integratedcablelock”on

page53

formoreinformation.)

Preinstalledsoftwareprograms

Yourcomputerispreinstalledwithsomesoftwareprogramstohelpyouworkmoreeasilyandsecurely.For

moreinformation,see“Softwareoverview”onpage4.

Preinstalledoperatingsystem

YourcomputerispreinstalledwiththeMicrosoft

Windows

7operatingsystem.

Operatingsystem(s),certiedortestedforcompatibility

(variesbymodeltype)

•Linux

1.Theoperatingsystem(s)listedherearebeingcertiedortestedforcompatibilityatthetimethispublicationgoesto

press.AdditionaloperatingsystemsmightbeidentiedbyLenovoascompatiblewithyourcomputerfollowingthe

publicationofthismanual.Thislistissubjecttochange.Todetermineifanoperatingsystemhasbeencertiedor

testedforcompatibility,checktheWebsiteoftheoperatingsystemvendor.

Chapter1.Productoverview3

Specications

Thissectionliststhephysicalspecicationsforyourcomputer.

Dimensions

Width:334mm(13.15inches)

Height:97mm(3.8inches)

Depth:369mm(14.53inches)

Weight

Maximumcongurationasshipped:7.5kg(16.53lb)

Environment

•Airtemperature:

Operating:10°Cto35°C(50°Fto95°F)

Non-operating:-40°Cto60°C(-40°Fto140°F)

Non-operating:-10°Cto60°C(14°Fto140°F)(withoutpackage)

•Humidity:

Operating:20%to80%(non-condensing)

Non-operating:20%to90%(non-condensing)

•Altitude:

Operating:-50to10000ft(-15.2to3048m)

Non-operating:-50to35000ft(-15.2to10668m)

Electricalinput

•Inputvoltage:

–Lowrange:

Minimum:100Vac

Maximum:127Vac

Inputfrequencyrange:50to60Hz

–Highrange:

Minimum:200Vac

Maximum:240Vac

Inputfrequencyrange:50to60Hz

Softwareoverview

Thecomputercomeswithapreinstalledoperatingsystemandseveralsoftwareprogramsprovidedby

Lenovo.

SoftwareprovidedwithyourWindowsoperatingsystem

ThissectionprovidesinformationaboutthesoftwareprovidedwithyourWindowsoperatingsystem.

SoftwareprovidedbyLenovo

ThefollowingsoftwareprogramsareprovidedbyLenovotohelpyouimproveproductivityandreducethe

costassociatedwithmaintainingyourcomputer.Softwareprogramsprovidedwithyourcomputermight

varydependingonyourmodeltypeandpreinstalledoperatingsystem.

4ThinkCentreUserGuide

LenovoThinkVantageTools

TheLenovoThinkVantage

Toolsprogramguidesyoutoahostofinformationsourcesandprovideseasy

accesstovarioustoolstohelpyouworkmoreeasilyandsecurely.Formoreinformation,see“Lenovo

ThinkVantageTools”onpage75

LenovoWelcome

TheLenovoWelcomeprogramintroducessomeinnovativebuilt-infeaturesofLenovotoyouandguidesyou

throughsomeimportantsetuptaskstohelpyoumakethemostofyourcomputer.

ProductRecovery

TheProductRecoveryprogramenablesyoutorestorethecontentsoftheharddiskdrivetothefactory

defaultsettings.

ThinkVantageRescueandRecovery

TheThinkVantageRescueandRecovery

programisaonebuttonrecoveryandrestoresolutionthat

includesasetofself-recoverytoolstohelpyoudiagnosecomputerproblems,gethelp,andrecoverfrom

systemcrashes,evenifyoucannotstarttheWindowsoperatingsystem.

Note:IftheEnhancedBackupandRestoreiconintheLenovoThinkVantageToolsprogramisdimmed,it

indicatesthatyouneedtoinstalltheRescueandRecoveryprogrammanuallybeforeenablingitsfeatures.To

installtheRescueandRecoveryprogram,dothefollowing:

1.ClickStart➙AllPrograms➙LenovoThinkVantageTools,anddouble-clickEnhancedBackup

andRestore.

2.Followtheinstructionsonthescreen.

3.Whentheinstallationprocesscompletes,theEnhancedBackupandRestoreiconisactivated.

PasswordManager

ThePasswordManagerprogramautomaticallycapturesandllsinauthenticationinformationforWindows

applicationsandWebsites.

Note:IfthePasswordVaulticonintheLenovoThinkVantageToolsprogramisdimmed,itindicatesthat

youneedtoinstallthePasswordManagerprogrammanuallybeforeenablingitsfeatures.Toinstallthe

PasswordManagerprogram,dothefollowing:

1.ClickStart➙AllPrograms➙LenovoThinkVantageT ools,anddouble-clickPasswordVault.

2.Followtheinstructionsonthescreen.

3.Whentheinstallationprocesscompletes,thePasswordVaulticonisactivated.

PowerManager

ThePowerManagerprogramprovidesconvenient,exible,andcompletepowermanagementforyour

ThinkCentre

computer.ByusingthePowerManagerprogram,youcanadjustyourpowersettingsto

achievethebestbalancebetweensystemperformanceandpowersaving.

ThinkVantageSystemUpdate

TheThinkVantageSystemUpdateprogramhelpsyoukeepthesoftwareonyourcomputerup-to-dateby

downloadingandinstallingsoftwarepackages(ThinkVantageapplications,devicedrivers,BIOSupdates,

andotherthirdpartyapplications).

FingerprintSoftware

TheintegratedngerprintreaderprovidedonsomekeyboardsworkswiththeFingerprintSoftwareprogram

toenableyoutoenrollyourngerprintandassociateitwithyourWindowspassword.Asaresult,ngerprint

authenticationcanreplaceyourpasswordandenablesimpleandsecureuseraccess.Angerprintreader

keyboardisavailablewithcertaincomputersorcanbepurchasedforcomputersthatsupportthisoption.

Chapter1.Productoverview5

LenovoSolutionCenter

Note:Dependingonthedatewhenyourcomputerwasmanufactured,yourcomputerispreinstalledwith

eithertheLenovoSolutionCenterprogramortheLenovoThinkVantageToolboxprogramfordiagnostic

purposes.ForadditionalinformationabouttheLenovoThinkVantageToolboxprogram,see“Lenovo

ThinkVantageToolbox”onpage6.

TheLenovoSolutionCenterprogramenablesyoutotroubleshootandresolvecomputerproblems.It

combinesdiagnostictests,systeminformationcollection,securitystatus,andsupportinformation,along

withhintsandtipsformaximumsystemperformance.See“LenovoSolutionCenter”onpage70fordetailed

information.

LenovoThinkVantageT oolbox

Note:Dependingonthedatewhenyourcomputerwasmanufactured,yourcomputerispreinstalledwith

eithertheLenovoSolutionCenterprogramortheLenovoThinkVantageToolboxprogramfordiagnostic

purposes.ForadditionalinformationabouttheLenovoSolutionCenterprogram,see“LenovoSolution

Center”onpage70.

TheLenovoThinkVantageToolboxprogramhelpsyoumaintainyourcomputer,improvecomputingsecurity,

diagnosecomputerproblems,getfamiliarwiththeinnovativetechnologiesprovidedbyLenovo,andgetmore

informationaboutyourcomputer.Formoreinformation,see“LenovoThinkVantageToolbox”onpage71.

AdobeReader

TheAdobeReaderprogramisatoolusedtoview,print,andsearchPDFdocuments.

See“OnlineBooksfolder”onpage75

formoreinformationaboutaccessingandviewingthepublications.

Antivirussoftware

Yourcomputercomeswithantivirussoftwarethatyoucanusetodetectandeliminateviruses.Lenovo

providesafullversionofantivirussoftwareonyourcomputerwithafree30-daysubscription.After30days,

youmustrenewthelicensetocontinuereceivingtheantivirussoftwareupdates.

Formoreinformationabouthowtouseyourantivirussoftware,refertothehelpsystemofyourantivirus

software.

Locations

Thissectionprovidesinformationtohelpyoulocateyourcomputerconnectors,components,partson

thesystemboard,andinternaldrives.

Note:Thecomponentsinyourcomputermightlookslightlydifferentfromtheillustrations.

6ThinkCentreUserGuide

Locatingconnectors,controls,andindicatorsonthefrontofyour

computer

Figure1“Frontconnector,control,andindicatorlocations”onpage7showsthelocationsoftheconnectors,

controls,andindicatorsonthefrontofyourcomputer.

Figure1.Frontconnector,control,andindicatorlocations

1Opticaldriveeject/closebutton5USBconnector(USBport2)

2Powerswitch6Microphoneconnector

3Harddiskdriveactivityindicator7Headphoneconnector

4Powerindicator

8USBconnector(USBport1)

Locatingconnectorsandpartsontherearofyourcomputer

Figure2“Rearconnectorandpartlocations”onpage8showsthelocationsoftheconnectorsandparts

ontherearofyourcomputer.Someconnectorsontherearofyourcomputerarecolor-codedtohelpyou

determinewheretoconnectthecablesonyourcomputer.

Chapter1.Productoverview7

Figure2.Rearconnectorandpartlocations

1Powercordconnector

10PCIExpressx1cardslots(2)

2PS/2keyboardconnector11PCIcardslot

3DVImonitorconnector

12Optionalserialport

4VGAmonitorconnector13Cablelockslots(2)

5USBconnectors(USBports3to6)14EthernetconnectorSerialport

6Microphoneconnector

15Integratedcablelock(Kingstonlock)slot

7Audioline-outconnector

16Cover-releasebutton

8Audioline-inconnector

17Serialport

9PCIExpressx16graphicscardslot18PS/2mouseconnector

ConnectorDescription

Audioline-inconnector

Usedtoreceiveaudiosignalsfromanexternalaudiodevice,suchasastereo

system.Whenyouattachanexternalaudiodevice,acableisconnectedbetween

theaudioline-outconnectorofthedeviceandtheaudioline-inconnectorof

thecomputer.

Audioline-outconnector

Usedtosendaudiosignalsfromthecomputertoexternaldevices,suchas

poweredstereospeakers(speakerswithbuilt-inampliers),headphones,

multimediakeyboards,theaudioline-inconnectoronastereosystem,orother

externalrecordingdevices.

DVImonitorconnectorUsedtoattachaDVImonitororotherdevicesthatuseaDVImonitorconnector.

Ethernetconnector

UsedtoattachanEthernetcableforalocalareanetwork(LAN).

Note:TooperatethecomputerwithinFCCClassBlimits,useaCategory5

Ethernetcable.

8ThinkCentreUserGuide

ConnectorDescription

MicrophoneconnectorUsedtoattachamicrophonetoyourcomputerwhenyouwanttorecordsoundor

ifyouusespeech-recognitionsoftware.

PS/2keyboardconnectorUsedtoattachakeyboardthatusesaPS/2keyboardconnector.

PS/2mouseconnectorUsedtoattachamouse,atrackball,orotherpointingdevicesthatuseaPS/2

mouseconnector.

Serialport

Usedtoattachanexternalmodem,aserialprinter,orotherdevicesthatusea

9-pinserialport.

USBconnectorUsedtoattachadevicethatusesaUSBconnector,suchasaUSBkeyboard,

aUSBmouse,aUSBscanner,oraUSBprinter.IftheUSBconnectorsonyour

computerarenotenoughforyoutoconnectallyourUSBdevices,youcan

purchaseaUSBhub,whichyoucanusetoconnectadditionalUSBdevices.

VGAmonitorconnectorUsedtoattachaVGAmonitororotherdevicesthatuseaVGAmonitorconnector.

Chapter1.Productoverview9

Locatingcomponents

Figure3“Componentlocations”onpage10showsthelocationsofthevariouscomponentsinyour

computer.Toopenthecomputercover,see“Openingthecomputercover”onpage14.

Figure3.Componentlocations

1Heatsinkandfanassembly

7Systemfanassembly

2Powersupplyassembly

8Internalspeaker(installedinsomemodels)

3Memorymodule

9Coverpresenceswitch(Intrusionswitch)

4Opticaldrive

10Harddiskdrive

5FrontaudioandUSBassembly11PCIcard(installedinsomemodels)

6Frontbezel

12Heatsinkfanduct

Locatingpartsonthesystemboard

Figure4“Systemboardpartlocations”onpage11showsthelocationsofthepartsonthesystemboard.

10ThinkCentreUserGuide

Figure4.Systemboardpartlocations

1Microprocessor

11Coverpresenceswitchconnector(alsocalledintrusion

switchconnector)

2Microprocessorfanconnector

12FrontUSBconnector

3Memoryslots(4)13Serial(COM2)connector

4Thermalsensorconnector

14PCIcardslot

524-pinpowerconnector

15Powerfanconnector

6Battery16Internalspeakerconnector

7ClearCMOS(ComplementaryMetalOxide

Semiconductor)/Recoveryjumper

17Frontaudioconnector

8SATAconnectors(4)18PCIExpressx1cardslots(2)

9Frontpanelconnector

19PCIExpressx16graphicscardslot

10FrontUSBconnector20Systemfanconnector

214-pinpowerconnector

Locatinginternaldrives

Internaldrivesaredevicesthatyourcomputerusestoreadandstoredata.Y oucanadddrivestoyour

computertoincreasestoragecapacityandenableyourcomputertoreadothertypesofmedia.Internal

drivesareinstalledinbays.Inthismanual,thebaysarereferredtoasbay1,bay2,andsoon.Y our

computercomeswiththefollowingfactory-installeddrives:

•Anopticaldriveinbay1

•A3.5-inchharddiskdriveinbay3

Wheninstallingorreplacinganinternaldrive,itisimportanttonotethetypeandsizeofthedrivethatyou

caninstallorreplaceineachbayandcorrectlyconnectthecablestothedriveinstalled.Refertothe

Chapter1.Productoverview11

appropriatesectionin“Installingorreplacinghardware”onpage13forinstructionsonhowtoinstallor

replaceinternaldrivesforyourcomputer.

Figure5“Drivebaylocations”onpage12showsthelocationsofthedrivebays.

Figure5.Drivebaylocations

1Bay1-Opticaldrivebay(withanopticaldriveinstalled)

2Bay2-Cardreaderdrivebay

2Bay3-SATAharddiskdrivebay(witha3.5-inchharddiskdriveinstalled)

12ThinkCentreUserGuide

Chapter2.Installingorreplacinghardware

Thischapterprovidesinstructionsonhowtoinstallorreplacehardwareforyourcomputer.

Thischaptercontainsthefollowingtopics:

•“Handlingstatic-sensitivedevices”onpage13

•“Installingorreplacinghardware”onpage13

•“Obtainingdevicedrivers”onpage53

•“Basicsecurityfeatures”onpage53

Handlingstatic-sensitivedevices

Donotopenthestatic-protectivepackagecontainingthenewpartuntilthedefectiveparthasbeenremoved

fromthecomputerandyouarereadytoinstallthenewpart.Staticelectricity,althoughharmlesstoyou,can

seriouslydamagecomputercomponentsandparts.

Whenyouhandlecomputerpartsandcomponents,taketheseprecautionstoavoidstatic-electricitydamage:

•Limityourmovement.Movementcancausestaticelectricitytobuilduparoundyou.

•Alwayscarefullyhandlethepartsandothercomputercomponents.HandlePCIcards,memorymodules,

systemboards,andmicroprocessorsbytheedges.Nevertouchexposedcircuitry.

•Preventothersfromtouchingthepartsandothercomputercomponents.

•Beforeyoureplaceanewpart,touchthestatic-protectivepackagecontainingthenewparttoametal

expansion-slotcoverorotherunpaintedmetalsurfaceonthecomputerforatleasttwoseconds.This

reducesstaticelectricityfromthepackageandyourbody.

•Removethenewpartfromthestatic-protectivepackageanddirectlyinstallitinthecomputerwithout

placingitonanyothersurface.Ifitishardforyoutodothisinyourspecicsituation,placethe

static-protectivepackageofthenewpartonasmooth,levelsurface,andthenplacethenewparton

thestatic-protectivepackage.

•Donotplacethepartonthecomputercoverorothermetalsurface.

Installingorreplacinghardware

Thissectionprovidesinstructionsonhowtoinstallorreplacehardwareforyourcomputer.Youcanexpand

thecapabilitiesofyourcomputerandmaintainyourcomputerbyinstallingorreplacinghardware.

Attention:

Donotopenyourcomputerorattemptanyrepairbeforereadingandunderstandingthe“Importantsafetyinformation”

intheThinkCentreSafetyandWarrantyGuidethatcamewithyourcomputer.ToobtainacopyoftheThinkCentre

SafetyandWarrantyGuide,goto:

http://www.lenovo.com/support

Notes:

1.UseonlycomputerpartsprovidedbyLenovo.

2.Wheninstallingorreplacinganoption,usetheappropriateinstructionsinthissectionalongwiththe

instructionsthatcomewiththeoption.

Installingexternaloptions

Youcanconnectexternaloptionstoyourcomputer,suchasexternalspeakers,aprinter,orascanner.For

someexternaloptions,youmustinstalladditionalsoftwareinadditiontomakingthephysicalconnection.

Wheninstallinganexternaloption,see“Locatingconnectors,controls,andindicatorsonthefrontofyour

computer”onpage7

and“Locatingconnectorsandpartsontherearofyourcomputer”onpage7to

identifytherequiredconnector.Then,usetheinstructionsthatcomewiththeoptiontohelpyoumakethe

connectionandinstallanysoftwareordevicedriversthatarerequiredfortheoption.

Openingthecomputercover

Attention:

Donotopenyourcomputerorattemptanyrepairbeforereadingandunderstandingthe“Importantsafetyinformation”

intheThinkCentreSafetyandWarrantyGuidethatcamewithyourcomputer.ToobtainacopyoftheThinkCentre

SafetyandWarrantyGuide,goto:

http://www.lenovo.com/support

Thissectionprovidesinstructionsonhowtoopenthecomputercover.

CAUTION:

Turnoffthecomputerandwaitthreetoveminutestoletthecomputercoolbeforeopeningthe

computercover.

Toopenthecomputercover,dothefollowing:

1.Removeanymediafromthedrivesandturnoffallattacheddevicesandthecomputer.

2.Disconnectallpowercordsfromelectricaloutlets.

3.Disconnectthepowercords,Input/Outputcables,andanyothercablesthatareconnectedtothe

computer.See“Locatingconnectors,controls,andindicatorsonthefrontofyourcomputer”onpage7

and“Locatingconnectorsandpartsontherearofyourcomputer”onpage7.

4.Removeanylockingdevicethatsecuresthecomputercover,suchasanintegratedcablelock.See

“Integratedcablelock”onpage53.

5.Pressthecover-releasebuttononthebackofthecomputerandpivotthecomputercoverupward.

Figure6.Openingthecomputercover

14ThinkCentreUserGuide

Page is loading ...

Lenovo 7844B4U User manual

Brand: Lenovo

Model: 7844B4U

Category: Software manuals

Type: User manual

This manual is also suitable for

Download PDF

report

Lenovo 7844B4U User manual

This manual is also suitable for

Lenovo 7844B4U User manual

Related papers