Lenovo ThinkPad T540p User manual

UserGuide
ThinkPadT540p,W540,andW541

Note:Beforeusingthisinformationandtheproductitsupports,besuretoreadandunderstandthefollowing
•Safety,Warranty,andSetupGuide
•RegulatoryNotice
•“Importantsafetyinformation”onpagevi
•AppendixE“Notices”onpage171
ThelatestSafety,Warranty,andSetupGuideandtheRegulatoryNoticeareavailableontheLenovo®
SupportWebsiteat
http//www.lenovo.com/UserManual
SixthEdition(July2015)
©CopyrightLenovo2013,2015
LIMITEDANDRESTRICTEDRIGHTSNOTICEIfdataorsoftwareisdeliveredpursuantaGeneralServicesAdministration
“GSA”contract,use,reproduction,ordisclosureissubjecttorestrictionssetforthinContractNo.GS-35F-05925.

Contents
Readthisfirstv
Importantsafetyinformation..........vi
Conditionsthatrequireimmediateaction..vii
Serviceandupgrades..........vii
Powercordsandpoweradapters.....viii
Extensioncordsandrelateddevices.....ix
Plugsandoutlets.............ix
Powersupplystatement..........ix
Externaldevices.............x
Generalbatterynotice...........x
Rechargeablebatterynotice........x
Lithiumcoin-cellbatterynotice.......xi
Heatandproductventilation........xi
Electricalcurrentsafetyinformation....xii
Lasercompliancestatement.......xiii
Liquidcrystaldisplay(LCD)notice.....xiii
Usingheadphonesorearphones......xiv
Additionalsafetyinformation.......xiv
Chapter1Productoverview1
Locatingcomputercontrols,connectors,and
indicators..................1
Frontview................1
Right-sideview..............3
Left-sideview..............4
Bottomview...............6
Rearview................7
Statusindicators.............8
Locatingimportantproductinformation......9
Machinetypeandmodel..........9
FCCIDandICCertificationnumber.....9
LabelsfortheWindowsoperatingsystems..10
Features.................11
Specifications...............12
Operatingenvironment...........13
Lenovoprograms.............14
AccessingLenovoprograms.......14
AnintroductiontoLenovoprograms....14
Chapter2Usingyourcomputer17
Registeringyourcomputer..........17
Frequentlyaskedquestions.........17
GettinghelpabouttheWindowsoperating
system..................19
Specialkeys...............19
ThinkPadpointingdevice..........22
UsingtheThinkPadpointingdevice....22
Trackpadtouchgestures.........27
CustomizingtheThinkPadpointingdevice..28
ReplacingthecapoftheTrackPointpointing
stick.................28
Powermanagement............29
Checkingthebatterystatus........29
Usingtheacpoweradapter........29
Chargingthebattery..........30
Maximizingthebatterylife........30
Managingthepowerplans........30
Power-savingmodes..........31
Handlingthebattery...........32
Connectingtothenetwork..........33
Ethernetconnections..........33
Wirelessconnections..........33
Usinganexternaldisplay..........37
Connectinganexternaldisplay......37
Choosingadisplaymode........38
Changingdisplaysettings........39
UsingtheNVIDIAOptimusGraphicsfeature...39
Usingthecolorsensor...........39
Usingaudiofeatures............40
Usingthecamera.............40
Usingtheopticaldrive...........41
UsinganExpressCard,aflashmediacard,ora
smartcard................41
InstallinganExpressCard,aflashmediacard,
orasmartcard.............42
RemovinganExpressCard,aflashmedia
card,orasmartcard..........43
Chapter3Youandyourcomputer45
Accessibilityandcomfort..........45
Ergonomicinformation..........45
Comfort...............46
Accessibilityinformation.........46
Travelingwithyourcomputer.........49
Traveltips...............49
Travelaccessories...........49
Chapter4Security51
Usingpasswords..............51
Typingpasswords...........51
Power-onpassword...........51
Supervisorpassword..........52
Harddiskpasswords..........53
Harddisksecurity.............55
©CopyrightLenovo2013,2015i

Settingthesecuritychip...........56
Usingthefingerprintreader..........57
Noticeondeletingdatafromyourharddiskdrive
orsolid-statedrive.............60
Usingfirewalls...............61
Protectingdataagainstviruses........61
Chapter5Recoveryoverview63
RecoveryoverviewfortheWindows7operating
system..................63
Creatingandusingarecoverymedia....63
Performingbackupandrecoveryoperations.64
UsingtheRescueandRecoveryworkspace.65
Creatingandusingarescuemedium....66
Reinstallingpreinstalledprogramsanddevice
drivers................67
Solvingrecoveryproblems........67
RecoveryoverviewfortheWindows8and
Windows8.1operatingsystems........68
Refreshingyourcomputer........68
Resettingyourcomputertothefactorydefault
settings................68
Usingtheadvancedstartupoptions....69
RecoveringyouroperatingsystemifWindows
8orWindows8.1failstostart.......69
Creatingandusingrecoverymedia.....70
RecoveryoverviewfortheWindows10operating
system..................71
Resettingyourcomputer.........71
Usingadvancedstartupoptions......71
RecoveringyouroperatingsystemifWindows
10failstostart.............72
CreatingandusingarecoveryUSBdrive..72
Chapter6Replacingdevices73
Staticelectricityprevention..........73
Replacingthebatterypack..........73
InstallingorreplacingtheSIMcard.......75
ReplacingtheUltrabaydevice........76
Replacingamemorymodule.........79
Replacingtheharddiskdriveorsolid-statedrive.81
ReplacingawirelessLANcard........84
ReplacingawirelessWANcard........87
Replacingthecoin-cellbattery........91
Replacingthekeyboard...........93
Chapter7Enhancingyour
computer99
FindingThinkPadoptions..........99
ThinkPaddockingstations..........99
Locatingcontrolsandconnectorsonthe
ThinkPaddockingstations........99
AttachingaThinkPaddockingstation....104
DetachingaThinkPaddockingstation...105
Connectingexternaldisplaystoadocking
station................106
Securityfeatures............107
Chapter8Advanced
configuration109
Installinganewoperatingsystem.......109
InstallingtheWindows7operatingsystem..109
InstallingtheWindows8orWindows8.1
operatingsystem............110
Installingdevicedrivers...........111
UsingtheThinkPadSetupprogram......111
Mainmenu..............112
Configmenu..............112
DateandTimemenu..........118
Securitymenu.............118
Startupmenu.............125
Restartmenu.............126
UpdatingyoursystemUEFIBIOS.....126
Usingsystemmanagement..........127
Settingmanagementfeatures.......128
Chapter9Preventingproblems129
Generaltipsforpreventingproblems......129
Makingsuredevicedriversarecurrent.....130
Takingcareofyourcomputer.........131
Cleaningthecoverofyourcomputer....132
Chapter10Troubleshooting
computerproblems135
Diagnosingproblems............135
Troubleshooting..............135
Computerstopsresponding.......135
Spillsonthekeyboard..........136
Errormessages............136
Errorswithoutmessages.........138
Beeperrors..............139
Memorymoduleproblems........139
Networkingproblems..........139
Problemswiththekeyboardandotherpointing
devices................141
Problemswiththedisplayandmultimedia
devices................142
Fingerprintreaderproblems........146
Batteryandpowerproblems.......146
Problemswithdrivesandotherstorage
devices................148
Asoftwareproblem...........150
Problemswithportsandconnectors....150
Chapter11Gettingsupport151
iiUserGuide

BeforeyoucontactLenovo..........151
Gettinghelpandservice...........151
Usingdiagnosticprograms........152
LenovoSupportWebsite.........152
CallingLenovo.............152
Purchasingadditionalservices........153
AppendixARegulatory
information155
LocationoftheUltraConnectwirelessantennas..155
Wirelessrelatedinformation.........156
Wireless-radiocomplianceinformation...157
Locatingwirelessregulatorynotices....157
Certificationrelatedinformation........158
Exportclassificationnotice..........158
Electronicemissionnotices..........158
FederalCommunicationsCommission
DeclarationofConformity........158
IndustryCanadaClassBemissioncompliance
statement...............159
EuropeanUnion-Compliancetothe
ElectromagneticCompatibilityDirective...159
GermanClassBcompliancestatement...159
KoreaClassBcompliancestatement....160
JapanVCCIClassBcompliancestatement..160
Japancompliancestatementforproducts
whichconnecttothepowermainswith
ratedcurrentlessthanorequalto20Aper
phase................160
Japannoticeforacpowercord......160
Lenovoproductserviceinformationfor
Taiwan................160
Eurasiancompliancemark..........160
Brazilaudionotice.............160
Mexicoregulatorynotice...........160
AppendixBWEEEandrecycling
statements161
ImportantWEEEinformation.........161
RecyclinginformationforChina........161
Japanrecyclingstatements.........161
RecyclinginformationforBrazil........162
BatteryrecyclinginformationfortheEuropean
Union..................163
BatteryrecyclinginformationforTaiwan.....163
BatteryrecyclinginformationfortheUnitedStates
andCanada................163
AppendixCRestrictionofHazardous
SubstancesDirective(RoHS)165
EuropeanUnionRoHS...........165
ChinaRoHS................166
IndiaRoHS................166
TurkishRoHS...............167
UkraineRoHS...............167
AppendixDENERGYSTARmodel
information169
AppendixENotices171
Trademarks................172
©CopyrightLenovo2013,2015iii

ivUserGuide

Readthisfirst
Besuretofollowtheimportanttipsgivenheretogetthemostuseandenjoymentoutofyourcomputer.
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,keepliquidsawayfromyour
computer.
Protectthecablesfrombeingdamaged
Applyingstrongforcetocablesmaydamageorbreakthem.
Routecommunicationlines,orthecablesofanacpoweradapter,amouse,a
keyboard,aprinter,oranyotherelectronicdevice,sothattheycannotbewalked
on,trippedover,pinchedbyyourcomputerorotherobjects,orinanyway
subjectedtotreatmentthatcouldinterferewiththeoperationofyourcomputer.
©CopyrightLenovo2013,2015v

Protectyourcomputeranddatawhenmovingit
Beforemovingacomputerequippedwithaharddiskdrive,dooneofthe
following,andmakesurethatthepowerswitchisofforisblinking
•Turnitoff.
•Putitinsleepmode.
•Putitinhibernationmode.
Thiswillhelptopreventdamagetothecomputer,andpossiblelossofdata.
Handleyourcomputergently
Donotdrop,bump,scratch,twist,hit,vibrate,push,orplaceheavyobjectson
yourcomputer,display,orexternaldevices.
Carryyourcomputercarefully
•Useaqualitycarryingcasethatprovidesadequatecushioningandprotection.
•Donotpackyourcomputerinatightlypackedsuitcaseorbag.
•Beforeputtingyourcomputerinacarryingcase,makesurethatitisoff,insleep
mode,orinhibernationmode.Donotputacomputerinacarryingcasewhileit
isturnedon.
Importantsafetyinformation
Note:Readtheimportantsafetyinformationfirst.
Thisinformationcanhelpyousafelyuseyournotebookcomputer.Followandretainallinformationincluded
withyourcomputer.Theinformationinthisdocumentdoesnotalterthetermsofyourpurchaseagreement
ortheLenovo®LimitedWarranty.Formoreinformation,see“WarrantyInformation”intheSafety,Warranty,
andSetupGuidethatcomeswithyourcomputer.
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
ProductscanbecomedamagedduetomisuseorneglectSomeproductdamageisseriousenough
thattheproductshouldnotbeusedagainuntilithasbeeninspectedand,ifnecessary,repairedby
anauthorizedservicer
Aswithanyelectronicdevice,paycloseattentiontotheproductwhenitisturnedonOnveryrare
occasions,youmightnoticeanodororseeapuffofsmokeorsparksventfromyourproductOryou
mighthearsoundslikepopping,crackingorhissingTheseconditionsmightmerelymeanthatan
internalelectroniccomponenthasfailedinasafeandcontrolledmannerOr,theymightindicate
apotentialsafetyissueHowever,donottakerisksorattempttodiagnosethesituationyourself
ContacttheCustomerSupportCenterforfurtherguidanceForalistofServiceandSupportphone
numbers,seethefollowingWebsite:
http://wwwlenovocom/support/phone
Frequentlyinspectyourcomputeranditscomponentsfordamageorwearorsignsofdanger
Ifyouhaveanyquestionabouttheconditionofacomponent,donotusetheproductContact
theCustomerSupportCenterortheproductmanufacturerforinstructionsonhowtoinspectthe
productandhaveitrepaired,ifnecessary
Intheunlikelyeventthatyounoticeanyofthefollowingconditions,orifyouhaveanysafety
concernswithyourproduct,stopusingtheproductandunplugitfromthepowersourceand
telecommunicationlinesuntilyoucanspeaktotheCustomerSupportCenterforfurtherguidance
•Powercords,plugs,poweradapters,extensioncords,surgeprotectors,orpowersuppliesthatare
cracked,broken,ordamaged.
•Signsofoverheating,smoke,sparks,orfire.
•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.
Serviceandupgrades
DonotattempttoserviceaproductyourselfunlessinstructedtodosobytheCustomerSupportCenteror
yourdocumentation.OnlyuseaServiceProviderwhoisapprovedtorepairyourparticularproduct.
Note:Somecomputerpartscanbeupgradedorreplacedbythecustomer.Upgradestypicallyare
referredtoasoptions.ReplacementpartsapprovedforcustomerinstallationarereferredtoasCustomer
ReplaceableUnits,orCRUs.Lenovoprovidesdocumentationwithinstructionswhenitisappropriatefor
customerstoinstalloptionsorreplaceCRUs.Youmustcloselyfollowallinstructionswheninstallingor
replacingparts.TheOffstateofapowerindicatordoesnotnecessarilymeanthatvoltagelevelsinsidea
productarezero.Beforeyouremovethecoversfromaproductequippedwithapowercord,alwaysmake
surethatthepoweristurnedoffandthattheproductisunpluggedfromanypowersource.Ifyouhave
anyquestionsorconcerns,contacttheCustomerSupportCenter.
©CopyrightLenovo2013,2015vii

Althoughtherearenomovingpartsinyourcomputerafterthepowercordhasbeendisconnected,the
followingwarningsarerequiredforyoursafety.
CAUTION:
HazardousmovingpartsKeepfingersandotherbodypartsaway
CAUTION:
BeforereplacinganyCRUs,turnoffthecomputerandwaitthreetofiveminutestoletthecomputer
coolbeforeopeningthecover
Powercordsandpoweradapters
DANGER
Useonlythepowercordsandpoweradapterssuppliedbytheproductmanufacturer
ThepowercordsshallbesafetyapprovedForGermany,itshallbeH05VV-F,3G,075mm2,or
betterForothercountries,thesuitabletypesshallbeusedaccordingly
NeverwrapapowercordaroundapoweradapterorotherobjectDoingsocanstressthecordin
waysthatcancausethecordtofray,crack,orcrimpThiscanpresentasafetyhazard
Alwaysroutepowercordssothattheywillnotbewalkedon,trippedover,orpinchedbyobjects
ProtectpowercordsandpoweradaptersfromliquidsForinstance,donotleaveyourpowercord
orpoweradapternearsinks,tubs,toilets,oronfloorsthatarecleanedwithliquidcleansers
Liquidscancauseashortcircuit,particularlyifthepowercordorpoweradapterhasbeenstressed
bymisuseLiquidsalsocancausegradualcorrosionofpowercordterminalsand/ortheconnector
terminalsonapoweradapter,whichcaneventuallyresultinoverheating
Alwaysconnectpowercordsandsignalcablesinthecorrectorderandensurethatallpowercord
connectorsaresecurelyandcompletelypluggedintoreceptacles
Donotuseanypoweradapterthatshowscorrosionattheacinputpinsorshowssignsof
overheating(suchasdeformedplastic)attheacinputpinsoranywhereonthepoweradapter
Donotuseanypowercordswheretheelectricalcontactsoneitherendshowsignsofcorrosionor
overheatingorwherethepowercordappearstohavebeendamagedinanyway
viiiUserGuide

Extensioncordsandrelateddevices
Ensurethatextensioncords,surgeprotectors,uninterruptiblepowersupplies,andpowerstripsthatyouuse
areratedtohandletheelectricalrequirementsoftheproduct.Neveroverloadthesedevices.Ifpowerstrips
areused,theloadshouldnotexceedthepowerstripinputrating.Consultanelectricianformoreinformation
ifyouhavequestionsaboutpowerloads,powerrequirements,andinputratings.
Plugsandoutlets
DANGER
Ifareceptacle(poweroutlet)thatyouintendtousewithyourcomputerequipmentappearstobe
damagedorcorroded,donotusetheoutletuntilitisreplacedbyaqualifiedelectrician
DonotbendormodifytheplugIftheplugisdamaged,contactthemanufacturertoobtain
areplacement
Donotshareanelectricaloutletwithotherhomeorcommercialappliancesthatdrawlargeamounts
ofelectricity;otherwise,unstablevoltagemightdamageyourcomputer,data,orattacheddevices
Someproductsareequippedwithathree-prongedplugThisplugfitsonlyintoagrounded
electricaloutletThisisasafetyfeatureDonotdefeatthissafetyfeaturebytryingtoinsertitinto
anon-groundedoutletIfyoucannotinserttheplugintotheoutlet,contactanelectricianforan
approvedoutletadapterortoreplacetheoutletwithonethatenablesthissafetyfeatureNever
overloadanelectricaloutletTheoverallsystemloadshouldnotexceed80percentofthebranch
circuitratingConsultanelectricianformoreinformationifyouhavequestionsaboutpowerloads
andbranchcircuitratings
Besurethatthepoweroutletyouareusingisproperlywired,easilyaccessible,andlocatedclose
totheequipmentDonotfullyextendpowercordsinawaythatwillstressthecords
Besurethatthepoweroutletprovidesthecorrectvoltageandcurrentfortheproductyouare
installing
Carefullyconnectanddisconnecttheequipmentfromtheelectricaloutlet
Powersupplystatement
DANGER
Neverremovethecoveronapowersupplyoranypartthathasthefollowinglabelattached
Hazardousvoltage,current,andenergylevelsarepresentinsideanycomponentthathasthislabel
attachedTherearenoserviceablepartsinsidethesecomponentsIfyoususpectaproblemwith
oneoftheseparts,contactaservicetechnician
©CopyrightLenovo2013,2015ix

Externaldevices
CAUTION:
DonotconnectordisconnectanyexternaldevicecablesotherthanUSBand1394cableswhilethe
computerpowerison;otherwise,youmightdamageyourcomputerToavoidpossibledamageto
attacheddevices,waitatleastfivesecondsafterthecomputerisshutdowntodisconnectexternal
devices
Generalbatterynotice
DANGER
PersonalcomputersmanufacturedbyLenovocontainacoin-cellbatterytoprovidepowerto
thesystemclockInaddition,manymobileproducts,suchasnotebookcomputers,utilizea
rechargeablebatterypacktoprovidesystempowerwheninportablemodeBatteriessuppliedby
Lenovoforusewithyourproducthavebeentestedforcompatibilityandshouldonlybereplaced
withapprovedparts
NeverattempttoopenorserviceanybatteryDonotcrush,puncture,orincineratebatteriesor
shortcircuitthemetalcontactsDonotexposethebatterytowaterorotherliquidsOnlyrecharge
thebatterypackstrictlyaccordingtoinstructionsincludedintheproductdocumentation
Batteryabuseormishandlingcancausethebatterytooverheat,whichcancausegassesorflame
to“vent”fromthebatterypackorcoin-cellbatteryIfyourbatteryisdamaged,orifyounoticeany
dischargefromyourbatteryorthebuildupofforeignmaterialsonthebatteryleads,stopusingthe
batteryandobtainareplacementfromthebatterymanufacturer
BatteriescandegradewhentheyareleftunusedforlongperiodsoftimeForsomerechargeable
batteries(particularlyLithiumIonbatteries),leavingabatteryunusedinadischargedstatecould
increasetheriskofabatteryshortcircuit,whichcouldshortenthelifeofthebatteryandalsocan
poseasafetyhazardDonotletrechargeableLithium-Ionbatteriescompletelydischargeorstore
thesebatteriesinadischargedstate
Rechargeablebatterynotice
DANGER
DonotattempttodisassembleormodifythebatterypackAttemptingtodosocancausean
explosion,orliquidleakagefromtheAotherthantheonespecifiedbyLenovo,oradisassembled
ormodifiedisnotcoveredbythewarranty
Iftherechargeablebatterypackisincorrectlyreplaced,thereisdangerofanexplosionThebattery
packcontainsasmallamountofharmfulsubstancesToavoidpossibleinjury:
•ReplaceonlywithabatteryofthetyperecommendedbyLenovo
•Keepthebatterypackawayfromfire
•Donotexposeittowaterorrain
•Donotattempttodisassembleit
•Donotshort-circuitit
•Keepitawayfromchildren
•Donotdropthebatterypack
xUserGuide

DonotputthebatterypackintrashthatisdisposedofinlandfillsWhendisposingofthebattery,
complywithlocalordinancesorregulations
Thebatterypackshouldbestoredatroomtemperature,chargedtoapproximately30to50%
ofcapacityWerecommendthatbatterypackbechargedaboutonceperyeartoprevent
overdischarge
Lithiumcoin-cellbatterynotice
DANGER
Dangerofexplosionifbatteryisincorrectlyreplaced
Whenreplacingthelithiumcoin-cellbattery,useonlythesameoranequivalenttypethatis
recommendedbythemanufacturerThebatterycontainslithiumandcanexplodeifnotproperly
used,handled,ordisposedof
Donot:
•Throworimmerseintowater
•Heattomorethan100°C(212°F)
•Repairordisassemble
Disposeofthebatteryasrequiredbylocalordinancesorregulations
ThefollowingstatementappliestousersinthestateofCalifornia,USA
CaliforniaPerchlorateInformation:
Productscontainingmanganesedioxidelithiumcoin-cellbatteriesmaycontainperchlorate
PerchlorateMaterial-specialhandlingmayapply,See
wwwdtsccagov/hazardouswaste/perchlorate
Heatandproductventilation
DANGER
Computers,acpoweradapters,andmanyaccessoriescangenerateheatwhenturnedonandwhen
batteriesarechargingNotebookcomputerscangenerateasignificantamountofheatduetotheir
compactsizeAlwaysfollowthesebasicprecautions:
•Whenyourcomputeristurnedonorthebatteryischarging,thebase,thepalmrest,andsome
otherpartsmaybecomehotAvoidkeepingyourhands,yourlap,oranyotherpartofyour
bodyincontactwithahotsectionofthecomputerforanyextendedlengthoftimeWhenyou
usethekeyboard,avoidkeepingyourpalmsonthepalmrestforaprolongedperiodoftime
YourcomputergeneratessomeheatduringnormaloperationTheamountofheatdependson
theamountofsystemactivityandthebatterychargelevelExtendedcontactwithyourbody,
eventhroughclothing,couldcausediscomfortorevenaskinburnPeriodicallytakebreaks
fromusingthekeyboardbyliftingyourhandsfromthepalmrest;andbecarefulnottouse
thekeyboardforanyextendedlengthoftime
©CopyrightLenovo2013,2015xi

•Donotoperateyourcomputerorchargethebatterynearflammablematerialsorinexplosive
environments
•Ventilationslots,fansand/orheatsinksareprovidedwiththeproductforsafety,comfort,and
reliableoperationThesefeaturesmightinadvertentlybecomeblockedbyplacingtheproducton
abed,sofa,carpet,orotherflexiblesurfaceNeverblock,cover,ordisablethesefeatures
•Whentheacpoweradapterisconnectedtoanelectricaloutletandyourcomputer,itgenerates
heatDonotplacetheadapterincontactwithanypartofyourbodywhileusingitNeverusethe
acpoweradaptertowarmyourbodyExtendedcontactwithyourbody,eventhroughclothing,
maycauseaskinburn
Foryoursafety,alwaysfollowthesebasicprecautionswithyourcomputer:
•Keepthecoverclosedwheneverthecomputerispluggedin
•Regularlyinspecttheoutsideofthecomputerfordustaccumulation
•RemovedustfromventsandanyperforationsinthebezelMorefrequentcleaningsmightbe
requiredforcomputersindustyorhigh-trafficareas
•Donotrestrictorblockanyventilationopenings
•Donotoperateyourcomputerinsidefurniture,asthismightincreasetheriskofoverheating
•Airflowtemperaturesintothecomputershouldnotexceed35°C(95°F)
Electricalcurrentsafetyinformation
DANGER
Electriccurrentfrompower,telephone,andcommunicationcablesishazardous
Toavoidashockhazard:
•Donotuseyourcomputerduringalightningstorm
•Donotconnectordisconnectanycablesorperforminstallation,maintenance,orreconfiguration
ofthisproductduringanelectricalstorm
•Connectallpowercordstoaproperlywiredandgroundedelectricaloutlet
•Connecttoproperlywiredoutletsanyequipmentthatwillbeattachedtothisproduct
•Wheneverpossible,useonehandonlytoconnectordisconnectsignalcables
•Neverturnonanyequipmentwhenthereisevidenceoffire,water,orstructuraldamage
•Disconnecttheattachedpowercords,batterypack,andallthecablesbeforeyouopenthe
devicecovers,unlessinstructedotherwiseintheinstallationandconfigurationprocedures
•DonotuseyourcomputeruntilallinternalpartsenclosuresarefastenedintoplaceNeveruse
thecomputerwheninternalpartsandcircuitsareexposed
xiiUserGuide

DANGER
Connectanddisconnectcablesasdescribedinthefollowingprocedureswheninstalling,moving,
oropeningcoversonthisproductorattacheddevices
Toconnect:
1TurneverythingOFF
2First,attachallcablestodevices
3Attachsignalcablestoconnectors
4Attachpowercordstooutlets
5TurndevicesON
Todisconnect:
1TurneverythingOFF
2First,removepowercordsfromoutlets
3Removesignalcablesfromconnectors
4Removeallcablesfromdevices
Thepowercordmustbedisconnectedfromthewalloutletorreceptaclebeforeinstallingallother
electricalcablesconnectedtothecomputer
Thepowercordmaybereconnectedtothewalloutletorreceptacleonlyafterallotherelectrical
cableshavebeenconnectedtothecomputer
Lasercompliancestatement
CAUTION:
Whenlaserproducts(suchasCD-ROMs,DVDdrives,fiberopticdevices,ortransmitters)are
installed,notethefollowing:
•DonotremovethecoversRemovingthecoversofthelaserproductcouldresultinexposureto
hazardouslaserradiationTherearenoserviceablepartsinsidethedevice
•Useofcontrolsoradjustmentsorperformanceofproceduresotherthanthosespecifiedherein
mightresultinhazardousradiationexposure
DANGER
SomelaserproductscontainanembeddedClass3AorClass3BlaserdiodeNotethefollowing
LaserradiationwhenopenDonotstareintothebeam,donotviewdirectlywithoptical
instruments,andavoiddirectexposuretothebeam
Liquidcrystaldisplay(LCD)notice
CAUTION:
TheLCDismadeofglass,androughhandlingordroppingthecomputercancausetheLCDtobreak
IftheLCDbreaksandtheinternalfluidgetsintoyoureyesoronyourhands,immediatelywash
theaffectedareaswithwaterforatleast15minutes;ifanysymptomsarepresentafterwashing,
getmedicalcare
Note:Forproductswithmercury-containingfluorescentlamps(forexample,non-LED),thefluorescentlamp
intheliquidcrystaldisplay(LCD)containsmercury;disposeofaccordingtolocal,state,orfederallaws.
©CopyrightLenovo2013,2015xiii

Usingheadphonesorearphones
Ifyourcomputerhasbothaheadphoneconnectorandanaudio-outconnector,alwaysusetheheadphone
connectorforheadphones(alsocalledaheadset)orearphones.
CAUTION:
ExcessivesoundpressurefromearphonesandheadphonescancausehearinglossAdjustmentof
theequalizertomaximumincreasestheearphoneandheadphoneoutputvoltageandthesound
pressurelevelTherefore,toprotectyourhearing,adjusttheequalizertoanappropriatelevel
Excessiveuseofheadphonesorearphonesforalongperiodoftimeathighvolumecanbedangerousifthe
outputoftheheadphoneorearphoneconnectorsdonotcomplywithspecificationsofEN50332-2.The
headphoneoutputconnectorofyourcomputercomplieswithEN50332-2Subclause7.Thisspecification
limitsthecomputer’smaximumwidebandtrueRMSoutputvoltageto150mV.Tohelpprotectagainst
hearingloss,ensurethattheheadphonesorearphonesyouusealsocomplywithEN50332-2(Clause7
limits)forawidebandcharacteristicvoltageof75mV.UsingheadphonesthatdonotcomplywithEN
50332-2canbedangerousduetoexcessivesoundpressurelevels.
IfyourLenovocomputercamewithheadphonesorearphonesinthepackage,asaset,thecombinationof
theheadphonesorearphonesandthecomputeralreadycomplieswiththespecificationsofEN50332-1.
Ifdifferentheadphonesorearphonesareused,ensurethattheycomplywithEN50332-1(Clause6.5
LimitationValues).UsingheadphonesthatdonotcomplywithEN50332-1canbedangerousdueto
excessivesoundpressurelevels.
Additionalsafetyinformation
Plasticbagnotice
DANGER
PlasticbagscanbedangerousKeepplasticbagsawayfrombabiesandchildrentoavoiddanger
ofsuffocation
Glasspartsnotice
CAUTION:
SomepartsofyourproductmaybemadeofglassThisglasscouldbreakiftheproductisdropped
onahardsurfaceorreceivesasubstantialimpactIfglassbreaks,donottouchorattempttoremove
itStopusingyourproductuntiltheglassisreplacedbytrainedservicepersonnel
Chokinghazardnotice
CHOKINGHAZARD–Productcontainssmallparts.
Keepawayfromchildrenunderthreeyears.
PolyvinylChloride(PVC)cableandcordnotice
Manypersonalcomputerproductsandaccessoriescontaincords,cablesorwires,suchaspowercordsor
cordstoconnecttheaccessorytoapersonalcomputer.Ifthisproducthassuchacord,cableorwire,then
thefollowingwarningapplies
xivUserGuide

WARNING:Handlingthecordonthisproductorcordsassociatedwithaccessoriessoldwiththisproduct
willexposeyoutolead,achemicalknowntotheStateofCaliforniatocausecancer,andbirthdefectsor
otherreproductiveharm.Washhandsafterhandling.
©CopyrightLenovo2013,2015xv

xviUserGuide

Chapter1Productoverview
Thischapterprovidesinformationaboutconnectorlocations,importantproductlabels,computerfeatures,
specifications,operatingenvironment,andpreinstalledprograms.
•“Locatingcomputercontrols,connectors,andindicators”onpage1
•“Locatingimportantproductinformation”onpage9
•“Features”onpage11
•“Specifications”onpage12
•“Operatingenvironment”onpage13
•“Lenovoprograms”onpage14
Locatingcomputercontrols,connectors,andindicators
Thissectionintroducesthecomputerhardwarefeaturestogiveyouthebasicinformationyouneedto
startusingthecomputer.
Frontview
Figure1.ThinkPadT540pandW540frontiew
©CopyrightLenovo2013,20151

Figure2.ThinkPadW541frontiew
1Camera(onsomemodels)6Colorsensor(onsomemodels)
2Microphones7TrackPoint®pointingstick
3Powerbutton8NFClogo(onsomemodels)
4Numerickeypad9ThinkPad®trackpad
5Fingerprintreader(onsomemodels)10TrackPointbuttons
1Camera(onsomemodels)
Usethecameratotakepicturesorholdavideoconference.Formoreinformation,see“Usingthecamera”
onpage40.
2Microphones
Themicrophonescapturesoundandvoicewhenusedwithaprogramcapableofhandlingaudio.
3Powerbutton
Usethepowerbuttontoturnonthecomputer.
Toturnoffthecomputer,usetheStartmenushutdownoptionontheMicrosoft®Windows®7operating
system.FortheWindows8andWindows8.1operatingsystems,movethecursortothetop-rightor
bottom-rightcornerofthescreentobringupthecharms.ThenclickSettings➙Power➙Shutdown.
Ifyourcomputerstopsrespondingandyoucannotturnitoff,pressandholdthepowerbuttonforfour
secondsormore.Ifthecomputerstillisnotresponding,removetheacpoweradapterandthebattery
toresetthecomputer.
Youalsocandefinewhatthepowerbuttondoes.Forexample,bypressingthepowerbutton,youcanturn
offthecomputerorputthecomputerintosleeporhibernationmode.Tochangewhatthepowerbutton
does,dothefollowing
1.GotoControlPanel,thenchangetheviewofControlPanelfromCategorytoLargeiconsorSmallicons.
2.ClickPowerOptions➙Choosewhatthepowerbuttonsdo.
2UserGuide