Lenovo ThinkPad T420s User manual

UserGuide

ThinkPadT420sandT420si

Notes:Beforeusingthisinformationandtheproductitsupports,besuretoreadthefollowing:

•SafetyandWarrantyGuide

•RegulatoryNotice

•“Importantsafetyinformation”onpagevi

•AppendixC“Notices”onpage225

TheSafetyandWarrantyGuideandtheRegulatoryNoticehavebeenuploadedontheWebsite.Toreferto

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

SecondEdition(December2011)

©CopyrightLenovo2011.

LIMITEDANDRESTRICTEDRIGHTSNOTICE:IfdataorsoftwareisdeliveredpursuantaGeneralServicesAdministration

“GSA”contract,use,reproduction,ordisclosureissubjecttorestrictionssetforthinContractNo.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..............6

Bottomview...............7

RearView................9

Statusindicators............10

Locatingimportantproductinformation.....13

Machinetypeandmodellabel.......13

FCCIDandICCerticationnumberlabel..14

CerticateofAuthenticitylabel......15

Features.................15

Specications...............17

Operatingenvironment...........17

ThinkVantageTechnologiesandsoftware....18

AccessingapplicationsinWindows7....18

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

ActiveProtectionSystem.........20

ClientSecuritySolution.........20

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

LenovoSolutionCenter.........21

LenovoThinkVantageTools........21

LenovoThinkVantageToolbox.......21

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

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

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

PresentationDirector..........22

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

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

SimpleTap..............23

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

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

ThinkVantageProductivityCenter.....24

Chapter2.Usingyourcomputer...25

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

Frequentlyaskedquestions.........25

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

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

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

Functionkeycombinations........28

Volumeandmutebuttons........32

WindowskeyandApplicationkey.....33

UsingtheUltraNavpointingdevice.......34

UsingtheTrackPointpointingdevice....34

Usingthetouchpad...........36

BehavioroftheUltraNavandanexternal

mouse................37

AddingtheUltraNavicontothesystemtray.37

Touchpanel..............38

Powermanagement............38

Checkingbatterystatus.........39

Usingtheacpoweradapter........39

Chargingthebattery..........40

Maximizingbatterylife..........40

Managingyourbatterypower.......40

Power-savingmodes..........40

Handlingthebattery...........42

Connectingtothenetwork..........43

Ethernetconnections..........43

Wirelessconnections..........43

Usingaprojectororexternaldisplay......51

Changingdisplaysettings........51

Connectingaprojectororexternaldisplay..52

Settingupapresentation.........56

Usingdualdisplays...........57

UsingtheNVIDIAOptimusGraphicsfeature...59

Usingaudiofeatures............59

Usinganintegratedcamera.........60

UsingtheThinkLightfeature.........61

Usingtheopticaldrive...........61

Usingthemediacardreader.........61

InsertinganExpressCard,aashmediacard,

orasmartcard.............62

RemovinganExpressCard,aashmediacard

orasmartcard.............62

Chapter3.Youandyourcomputer..65

Accessibilityandcomfort..........65

Ergonomicinformation..........65

Adjustingyourcomputertotyou.....66

Accessibilityinformation.........67

FullScreenMagnierfunction.......67

Travelingwithyourcomputer.........68

Traveltips...............68

Travelaccessories...........68

©CopyrightLenovo2011

i

Chapter4.Security..........71

Attachingamechanicallock.........71

Usingpasswords..............71

Passwordsandsleep(standby)mode....72

Typingpasswords...........72

Power-onpassword...........72

Harddiskpasswords..........73

Supervisorpassword..........75

Harddisksecurity.............77

Settingthesecuritychip...........78

Usingangerprintreader..........79

Noticeondeletingdatafromyourharddiskdrive

orsolidstatedrive.............82

Usingandunderstandingrewalls.......82

Protectingdataagainstviruses........83

Chapter5.Recoveryoverview....85

Creatingandusingrecoverymedia......85

Creatingrecoverymedia.........86

Usingrecoverymedia..........86

Performingbackupandrecoveryoperations...87

Performingabackupoperation......87

Performingarecoveryoperation......87

UsingtheRescueandRecoveryworkspace...88

Creatingandusingarescuemedium......89

Creatingarescuemedium........89

Usingarescuemedium.........89

Reinstallingpreinstalledapplicationsanddevice

drivers..................90

Solvingrecoveryproblems..........91

Chapter6.Replacingdevices.....93

Staticelectricityprevention..........93

Replacingmemory.............93

Replacingthebackupbattery.........96

Replacingthebattery............97

Replacingtheharddiskdrive.........99

Replacingthekeyboard...........102

ReplacingthemSATAsolidstatedrive.....107

ReplacingthePCIExpressMiniCardforwireless

LAN/WiMAXconnection...........110

ReplacingthePCIExpressMiniCardforWireless

WAN..................119

ReplacingtheSIMcard...........123

Replacingthesolidstatedrive........124

Chapter7.Enhancingyour

computer..............129

FindingThinkPadoptions..........129

UsingtheSerialUltrabaySlim.........129

Replacingthedevice..........129

Performingahotswap..........130

Performingawarmswap.........131

Insertingtheharddiskdriveintothe

adapter................133

Insertingtheharddiskdriveadapterintothe

bay.................135

ThinkPadPortReplicatorSeries3,ThinkPadMini

DockSeries3,ThinkPadMiniDockPlusSeries3,

andThinkPadMiniDockPlusSeries3(170W)..136

Frontview...............136

Rearview...............139

AttachingaThinkPadPortReplicatorSeries3,

ThinkPadMiniDockSeries3,ThinkPadMini

DockPlusSeries3,orThinkPadMiniDock

PlusSeries3(170W)..........142

DetachingaThinkPadPortReplicatorSeries

3,ThinkPadMiniDockSeries3,ThinkPad

MiniDockPlusSeries3,ortheThinkPadMini

DockPlusSeries3(170W)........144

Securityfeature............146

Usingthesystemlockkey........148

Chapter8.Advanced

conguration............149

Installinganewoperatingsystem.......149

Beforeyoubegin............149

InstallingWindows7..........150

InstallingWindowsVista.........151

InstallingWindowsXP..........152

Installingdevicedrivers...........155

Installingthedriverforthe4-in-1MediaCard

Reader................155

InstallingthedriverforUSB3.0......155

InstallingThinkPadMonitorFileforWindows

2000/XP/Vista/7............155

ThinkPadSetup..............157

Congmenu..............158

Dateandtimemenu...........159

Securitymenu.............159

Startupmenu.............160

Restartmenu.............162

ThinkPadSetupitems..........162

UpdatingyoursystemUEFIBIOS.....172

Usingsystemmanagement..........172

Systemmanagement..........172

Settingmanagementfeatures.......173

Chapter9.Preventingproblems..175

Generaltipsforpreventingproblems......175

Makingsuredevicedriversarecurrent.....176

GettingthelatestdriversfromtheWebsite..176

GettingthelatestdriversusingSystem

Update................176

Takingcareofyourcomputer.........177

iiUserGuide

Cleaningthecoverofyourcomputer....178

Chapter10.Troubleshooting

computerproblems.........181

Diagnosingproblems............181

Troubleshooting..............182

Computerstopsresponding.......182

Spillsonthekeyboard..........183

Errormessages............183

Errorswithoutmessages.........185

Beeperrors..............186

Memoryproblems...........187

Networking..............187

Keyboardandotherpointingdevices....191

Displayandmultimediadevices......193

Fingerprintreaderproblems........202

Batteryandpower...........203

Drivesandotherstoragedevices.....206

Softwareproblems...........208

Portsandconnectors..........209

UniversalSerialBusproblems.......209

Adockingstationorportreplicator

problem...............209

Chapter11.Gettingsupport....211

BeforeyoucontactLenovo..........211

Registeryourcomputer.........211

Downloadsystemupdates........211

Recordinformation...........211

Gettinghelpandservice...........212

Usingdiagnosticprograms........212

LenovoSupportWebsite.........212

CallingLenovo.............212

Purchasingadditionalservices........213

AppendixA.Regulatory

information.............215

Wirelessrelatedinformation.........215

LocationoftheUltraConnectwireless

antennas...............216

Locatingwirelessregulatorynotices....217

Exportclassicationnotice..........218

Electronicemissionnotices..........218

FederalCommunicationsCommission

DeclarationofConformity........218

IndustryCanadaClassBemissioncompliance

statement...............218

EuropeanUnion-Compliancetothe

ElectromagneticCompatibilityDirective...218

GermanClassBcompliancestatement...219

KoreaClassBcompliancestatement....219

JapaneseVCCIClassBstatement.....220

Japancompliancestatementforproducts

whichconnecttothepowermainswith

ratedcurrentlessthanorequalto20Aper

phase................220

Lenovoproductserviceinformationfor

Taiwan................220

AppendixB.WEEEandrecycling

statements.............221

EUWEEEstatements............221

Japanrecyclingstatements.........221

BatteryrecyclinginformationforBrazil.....222

BatteryrecyclinginformationforTaiwan.....222

BatteryrecyclinginformationforEuropean

Union..................223

BatteryrecyclinginformationforUnitedStatesand

Canada.................223

AppendixC.Notices.........225

Trademarks................226

©CopyrightLenovo2011

iii

ivUserGuide

Readthisrst

Besuretofollowtheimportanttipsgivenheretocontinuetogetthemostuseandenjoymentoutofyour

computer.Failuretodosomightleadtodiscomfortorinjury,orcauseyourcomputertofail.

Protectyourselffromtheheatthatyourcomputergenerates.

Whenyourcomputeristurnedonorthebatteryischarging,thebase,thepalm

rest,andsomeotherpartsmaybecomehot.Thetemperaturetheyreach

dependsontheamountofsystemactivityandthelevelofchargeinthebattery.

Extendedcontactwithyourbody,eventhroughclothing,couldcause

discomfortorevenaskinburn.

•Avoidkeepingyourhands,yourlap,oranyotherpartofyourbodyin

contactwithahotsectionofthecomputerforanyextendedtime.

•Periodicallytakehandsfromusingthekeyboardbyliftingyourhandsfrom

thepalmrest.

Protectyourselffromtheheatgeneratedbytheacpoweradapter.

Whentheacpoweradapterisconnectedtoanelectricaloutletandyour

computer,itgeneratesheat.

Extendedcontactwithyourbody,eventhroughclothing,maycauseaskin

burn.

•Donotplacetheacpoweradapterincontactwithanypartofyourbody

whileitisinuse.

•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,andmakesurethatthepowerswitchisofforisblinking:

•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.

CAUTION:

Hazardousmovingparts.Keepngersandotherbodypartsaway.

CAUTION:

BeforereplacinganyCRUs,turnoffthecomputerandwaitthreetoveminutestoletthecomputer

coolbeforeopeningthecover.

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.

viiiUserGuide

Extensioncordsandrelateddevices

Ensurethatextensioncords,surgeprotectors,uninterruptiblepowersupplies,andpowerstripsthatyouuse

areratedtohandletheelectricalrequirementsoftheproduct.Neveroverloadthesedevices.Ifpowerstrips

areused,theloadshouldnotexceedthepowerstripinputrating.Consultanelectricianformoreinformation

ifyouhavequestionsaboutpowerloads,powerrequirements,andinputratings.

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.

©CopyrightLenovo2011

ix

Externaldevices

CAUTION:

DonotconnectordisconnectanyexternaldevicecablesotherthanUniversalSerialBus(USB)

cableswhilethecomputerpowerison;otherwise,youmightdamageyourcomputer.T oavoid

possibledamagetoattacheddevices,waitatleastvesecondsafterthecomputerisshutdownto

disconnectexternaldevices.

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.

xUserGuide

Rechargeablebatterynotice

DANGER

Donotattempttodisassembleormodifythebatterypack.Attemptingtodosocancausean

explosion,orliquidleakagefromthebatterypack.Abatterypackotherthantheonespeciedby

Lenovo,oradisassembledormodiedbatterypackisnotcoveredbythewarranty.

Iftherechargeablebatterypackisincorrectlyreplaced,thereisdangerofanexplosion.Thebattery

packcontainsasmallamountofharmfulsubstances.Toavoidpossibleinjury:

•ReplaceonlywithabatteryofthetyperecommendedbyLenovo.

•Keepthebatterypackawayfromre.

•Donotexposeittowaterorrain.

•Donotattempttodisassembleit.

•Donotshort-circuitit.

•Keepitawayfromchildren.

•Donotdropthebatterypack.

Donotputthebatterypackintrashthatisdisposedofinlandlls.Whendisposingofthebattery,

complywithlocalordinancesorregulations.

Thebatterypackshouldbestoredatroomtemperature,chargedtoapproximately30to50%

ofcapacity.Werecommendthatbatterypackbechargedaboutonceperyeartoprevent

overdischarge.

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.

©CopyrightLenovo2011

xi

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).

xiiUserGuide

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.

Lasercompliancestatement

CAUTION:

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

installed,notethefollowing:

•Donotremovethecovers.Removingthecoversofthelaserproductcouldresultinexposureto

hazardouslaserradiation.Therearenoserviceablepartsinsidethedevice.

•Useofcontrolsoradjustmentsorperformanceofproceduresotherthanthosespeciedherein

mightresultinhazardousradiationexposure.

©CopyrightLenovo2011

xiii

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

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:

xivUserGuide

DANGER

Donotconnectphonelinewhileusingtabletmode.

NoticeforusersintheU.S.A.

ManyPCproductsandaccessoriescontaincords,cablesorwires,suchaspowercordsorcordstoconnect

theaccessorytoaPC.Ifthisproducthassuchacord,cableorwire,thenthefollowingwarningapplies:

WARNING

Handlingthecordonthisproductorcordsassociatedwithaccessoriessoldwiththisproductwillexpose

youtolead,achemicalknowntotheStateofCaliforniatocausecancer,andbirthdefectsorother

reproductiveharm.Washhandsafterhandling.

Savetheseinstructions.

xv

xviUserGuide

Chapter1.Productoverview

Thischapterprovidesinformationaboutthelocationsofconnectors,locatingimportantproductinformation,

computerfeatures,specications,operatingenvironment,andpreinstalledsoftwareprograms.

Thischaptercontainsthefollowingtopics:

•“Locatingcomputercontrols,connectors,andindicators”onpage1

•“Locatingimportantproductinformation”onpage13

•“Features”onpage15

•“Specications”onpage17

•“Operatingenvironment”onpage17

•“ThinkVantageTechnologiesandsoftware”onpage18

Locatingcomputercontrols,connectors,andindicators

Thissectionintroducesyoutothehardwarefeaturesofyourcomputer,andthengivesyouthebasic

informationyou'llneedtostarttakingadvantageofitsfunctions.

•“Frontview”onpage2

•“Right-sideview”onpage5

•“Left-sideview”onpage6

•“RearView”onpage9

•“Bottomview”onpage7

•“Statusindicators”onpage10

1

Frontview

Figure1.ThinkPadT420s/T420sifrontview

1Computerdisplay

2Powerswitch

3ThinkVantagebutton4TrackPointbuttons

5TrackPointpointingstick6Volumecontrolbuttons

7Systemandpower-statusindicators8UltraConnect™wirelessantennas(left)

9Built-inmicrophone(left)

10Integratedcamera

11ThinkLight

12Built-inmicrophone(right)

13UltraConnect™wirelessantennas(right)14Built-instereospeaker(right)

15ForwardandBackkeys16Fingerprintreader

17Bluetoothantenna18Touchpad

19Touchpadbuttons20Fnkey

21CapsLockindicator22Built-instereospeaker(left)

1Computerdisplay

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

Fordetails,refertotheinstructionsin“Changingdisplaysettings”onpage51

.

2Powerswitch

Usethepowerswitchtoturnonthecomputer.Toturnoffyourcomputer,usetheStartmenushutdown

options.

Ifyoucannotturnoffthecomputerbythismethod,pressandholdthepowerswitchfor2seconds.

2UserGuide

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