Lenovo ThinkPad T420 User manual

UserGuide

ThinkPadT420andT420i

Notes:Beforeusingthisinformationandtheproductitsupports,besuretoreadthefollowing:

•SafetyandWarrantyGuide

•RegulatoryNotice

•“Importantsafetyinformation”onpagevi

•AppendixC“Notices”onpage253

TheSafetyandWarrantyGuideandtheRegulatoryNoticehavebeenuploadedontheWebsite.Toreferto

them,gotohttp://www.lenovo.com/support,andthenclickUserguides&manuals.

FirstEdition(February2011)

©CopyrightLenovo2011.

LENOVOproducts,data,computersoftware,andserviceshavebeendevelopedexclusivelyatprivateexpenseandare

soldtogovernmentalentitiesascommercialitemsasdenedby48C.F.R.2.101withlimitedandrestrictedrightsto

use,reproductionanddisclosure.

LIMITEDANDRESTRICTEDRIGHTSNOTICE:Ifproducts,data,computersoftware,orservicesaredeliveredpursuant

aGeneralServicesAdministration“GSA”contract,use,reproduction,ordisclosureissubjecttorestrictionssetforth

inContractNo.GS-35F-05925.

Contents

Readthisrst..............v

Importantsafetyinformation..........vi

Conditionsthatrequireimmediateaction..vii

Safetyguidelines............vii

Chapter1.ProductOverview......1

Locatingcomputercontrols,connectors,and

indicators..................1

Frontview................2

Right-sideview..............5

Left-sideview..............7

Bottomview...............8

Rearview...............10

Statusindicators............11

Locatingimportantproductinformation.....13

Machinetypeandmodellabel.......13

FCCIDandICCerticationnumberlabel..14

CerticateofAuthenticitylabel......15

Features.................16

Specications...............17

Operatingenvironment...........18

ThinkVantageTechnologiesandsoftware....18

AccessingapplicationsinWindows7....19

AccessConnections..........20

ActiveProtectionSystem.........21

ClientSecuritySolution.........21

FingerprintSoftware...........21

LenovoThinkVantageTools........21

LenovoThinkVantageToolbox.......22

MessageCenterPlus..........22

PasswordManager...........22

PowerManager............22

PresentationDirector..........23

ProductRecovery...........23

RescueandRecovery..........23

SystemUpdate............23

ThinkVantageGPS...........23

Chapter2.Usingyourcomputer...25

Registeryourcomputer...........25

Frequentlyaskedquestions.........25

Specialkeysandbuttons..........27

ThinkVantagebutton..........27

Numerickeypad............27

Functionkeycombinations........28

Volumeandmutebuttons........31

WindowskeyandApplicationkey.....33

UsingtheUltraNavpointingdevice.......33

UsingtheTrackPointpointingdevice....34

Usingthetouchpad...........35

BehavioroftheUltraNavandanexternal

mouse................36

AddingtheUltraNavicontothesystemtray.37

Powermanagement............37

Checkingbatterystatus.........37

Usingtheacpoweradapter........38

Chargingthebattery..........38

Maximizingbatterylife..........38

Managingyourbatterypower.......39

Power-savingmodes..........39

Handlingthebattery...........40

Connectingtothenetwork..........42

Ethernetconnections..........42

Wirelessconnections..........42

Usingthebuilt-inmodem.........49

Usingaprojectororexternaldisplay......69

Changingdisplaysettings........69

Connectingaprojectororexternaldisplay..70

Settingupapresentation.........75

Usingdualdisplays...........75

UsingtheNVIDIAOptimusGraphicsfeature...77

Usingaudiofeatures............77

Usinganintegratedcamera.........78

UsingtheThinkLightfeature.........79

Usingtheopticaldrive...........79

Usingthemediacardreader.........79

InsertinganExpressCard,aashmediacard,

orasmartcard.............80

RemovinganExpressCard,aashmediacard

orasmartcard.............80

Chapter3.Youandyourcomputer..83

Accessibilityandcomfort..........83

Ergonomicinformation..........83

Adjustingyourcomputertotyou.....84

Accessibilityinformation.........85

FullScreenMagnierfunction.......85

Travelingwithyourcomputer.........86

Traveltips...............86

Travelaccessories...........86

Chapter4.Security..........89

Attachingamechanicallock.........89

Usingpasswords..............89

©CopyrightLenovo2011

i

Passwordsandsleep(standby)mode....90

Typingpasswords...........90

Power-onpassword...........90

Harddiskpasswords..........91

Supervisorpassword..........93

Harddisksecurity.............95

Settingthesecuritychip...........96

Usingangerprintreader..........97

Noticeondeletingdatafromyourharddiskdrive

orsolidstatedrive.............100

Usingandunderstandingrewalls.......101

Protectingdataagainstviruses........101

Chapter5.Recoveryoverview...103

Creatingandusingrecoverymedia......103

Creatingrecoverymedia.........104

Usingrecoverymedia..........104

Performingbackupandrecoveryoperations...105

Performingabackupoperation......105

Performingarecoveryoperation......105

UsingtheRescueandRecoveryworkspace...106

Creatingandusingarescuemedium......107

Creatingarescuemedium........107

Usingarescuemedium.........107

Reinstallingpreinstalledapplicationsanddevice

drivers..................108

Solvingrecoveryproblems..........109

Chapter6.Replacingdevices...111

Staticelectricityprevention..........111

Replacingthebattery............111

Replacingtheharddiskdrive.........115

Replacingthekeyboard...........119

Replacingmemory.............123

InstallingandreplacingthemSATAsolidstate

drive...................127

InstallingandreplacingaPCIExpressMiniCard

forwirelessLAN/WiMAXconnection......130

InstallingandreplacingthePCIExpressMiniCard

forwirelessWAN..............137

ReplacingtheSIMcard...........142

Replacingthesolidstatedrive........143

Chapter7.Enhancingyour

computer..............149

FindingThinkPadoptions..........149

UsingtheserialUltrabayenhanced......149

Replacingthedevice..........149

Performingahotswap..........150

Performingawarmswap.........151

Insertingtheharddiskdriveintothe

adapter................153

Insertingtheharddiskdriveadapterintothe

bay.................155

ThinkPadPortReplicatorSeries3,ThinkPadMini

DockSeries3,ThinkPadMiniDockPlusSeries3,

andThinkPadMiniDockPlusSeries3(170W)..156

Frontview...............156

Rearview...............159

AttachingaThinkPadPortReplicatorSeries3,

ThinkPadMiniDockSeries3,ThinkPadMini

DockPlusSeries3,orThinkPadMiniDock

PlusSeries3(170W)..........162

DetachingaThinkPadPortReplicatorSeries

3,ThinkPadMiniDockSeries3,ThinkPad

MiniDockPlusSeries3,ortheThinkPadMini

DockPlusSeries3(170W)........164

Securityfeature............166

Usingthesystemlockkey........168

Chapter8.Advanced

conguration............169

Installinganewoperatingsystem.......169

Beforeyoubegin............169

InstallingWindows7..........170

InstallingWindowsVista.........171

InstallingWindowsXP..........172

Installingdevicedrivers...........175

Installingthedriverforthe4-in-1MediaCard

Reader................175

InstallingThinkPadMonitorFileforWindows

2000/XP/Vista/7............175

ThinkPadSetup..............177

Congmenu..............178

Dateandtimemenu...........178

Securitymenu.............178

Startupmenu.............180

Restartmenu.............181

ThinkPadSetupitems..........181

UpdatingyoursystemUEFIBIOS.....193

Usingsystemmanagement..........193

Systemmanagement..........193

Settingmanagementfeatures.......195

Chapter9.Preventingproblems..197

Generaltipsforpreventingproblems......197

Makingsuredevicedriversarecurrent.....198

GettingthelatestdriversfromtheWebsite..198

GettingthelatestdriversusingSystem

Update................198

Takingcareofyourcomputer.........199

Cleaningthecoverofyourcomputer....201

Chapter10.Troubleshooting

computerproblems.........203

iiUserGuide

Diagnosingprograms............203

UsingLenovoThinkVantageToolbox....203

Troubleshooting..............203

Computerstopsresponding.......203

Spillsonthekeyboard..........204

Errormessages............204

Errorswithoutmessages.........207

Beeperrors..............208

Memoryproblems...........208

Modemandnetworking.........208

Keyboardandotherpointingdevices....215

Displayandmultimediadevices......217

Fingerprintreaderproblems........226

Batteryandpower...........227

Drivesandotherstoragedevices.....230

Softwareproblems...........233

Portsandconnectors..........233

UniversalSerialBusproblems.......233

Adockingstationorportreplicator

problem...............233

Chapter11.Gettingsupport....235

BeforeyoucontactLenovo..........235

Registeryourcomputer.........235

Downloadsystemupdates........235

Recordinformation...........235

Gettinghelpandservice...........236

Usingdiagnosticprograms........236

LenovoSupportWebsite.........236

CallingLenovo.............236

Purchasingadditionalservices........241

AppendixA.Regulatory

information.............243

Wirelessrelatedinformation.........243

LocationoftheUltraConnectwireless

antennas...............244

Locatingwirelessregulatorynotices....246

Exportclassicationnotice..........247

Electronicemissionnotices..........247

FederalCommunicationsCommission

DeclarationofConformity........247

IndustryCanadaClassBemissioncompliance

statement...............247

EuropeanUnion-Compliancetothe

ElectromagneticCompatibilityDirective...247

GermanClassBcompliancestatement...248

KoreaClassBcompliancestatement....248

JapaneseVCCIClassBstatement.....249

Japancompliancestatementforproducts

whichconnecttothepowermainswith

ratedcurrentlessthanorequalto20Aper

phase................249

Lenovoproductserviceinformationfor

Taiwan................249

Additionalregulatoryinformation.......249

AppendixB.WEEEandrecycling

statements.............251

EUWEEEstatements............251

Japanrecyclingstatements.........251

AppendixC.Notices........253

Trademarks................254

©CopyrightLenovo2011

iii

ivUserGuide

Readthisrst

Besuretofollowtheimportanttipsgivenheretocontinuetogetthemostuseandenjoymentoutofyour

computer.Failuretodosomightleadtodiscomfortorinjury,orcauseyourcomputertofail.

Whenyourcomputeristurnedonorthebatteryischarging,thebase,the

palmrest,andsomeotherpartsmaybecomehot.Thetemperaturethey

reachdependsontheamountofsystemactivityandthelevelofchargein

thebattery.

Extendedcontactwithyourbody,eventhroughclothing,couldcause

discomfortorevenaskinburn.

•Avoidkeepingyourhands,yourlap,oranyotherpartofyourbodyin

contactwithahotsectionofthecomputerforanyextendedtime.

•Periodicallytakehandsfromusingthekeyboardbyliftingyourhandsfrom

thepalmrest.

Protectyourselffromtheheatgeneratedbytheacpoweradapter.

Whentheacpoweradapterisconnectedtoanelectricaloutletandyour

computer,itgeneratesheat.

Extendedcontactwithyourbody,eventhroughclothing,maycauseaskin

burn.

•Toavoidspillsandthedangerofelectricalshock,keepliquidsawayfrom

yourcomputer.

•Neveruseittowarmyourbody.

Preventyourcomputerfromgettingwet.

•Toavoidspillsandthedangerofelectricalshock,keepliquidsawayfrom

yourcomputer.

Protectthecablesfrombeingdamaged.

Applyingstrongforcetocablesmaydamageorbreakthem.

•Routecommunicationlines,orthecablesofanacpoweradapter,amouse,a

keyboard,aprinter,oranyotherelectronicdevice,sothattheycannotbe

walkedon,trippedover,pinchedbyyourcomputerorotherobjects,orin

anywaysubjectedtotreatmentthatcouldinterferewiththeoperationof

yourcomputer.

©CopyrightLenovo2011

v

Protectyourcomputeranddatawhenmovingit.

Beforemovingacomputerequippedwithaharddiskdrive,dooneofthe

following,andmakesurethatthe“powerswitch”onpage11isofforisblinking:

•Turnitoff.

•PressFn+F4toputitinsleep(standby)mode

•PressFn+F12toputitinhibernationmode.

Thiswillhelptopreventdamagetothecomputer,andpossiblelossofdata.

Handleyourcomputergently.

•Donotdrop,bump,scratch,twist,hit,vibrate,push,orplaceheavyobjectson

yourcomputer,display,orexternaldevices.

Carryyourcomputercarefully.

•Useaqualitycarryingcasethatprovidesadequatecushioningandprotection.

•Donotpackyourcomputerinatightlypackedsuitcaseorbag.

•Beforeputtingyourcomputerinacarryingcase,makesurethatitisoff,insleep

(standby)mode(Fn+F4),orinhibernationmode(Fn+F12).Donotputacomputer

inacarryingcasewhileitisturnedon.

Importantsafetyinformation

Note:Readimportantsafetyinformationrst.

Thisinformationcanhelpyousafelyuseyournotebookpersonalcomputer.Followandretainallinformation

includedwithyourcomputer.Theinformationinthisdocumentdoesnotalterthetermsofyourpurchase

agreementortheLenovoLimitedWarranty.Formoreinformation,seetheSafetyandWarrantyGuide

camewithyourcomputer.

Customersafetyisimportant.Ourproductsaredevelopedtobesafeandeffective.However,personal

computersareelectronicdevices.Powercords,poweradapters,andotherfeaturescancreatepotential

safetyrisksthatcanresultinphysicalinjuryorpropertydamage,especiallyifmisused.Toreducethese

risks,followtheinstructionsincludedwithyourproduct,observeallwarningsontheproductandinthe

operatinginstructions,andreviewtheinformationincludedinthisdocumentcarefully.Bycarefullyfollowing

theinformationcontainedinthisdocumentandprovidedwithyourproduct,youcanhelpprotectyourself

fromhazardsandcreateasafercomputerworkenvironment.

Note:Thisinformationincludesreferencestopoweradaptersandbatteries.Inadditiontonotebook

computers,someproducts(suchasspeakersandmonitors)shipwithexternalpoweradapters.Ifyouhave

suchaproduct,thisinformationappliestoyourproduct.Inaddition,computerproductscontainacoin-sized

internalbatterythatprovidespowertothesystemclockevenwhenthecomputerisunplugged,sothe

batterysafetyinformationappliestoallcomputerproducts.

viUserGuide

Conditionsthatrequireimmediateaction

Productscanbecomedamagedduetomisuseorneglect.Someproductdamageisseriousenough

thattheproductshouldnotbeusedagainuntilithasbeeninspectedand,ifnecessary,repairedby

anauthorizedservicer.

Aswithanyelectronicdevice,paycloseattentiontotheproductwhenitisturnedon.Onveryrare

occasions,youmightnoticeanodororseeapuffofsmokeorsparksventfromyourproduct.Oryou

mighthearsoundslikepopping,crackingorhissing.Theseconditionsmightmerelymeanthatan

internalelectroniccomponenthasfailedinasafeandcontrolledmanner.Or,theymightindicate

apotentialsafetyissue.However,donottakerisksorattempttodiagnosethesituationyourself.

ContacttheCustomerSupportCenterforfurtherguidance.ForalistofServiceandSupportphone

numbers,seethefollowingWebsite:http://www.lenovo.com/support/phone.

Frequentlyinspectyourcomputeranditscomponentsfordamageorwearorsignsofdanger.Ifyou

haveanyquestionabouttheconditionofacomponent,donotusetheproduct.ContacttheCustomer

SupportCenterortheproductmanufacturerforinstructionsonhowtoinspecttheproductand

haveitrepaired,ifnecessary.

Intheunlikelyeventthatyounoticeanyofthefollowingconditions,orifyouhaveanysafetyconcerns

withyourproduct,stopusingtheproductandunplugitfromthepowersourceandtelecommunication

linesuntilyoucanspeaktotheCustomerSupportCenterforfurtherguidance.

•Powercords,plugs,poweradapters,extensioncords,surgeprotectors,orpowersuppliesthatare

cracked,broken,ordamaged.

•Signsofoverheating,smoke,sparks,orre.

•Damagetoabattery(suchascracks,dents,orcreases),dischargefromabattery,orabuildupofforeign

substancesonthebattery.

•Acracking,hissingorpoppingsound,orstrongodorthatcomesfromtheproduct.

•Signsthatliquidhasbeenspilledoranobjecthasfallenontothecomputerproduct,thepowercordor

poweradapter.

•Thecomputerproduct,powercord,orpoweradapterhasbeenexposedtowater.

•Theproducthasbeendroppedordamagedinanyway.

•Theproductdoesnotoperatenormallywhenyoufollowtheoperatinginstructions.

Note:Ifyounoticetheseconditionswithaproduct(suchasanextensioncord)thatisnotmanufacturedfor

orbyLenovo,stopusingthatproductuntilyoucancontacttheproductmanufacturerforfurtherinstructions,

oruntilyougetasuitablereplacement.

Safetyguidelines

Alwaysobservethefollowingprecautionstoreducetheriskofinjuryandpropertydamage.

Formoreinformation,seetheSafetyandWarrantyGuidecamewithyourcomputer.

Serviceandupgrades

DonotattempttoserviceaproductyourselfunlessinstructedtodosobytheCustomerSupportCenteror

yourdocumentation.OnlyuseaServiceProviderwhoisapprovedtorepairyourparticularproduct.

Note:Somecomputerpartscanbeupgradedorreplacedbythecustomer.Upgradestypicallyare

referredtoasoptions.ReplacementpartsapprovedforcustomerinstallationarereferredtoasCustomer

ReplaceableUnits,orCRUs.Lenovoprovidesdocumentationwithinstructionswhenitisappropriatefor

customerstoinstalloptionsorreplaceCRUs.Youmustcloselyfollowallinstructionswheninstallingor

replacingparts.TheOffstateofapowerindicatordoesnotnecessarilymeanthatvoltagelevelsinsidea

©CopyrightLenovo2011

vii

productarezero.Beforeyouremovethecoversfromaproductequippedwithapowercord,alwaysmake

surethatthepoweristurnedoffandthattheproductisunpluggedfromanypowersource.Ifyouhave

anyquestionsorconcerns,contacttheCustomerSupportCenter.

Althoughtherearenomovingpartsinyourcomputerafterthepowercordhasbeendisconnected,the

followingwarningsarerequiredforyoursafety.

DANGER

Hazardousmovingparts.Keepngersandotherbodypartsaway.

CAUTION:

BeforereplacinganyCRUs,turnoffthecomputerandwaitthreetoveminutestoletthecomputer

coolbeforeopeningthecover.

viiiUserGuide

Powercordsandpoweradapters

DANGER

Useonlythepowercordsandpoweradapterssuppliedbytheproductmanufacturer.

Thepowercordsshallbesafetyapproved.ForGermany,itshallbeH05VV-F,3G,0.75mm

2

,or

better.Forothercountries,thesuitabletypesshallbeusedaccordingly.

Neverwrapapowercordaroundapoweradapterorotherobject.Doingsocanstressthecordin

waysthatcancausethecordtofray,crack,orcrimp.Thiscanpresentasafetyhazard.

Alwaysroutepowercordssothattheywillnotbewalkedon,trippedover,orpinchedbyobjects.

Protectpowercordandpoweradaptersfromliquids.Forinstance,donotleaveyourpowercordor

poweradapternearsinks,tubs,toilets,oronoorsthatarecleanedwithliquidcleansers.Liquids

cancauseashortcircuit,particularlyifthepowercordorpoweradapterhasbeenstressedby

misuse.Liquidsalsocancausegradualcorrosionofpowercordterminalsand/ortheconnector

terminalsonapoweradapter,whichcaneventuallyresultinoverheating.

Alwaysconnectpowercordsandsignalcablesinthecorrectorderandensurethatallpowercord

connectorsaresecurelyandcompletelypluggedintoreceptacles.

DonotuseanypoweradapterthatshowscorrosionattheACinputpinsorshowssignsof

overheating(suchasdeformedplastic)attheACinputoranywhereonthepoweradapter.

Donotuseanypowercordswheretheelectricalcontactsoneitherendshowsignsofcorrosionor

overheatingorwherethepowercordappearstohavebeendamagedinanyway.

Extensioncordsandrelateddevices

Ensurethatextensioncords,surgeprotectors,uninterruptiblepowersupplies,andpowerstripsthatyouuse

areratedtohandletheelectricalrequirementsoftheproduct.Neveroverloadthesedevices.Ifpowerstrips

areused,theloadshouldnotexceedthepowerstripinputrating.Consultanelectricianformoreinformation

ifyouhavequestionsaboutpowerloads,powerrequirements,andinputratings.

©CopyrightLenovo2011

ix

Plugsandoutlets

DANGER

Ifareceptacle(poweroutlet)thatyouintendtousewithyourcomputerequipmentappearstobe

damagedorcorroded,donotusetheoutletuntilitisreplacedbyaqualiedelectrician.

Donotbendormodifytheplug.Iftheplugisdamaged,contactthemanufacturertoobtain

areplacement.

Donotshareanelectricaloutletwithotherhomeorcommercialappliancesthatdrawlargeamounts

ofelectricity;otherwise,unstablevoltagemightdamageyourcomputer,data,orattacheddevices.

Someproductsareequippedwithathree-prongedplug.Thisplugtsonlyintoagrounded

electricaloutlet.Thisisasafetyfeature.Donotdefeatthissafetyfeaturebytryingtoinsertitinto

anon-groundedoutlet.Ifyoucannotinserttheplugintotheoutlet,contactanelectricianforan

approvedoutletadapterortoreplacetheoutletwithonethatenablesthissafetyfeature.Never

overloadanelectricaloutlet.Theoverallsystemloadshouldnotexceed80percentofthebranch

circuitrating.Consultanelectricianformoreinformationifyouhavequestionsaboutpowerloads

andbranchcircuitratings.

Besurethatthepoweroutletyouareusingisproperlywired,easilyaccessible,andlocatedclose

totheequipment.Donotfullyextendpowercordsinawaythatwillstressthecords.

Besurethatthepoweroutletprovidesthecorrectvoltageandcurrentfortheproductyouare

installing.

Carefullyconnectanddisconnecttheequipmentfromtheelectricaloutlet.

Powersupplystatement

DANGER

Neverremovethecoveronapowersupplyoranypartthathasthefollowinglabelattached.

Hazardousvoltage,current,andenergylevelsarepresentinsideanycomponentthathasthislabel

attached.Therearenoserviceablepartsinsidethesecomponents.Ifyoususpectaproblemwith

oneoftheseparts,contactaservicetechnician.

Externaldevices

CAUTION:

DonotconnectordisconnectanyexternaldevicecablesotherthanUniversalSerialBus(USB)and

1394cableswhilethecomputerpowerison;otherwise,youmightdamageyourcomputer.Toavoid

possibledamagetoattacheddevices,waitatleastvesecondsafterthecomputerisshutdownto

disconnectexternaldevices.

xUserGuide

Batteries

DANGER

PersonalcomputersmanufacturedbyLenovocontainacoincellbatterytoprovidepowerto

thesystemclock.Inaddition,manymobileproducts,suchasnotebookcomputers,utilizea

rechargeablebatterypacktoprovidesystempowerwheninportablemode.Batteriessuppliedby

Lenovoforusewithyourproducthavebeentestedforcompatibilityandshouldonlybereplaced

withapprovedparts.

Neverattempttoopenorserviceanybattery.Donotcrush,puncture,orincineratebatteriesor

shortcircuitthemetalcontacts.Donotexposethebatterytowaterorotherliquids.Onlyrecharge

thebatterypackstrictlyaccordingtoinstructionsincludedintheproductdocumentation.

Batteryabuseormishandlingcancausethebatterytooverheat,whichcancausegassesorame

to“vent”fromthebatterypackorcoincell.Ifyourbatteryisdamaged,orifyounoticeany

dischargefromyourbatteryorthebuildupofforeignmaterialsonthebatteryleads,stopusingthe

batteryandobtainareplacementfromthebatterymanufacturer.

Batteriescandegradewhentheyareleftunusedforlongperiodsoftime.Forsomerechargeable

batteries(particularlyLithiumIonbatteries),leavingabatteryunusedinadischargedstatecould

increasetheriskofabatteryshortcircuit,whichcouldshortenthelifeofthebatteryandcanalso

poseasafetyhazard.DonotletrechargeableLithium-Ionbatteriescompletelydischargeorstore

thesebatteriesinadischargedstate.

Rechargeablebatterynotice

DANGER

Donotattempttodisassembleormodifythebatterypack.Attemptingtodosocancausean

explosion,orliquidleakagefromthebatterypack.Abatterypackotherthantheonespeciedby

Lenovo,oradisassembledormodiedbatterypackisnotcoveredbythewarranty.

Iftherechargeablebatterypackisincorrectlyreplaced,thereisdangerofanexplosion.Thebattery

packcontainsasmallamountofharmfulsubstances.T oavoidpossibleinjury:

•ReplaceonlywithabatteryofthetyperecommendedbyLenovo.

•Keepthebatterypackawayfromre.

•Donotexposeittowaterorrain.

•Donotattempttodisassembleit.

•Donotshort-circuitit.

•Keepitawayfromchildren.

•Donotdropthebatterypack.

Donotputthebatterypackintrashthatisdisposedofinlandlls.Whendisposingofthebattery,

complywithlocalordinancesorregulations.

Thebatterypackshouldbestoredatroomtemperature,chargedtoapproximately30to50%

ofcapacity.Werecommendthatbatterypackbechargedaboutonceperyeartoprevent

overdischarge.

©CopyrightLenovo2011

xi

Lithiumcoincellbatterynotice

DANGER

Dangerofexplosionifbatteryisincorrectlyreplaced.

Whenreplacingthelithiumcoincellbattery,useonlythesameoranequivalenttypethatis

recommendedbythemanufacturer.Thebatterycontainslithiumandcanexplodeifnotproperly

used,handled,ordisposedof.

Donot:

•Throworimmerseintowater

•Heattomorethan100°C(212°F).

•Repairordisassemble

Disposeofthebatteryasrequiredbylocalordinancesorregulations.

ThefollowingstatementappliestousersinthestateofCalifornia,U.S.A.

CaliforniaPerchlorateInformation:

ProductscontainingCR(manganesedioxide)lithiumcoincellbatteriesmaycontainperchlorate.

PerchlorateMaterial-specialhandlingmayapply.See

http://www.dtsc.ca.gov/hazardouswaste/perchlorate.

xiiUserGuide

Heatandproductventilation

DANGER

Computers,acpoweradapters,andmanyaccessoriescangenerateheatwhenturnedonandwhen

batteriesarecharging.Notebookcomputerscangenerateasignicantamountofheatduetotheir

compactsize.Alwaysfollowthesebasicprecautions:

•Whenyourcomputeristurnedonorthebatteryischarging,thebase,thepalmrest,andsome

otherpartsmaybecomehot.Avoidkeepingyourhands,yourlap,oranyotherpartofyour

bodyincontactwithahotsectionofthecomputerforanyextendedlengthoftime.Whenyou

usethekeyboard,avoidkeepingyourpalmsonthepalmrestforaprolongedperiodoftime.

Yourcomputergeneratessomeheatduringnormaloperation.Theamountofheatdependson

theamountofsystemactivityandthebatterychargelevel.Extendedcontactwithyourbody,

eventhroughclothing,couldcausediscomfortorevenaskinburn.Periodicallytakebreaks

fromusingthekeyboardbyliftingyourhandsfromthepalmrest;andbecarefulnottouse

thekeyboardforanyextendedlengthoftime.

•Donotoperateyourcomputerorchargethebatterynearammablematerialsorinexplosive

environments.

•Ventilationslots,fansand/orheatsinksareprovidedwiththeproductforsafety,comfort,and

reliableoperation.Thesefeaturesmightinadvertentlybecomeblockedbyplacingtheproducton

abed,sofa,carpet,orotherexiblesurface.Neverblock,cover,ordisablethesefeatures.

•Whentheacpoweradapterisconnectedtoanelectricaloutletandyourcomputer,itgenerates

heat.Donotplacetheadapterincontactwithanypartofyourbodywhileusingit.Neverusethe

acpoweradaptertowarmyourbody.Extendedcontactwithyourbody,eventhroughclothing,

maycauseaskinburn.

Foryoursafety,alwaysfollowthesebasicprecautionswithyourcomputer:

•Keepthecoverclosedwheneverthecomputerispluggedin.

•Regularlyinspecttheoutsideofthecomputerfordustaccumulation.

•Removedustfromventsandanyperforationsinthebezel.Morefrequentcleaningsmightbe

requiredforcomputersindustyorhigh-trafcareas.

•Donotrestrictorblockanyventilationopenings.

•Donotoperateyourcomputerinsidefurniture,asthismightincreasetheriskofoverheating.

•Airowtemperaturesintothecomputershouldnotexceed35°C(95°F).

©CopyrightLenovo2011

xiii

Electricalcurrentsafetyinformation

DANGER

Electriccurrentfrompower,telephone,andcommunicationcablesishazardous.

Toavoidashockhazard:

•Donotuseyourcomputerduringalightningstorm.

•Donotconnectordisconnectanycablesorperforminstallation,maintenance,orreconguration

ofthisproductduringanelectricalstorm.

•Connectallpowercordstoaproperlywiredandgroundedelectricaloutlet.

•Connecttoproperlywiredoutletsanyequipmentthatwillbeattachedtothisproduct.

•Wheneverpossible,useonehandonlytoconnectordisconnectsignalcables.

•Neverturnonanyequipmentwhenthereisevidenceofre,water,orstructuraldamage.

•Disconnecttheattachedpowercords,batterypack,andallthecablesbeforeyouopenthe

devicecovers,unlessinstructedotherwiseintheinstallationandcongurationprocedures.

•Donotuseyoucomputeruntilallinternalpartsenclosuresarefastenedintoplace.Neveruse

thecomputerwheninternalpartsandcircuitsareexposed.

DANGER

•Connectanddisconnectcablesasdescribedinthefollowingprocedureswheninstalling,

moving,oropeningcoversonthisproductorattacheddevices.

Toconnect:

1.TurneverythingOFF .

2.First,attachallcablestodevices.

3.Attachsignalcablestoconnectors.

4.Attachpowercordstooutlets.

5.TurndevicesON.

Todisconnect:

1.TurneverythingOFF .

2.First,removepowercordsfromoutlets.

3.Removesignalcablesfromconnectors.

4.Removeallcablesfromdevices.

Thepowercordmustbedisconnectedfromthewalloutletorreceptaclebeforeinstallingallother

electricalcablesconnectedtothecomputer.

Thepowercordmaybereconnectedtothewalloutletorreceptacleonlyafterallotherelectrical

cableshavebeenconnectedtothecomputer.

xivUserGuide

Modemsafetyinformation

DANGER

ForNorthAmericaType:

CAUTION:

Toreducetheriskofre,useonlyNo.26AWGorlarger(forexample,No.24AWG)

telecommunicationlinecordlistedbyUnderwritersLaboratories(UL)orcertiedbytheCanadian

StandardsAssociation(CSA).

Toreducetheriskofre,electricalshock,orinjurywhenusingtelephoneequipment,always

followbasicsafetyprecautionsasthefollowing:

•Donotconnectthecabletoordisconnectitfromthetelephoneoutletonthewallduringa

lightningstorm.

•Donotinstalltelephonejacksinwetlocations.Donotuseyourcomputernearwater.

•Donottouchuninsulatedtelephonewiresorterminalsunlessthetelephonelinehasbeen

disconnectedatthenetworkinterface.

•Usecautionwheninstallingormodifyingtelephonelines.

•Donotuseyourcomputerwiththetelephonecableconnectionduringanelectricalstorm.There

maybearemoteriskofelectricshockfromlightning.

•Donotuseatelephone(otherthanacordlesstype)duringanelectricalstorm.

•Donotusethetelephonetoreportagasleakinthevicinityoftheleak.

•DonotconnectthetelephonecabletotheEthernetconnector.

Lasercompliancestatement

CAUTION:

Whenlaserproducts(suchasCD-ROMs,DVDdrives,beropticdevices,ortransmitters)are

installed,notethefollowing:

•Donotremovethecovers.Removingthecoversofthelaserproductcouldresultinexposureto

hazardouslaserradiation.Therearenoserviceablepartsinsidethedevice.

•Useofcontrolsoradjustmentsorperformanceofproceduresotherthanthosespeciedherein

mightresultinhazardousradiationexposure.

DANGER

SomelaserproductscontainanembeddedClass3AorClass3Blaserdiode.Notethefollowing.

Laserradiationwhenopen.Donotstareintothebeam,donotviewdirectlywithoptical

instruments,andavoiddirectexposuretothebeam.

Liquidcrystaldisplay(LCD)notice

CAUTION:

Forproductswithmercury-containinguorescentlamps(i.e.,non-LED)

•Theuorescentlampintheliquidcrystaldisplaycontainsmercury;disposeaccordingtolocal,

state,orfederallaws.

•TheLCDismadeofglass,androughhandlingordroppingthecomputercancausetheLCDto

break.IftheLCDbreaksandtheinternaluidgetsintoyoureyesoronyourhands,immediately

©CopyrightLenovo2011

xv

washtheaffectedareaswithwaterforatleast15minutes;ifanysymptomsarepresentafter

washing,getmedicalcare.

Usingheadphonesorearphones

Ifyourcomputerhasbothaheadphoneconnectorandanaudio-outconnector,alwaysusetheheadphone

connectorforheadphones(alsocalledaheadset)orearphones.

CAUTION:

Excessivesoundpressurefromearphonesandheadphonescancausehearingloss.Adjustmentof

theequalizertomaximumincreasestheearphonesandheadphonesoutputvoltageandthereforethe

soundpressurelevel.

Excessiveuseofheadphonesorearphonesforalongperiodoftimeathighvolumecanbedangerousifthe

outputoftheheadphoneorearphoneconnectorsdonotcomplywithspecicationsofEN50332-2.The

headphoneoutputconnectorofyourcomputercomplieswithEN50332-2Subclause7.Thisspecication

limitsthecomputer’smaximumwidebandtrueRMSoutputvoltageto150mV.Tohelpprotectagainst

hearingloss,ensurethattheheadphonesorearphonesyouusealsocomplywithEN50332-2(Clause7

limits)forawidebandcharacteristicvoltageof75mV.UsingheadphonesthatdonotcomplywithEN

50332-2canbedangerousduetoexcessivesoundpressurelevels.

IfyourLenovocomputercamewithheadphonesorearphonesinthepackage,asaset,thecombinationof

theheadphonesorearphonesandthecomputeralreadycomplieswiththespecicationsofEN50332-1.

Ifdifferentheadphonesorearphonesareused,ensurethattheycomplywithEN50332-1(Clause6.5

LimitationValues).UsingheadphonesthatdonotcomplywithEN50332-1canbedangerousdueto

excessivesoundpressurelevels.

Additionalsafetyinformation

DANGER

Plasticbagscanbedangerous.Keepplasticbagsawayfrombabiesandchildrentoavoiddanger

ofsuffocation.

NoticeforTabletPCusers

SafetyNoticeforusersinAustralia:

DANGER

Donotconnectphonelinewhileusingtabletmode.

NoticeforusersintheU.S.A.

ManyPCproductsandaccessoriescontaincords,cablesorwires,suchaspowercordsorcordstoconnect

theaccessorytoaPC.Ifthisproducthassuchacord,cableorwire,thenthefollowingwarningapplies:

WARNING

Handlingthecordonthisproductorcordsassociatedwithaccessoriessoldwiththisproductwillexpose

youtolead,achemicalknowntotheStateofCaliforniatocausecancer,andbirthdefectsorother

reproductiveharm.Washhandsafterhandling.

Savetheseinstructions.

xviUserGuide

Chapter1.ProductOverview

Thischapterprovidesinformationaboutthelocationsofconnectors,locatingimportantproductinformation,

computerfeatures,specications,operatingenvironment,andpreinstalledsoftwareprograms.

Thischaptercontainsthefollowingtopics:

•“Locatingcomputercontrols,connectors,andindicators”onpage1

•“Locatingimportantproductinformation”onpage13

•“Features”onpage16

•“Specications”onpage17

•“Operatingenvironment”onpage18

•“ThinkVantageTechnologiesandsoftware”onpage18

Locatingcomputercontrols,connectors,andindicators

Thissectionintroducesyoutothehardwarefeaturesofyourcomputer,andthengivesyouthebasic

informationyou'llneedtostarttakingadvantageofitsfunctions.

•“Frontview”onpage2

•“Right-sideview”onpage5

•“Left-sideview”onpage7

•“Rearview”onpage10

•“Bottomview”onpage8

•“Statusindicators”onpage11

1

Frontview

Figure1.ThinkPadT420/T420ifrontview

1 Computerdisplay

2 Powerswitch

3 Fingerprintreader 4 TrackPointbuttons

5 TrackPointpointingstick 6 ThinkVantagebutton

7 Systemandpower-statusindicators 8 UltraConnectwirelessantennas(left)

9 Built-inmicrophone(left)

10 Integratedcamera

11 ThinkLight

12 Built-inmicrophone(right)

13 UltraConnectwirelessantennas(right) 14 Built-instereospeaker(left)

15 ForwardandBackkeys 16 Bluetoothantenna

17 Touchpad 18 Touchpadbuttons

19 Fnkey

20 CapsLockkeyindicator

21 Built-instereospeaker(left)

22 Volumecontrolbuttons

1 Computerdisplay

Thehigh-resolution,thin-lmtransistor(TFT)displayprovidesclearandbrillianttextandgraphics.

Fordetails,refertotheinstructionsin“Changingdisplaysettings”onpage69.

2 Powerswitch

Usethepowerswitchtoturnonthecomputer.Toturnoffyourcomputer,usetheStartmenushutdown

options.

Ifyoucannotturnoffthecomputerbythismethod,pressandholdthepowerswitchfor2seconds.

2UserGuide

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