Lenovo ThinkPad T540p User manual

UserGuide
ThinkPadT540p,W540,andW541

Note:Beforeusingthisinformationandtheproductitsupports,besuretoreadandunderstandthefollowing
•Safety,Warranty,andSetupGuide
•RegulatoryNotice
•“Importantsafetyinformation”onpagevi
•AppendixE“Notices”onpage175
ThelatestSafety,Warranty,andSetupGuideandtheRegulatoryNoticeareavailableontheLenovo®
SupportWebsiteat
http//www.lenovo.com/UserManual
FourthEdition(January2015)
©CopyrightLenovo2013,2015.
LIMITEDANDRESTRICTEDRIGHTSNOTICEIfdataorsoftwareisdeliveredpursuantaGeneralServicesAdministration
“GSA”contract,use,reproduction,ordisclosureissubjecttorestrictionssetforthinContractNo.GS-35F-05925.

Contents
eadthisfirst..............v
Importantsafetyinformation..........vi
Conditionsthatrequireimmediateaction..vii
Safetyguidelines............vii
Chapter1.Productoverview......1
Locatingcomputercontrols,connectors,and
indicators..................1
Frontview................1
Right-sideview..............3
Left-sideview..............5
Bottomview...............7
Rearview................8
Statusindicators.............8
Locatingimportantproductinformation.....10
Machinetypeandmodel.........10
FCCIDandICCertificationnumber....10
CertificateofAuthenticity.........11
GenuineMicrosoftlabel.........12
Features.................12
Specifications...............14
Operatingenvironment...........14
Lenovoprograms.............15
AccessingLenovoprogramsontheWindows
7operatingsystem...........15
AccessingLenovoprogramsontheWindows
8orWindows8.1operatingsystem....17
Lenovoprogramsoverview........17
Chapter2.Usingyourcomputer...21
Registeringyourcomputer..........21
Frequentlyaskedquestions.........21
Specialkeys...............23
ThinkPadpointingdevice..........25
UsingtheThinkPadpointingdevice....25
Trackpadtouchgestures.........31
CustomizingtheThinkPadpointingdevice..32
ReplacingthecapoftheTrackPointpointing
stick.................32
Powermanagement............33
Checkingthebatterystatus........33
Usingtheacpoweradapter........34
Chargingthebattery..........34
Maximizingthebatterylife........35
Managingthepowerplans........35
Power-savingmodes..........35
Handlingthebattery...........36
Connectingtothenetwork..........37
Ethernetconnections..........38
Wirelessconnections..........38
Presentationsandmultimedia.........42
Changingdisplaysettings........42
Connectingaprojectororanexternal
monitor................42
Settingupapresentation.........45
Usingdualdisplays...........45
UsingtheNVIDIAOptimusGraphicsfeature...46
Usingthecolorsensor...........46
Usingaudiofeatures............47
Usingthecamera.............47
Usingtheopticaldrive...........48
UsinganExpressCard,aflashmediacard,ora
smartcard................48
InstallinganExpressCard,aflashmediacard,
orasmartcard.............49
RemovinganExpressCard,aflashmedia
card,orasmartcard..........49
Chapter3.Youandyourcomputer..51
Accessibilityandcomfort..........51
Ergonomicinformation..........51
Comfort...............52
Accessibilityinformation.........52
Travelingwithyourcomputer.........53
Traveltips...............53
Travelaccessories...........53
Chapter4.Security..........55
Usingpasswords..............55
Typingpasswords...........55
Power-onpassword...........55
Supervisorpassword..........56
Harddiskpasswords..........57
Harddisksecurity.............59
Settingthesecuritychip...........60
Usingthefingerprintreader..........61
Noticeondeletingdatafromyourharddiskdrive
orsolid-statedrive.............64
Usingfirewalls...............65
Protectingdataagainstviruses........65
Chapter5.ecoveryoverview....67
RecoveryoverviewfortheWindows7operating
system..................67
Creatingandusingarecoverymedia....67
©CopyrightLenovo2013,2015i

Performingbackupandrecoveryoperations.68
UsingtheRescueandRecoveryworkspace.69
Creatingandusingarescuemedium....70
Reinstallingpreinstalledprogramsanddevice
drivers................71
Solvingrecoveryproblems........71
RecoveryoverviewfortheWindows8and
Windows8.1operatingsystems........72
Refreshingyourcomputer........72
Resettingyourcomputertothefactorydefault
settings................72
Usingtheadvancedstartupoptions....73
RecoveringyouroperatingsystemifWindows
8orWindows8.1failstostart.......73
Creatingandusingrecoverymedia.....74
Chapter6.eplacingdevices.....77
Staticelectricityprevention..........77
Replacingthebatterypack..........77
InstallingorreplacingtheSIMcard.......79
ReplacingtheUltrabaydevice........80
Replacingamemorymodule.........83
Replacingtheharddiskdriveorsolid-statedrive.85
ReplacingawirelessLANcard........88
ReplacingawirelessWANcard........91
Replacingthecoin-cellbattery........95
Replacingthekeyboard...........97
Chapter7.Enhancingyour
computer..............103
FindingThinkPadoptions..........103
ThinkPaddockingstations..........103
Locatingcontrolsandconnectorsonthe
ThinkPaddockingstations........103
AttachingaThinkPaddockingstation....108
DetachingaThinkPaddockingstation...109
Connectingexternaldisplaystoadocking
station................110
Securityfeatures............111
Chapter8.Advanced
configuration............113
Installinganewoperatingsystem.......113
InstallingtheWindows7operatingsystem..113
InstallingtheWindows8orWindows8.1
operatingsystem............114
Installingdevicedrivers...........115
UsingtheThinkPadSetupprogram......115
Mainmenu..............116
Configmenu..............116
DateandTimemenu..........122
Securitymenu.............122
Startupmenu.............128
Restartmenu.............130
UpdatingyoursystemUEFIBIOS.....130
Usingsystemmanagement..........131
Settingmanagementfeatures.......131
Chapter9.Preventingproblems..133
Generaltipsforpreventingproblems......133
Makingsuredevicedriversarecurrent.....134
Takingcareofyourcomputer.........135
Cleaningthecoverofyourcomputer....136
Chapter10.Troubleshooting
computerproblems.........139
Diagnosingproblems............139
Troubleshooting..............139
Computerstopsresponding.......139
Spillsonthekeyboard..........140
Errormessages............140
Errorswithoutmessages.........142
Beeperrors..............143
Memorymoduleproblems........143
Networkingproblems..........143
Problemswiththekeyboardandotherpointing
devices................145
Problemswiththedisplayandmultimedia
devices................146
Fingerprintreaderproblems........149
Batteryandpowerproblems.......150
Problemswithdrivesandotherstorage
devices................152
Asoftwareproblem...........154
Problemswithportsandconnectors....154
Chapter11.Gettingsupport....155
BeforeyoucontactLenovo..........155
Gettinghelpandservice...........155
Usingdiagnosticprograms........156
LenovoSupportWebsite.........156
CallingLenovo.............156
Purchasingadditionalservices........157
AppendixA.egulatory
information.............159
Wirelessrelatedinformation.........159
LocationoftheUltraConnectwireless
antennas...............160
Locatingwirelessregulatorynotices....161
Certificationrelatedinformation........161
Exportclassificationnotice..........161
Electronicemissionnotices..........162
iiUserGuide

FederalCommunicationsCommission
DeclarationofConformity........162
IndustryCanadaClassBemissioncompliance
statement...............162
EuropeanUnion-Compliancetothe
ElectromagneticCompatibilityDirective...162
GermanClassBcompliancestatement...163
KoreaClassBcompliancestatement....163
JapanVCCIClassBcompliancestatement..163
Japancompliancestatementforproducts
whichconnecttothepowermainswith
ratedcurrentlessthanorequalto20Aper
phase................164
Lenovoproductserviceinformationfor
Taiwan................164
Eurasiancompliancemark..........164
Brazilregulatorynotice...........164
Mexicoregulatorynotice...........164
AppendixB.WEEEandrecycling
statements.............165
ImportantWEEEinformation.........165
RecyclinginformationforChina........165
Japanrecyclingstatements.........165
RecyclinginformationforBrazil........166
BatteryrecyclinginformationfortheEuropean
Union..................167
BatteryrecyclinginformationforTaiwan.....167
BatteryrecyclinginformationfortheUnitedStates
andCanada................167
AppendixC.estrictionofHazardous
SubstancesDirective(oHS)....169
EuropeanUnionRoHS...........169
ChinaRoHS................170
IndiaRoHS................171
TurkishRoHS...............171
UkraineRoHS...............171
AppendixD.ENEGYSTAmodel
information.............173
AppendixE.Notices.........175
Trademarks................176
©CopyrightLenovo2013,2015iii

ivUserGuide

eadthisfirst
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
ortheLenovoLimitedWarranty.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
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.
Ifyouhaveanyquestionabouttheconditionofacomponent,donotusetheproduct.Contact
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.
Safetyguidelines
Alwaysobservethefollowingprecautionstoreducetheriskofinjuryandpropertydamage.
Serviceandupgrades
DonotattempttoserviceaproductyourselfunlessinstructedtodosobytheCustomerSupportCenteror
yourdocumentation.OnlyuseaServiceProviderwhoisapprovedtorepairyourparticularproduct.
Note:Somecomputerpartscanbeupgradedorreplacedbythecustomer.Upgradestypicallyare
referredtoasoptions.ReplacementpartsapprovedforcustomerinstallationarereferredtoasCustomer
ReplaceableUnits,orCRUs.Lenovoprovidesdocumentationwithinstructionswhenitisappropriatefor
customerstoinstalloptionsorreplaceCRUs.Youmustcloselyfollowallinstructionswheninstallingor
replacingparts.TheOffstateofapowerindicatordoesnotnecessarilymeanthatvoltagelevelsinsidea
productarezero.Beforeyouremovethecoversfromaproductequippedwithapowercord,alwaysmake
©CopyrightLenovo2013,2015vii

surethatthepoweristurnedoffandthattheproductisunpluggedfromanypowersource.Ifyouhave
anyquestionsorconcerns,contacttheCustomerSupportCenter.
Althoughtherearenomovingpartsinyourcomputerafterthepowercordhasbeendisconnected,the
followingwarningsarerequiredforyoursafety.
CAUTION:
Hazardousmovingparts.Keepfingersandotherbodypartsaway.
CAUTION:
BeforereplacinganyCUs,turnoffthecomputerandwaitthreetofiveminutestoletthecomputer
coolbeforeopeningthecover.
Powercordsandpoweradapters
DANGE
Useonlythepowercordsandpoweradapterssuppliedbytheproductmanufacturer.
Thepowercordsshallbesafetyapproved.ForGermany,itshallbeH05VV-F,3G,0.75mm2,or
better.Forothercountries,thesuitabletypesshallbeusedaccordingly.
Neverwrapapowercordaroundapoweradapterorotherobject.Doingsocanstressthecordin
waysthatcancausethecordtofray,crack,orcrimp.Thiscanpresentasafetyhazard.
Alwaysroutepowercordssothattheywillnotbewalkedon,trippedover,orpinchedbyobjects.
Protectpowercordsandpoweradaptersfromliquids.Forinstance,donotleaveyourpowercord
orpoweradapternearsinks,tubs,toilets,oronfloorsthatarecleanedwithliquidcleansers.
Liquidscancauseashortcircuit,particularlyifthepowercordorpoweradapterhasbeenstressed
bymisuse.Liquidsalsocancausegradualcorrosionofpowercordterminalsand/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
DANGE
Ifareceptacle(poweroutlet)thatyouintendtousewithyourcomputerequipmentappearstobe
damagedorcorroded,donotusetheoutletuntilitisreplacedbyaqualifiedelectrician.
Donotbendormodifytheplug.Iftheplugisdamaged,contactthemanufacturertoobtain
areplacement.
Donotshareanelectricaloutletwithotherhomeorcommercialappliancesthatdrawlargeamounts
ofelectricity;otherwise,unstablevoltagemightdamageyourcomputer,data,orattacheddevices.
Someproductsareequippedwithathree-prongedplug.Thisplugfitsonlyintoagrounded
electricaloutlet.Thisisasafetyfeature.Donotdefeatthissafetyfeaturebytryingtoinsertitinto
anon-groundedoutlet.Ifyoucannotinserttheplugintotheoutlet,contactanelectricianforan
approvedoutletadapterortoreplacetheoutletwithonethatenablesthissafetyfeature.Never
overloadanelectricaloutlet.Theoverallsystemloadshouldnotexceed80percentofthebranch
circuitrating.Consultanelectricianformoreinformationifyouhavequestionsaboutpowerloads
andbranchcircuitratings.
Besurethatthepoweroutletyouareusingisproperlywired,easilyaccessible,andlocatedclose
totheequipment.Donotfullyextendpowercordsinawaythatwillstressthecords.
Besurethatthepoweroutletprovidesthecorrectvoltageandcurrentfortheproductyouare
installing.
Carefullyconnectanddisconnecttheequipmentfromtheelectricaloutlet.
Powersupplystatement
DANGE
Neverremovethecoveronapowersupplyoranypartthathasthefollowinglabelattached.
Hazardousvoltage,current,andenergylevelsarepresentinsideanycomponentthathasthislabel
attached.Therearenoserviceablepartsinsidethesecomponents.Ifyoususpectaproblemwith
oneoftheseparts,contactaservicetechnician.
©CopyrightLenovo2013,2015ix

Externaldevices
CAUTION:
DonotconnectordisconnectanyexternaldevicecablesotherthanUSBand1394cableswhilethe
computerpowerison;otherwise,youmightdamageyourcomputer.Toavoidpossibledamageto
attacheddevices,waitatleastfivesecondsafterthecomputerisshutdowntodisconnectexternal
devices.
Generalbatterynotice
DANGE
PersonalcomputersmanufacturedbyLenovocontainacoin-cellbatterytoprovidepowerto
thesystemclock.Inaddition,manymobileproducts,suchasnotebookcomputers,utilizea
rechargeablebatterypacktoprovidesystempowerwheninportablemode.Batteriessuppliedby
Lenovoforusewithyourproducthavebeentestedforcompatibilityandshouldonlybereplaced
withapprovedparts.
Neverattempttoopenorserviceanybattery.Donotcrush,puncture,orincineratebatteriesor
shortcircuitthemetalcontacts.Donotexposethebatterytowaterorotherliquids.Onlyrecharge
thebatterypackstrictlyaccordingtoinstructionsincludedintheproductdocumentation.
Batteryabuseormishandlingcancausethebatterytooverheat,whichcancausegassesorflame
to“vent”fromthebatterypackorcoin-cellbattery.Ifyourbatteryisdamaged,orifyounoticeany
dischargefromyourbatteryorthebuildupofforeignmaterialsonthebatteryleads,stopusingthe
batteryandobtainareplacementfromthebatterymanufacturer.
Batteriescandegradewhentheyareleftunusedforlongperiodsoftime.Forsomerechargeable
batteries(particularlyLithiumIonbatteries),leavingabatteryunusedinadischargedstatecould
increasetheriskofabatteryshortcircuit,whichcouldshortenthelifeofthebatteryandalsocan
poseasafetyhazard.DonotletrechargeableLithium-Ionbatteriescompletelydischargeorstore
thesebatteriesinadischargedstate.
echargeablebatterynotice
DANGE
Donotattempttodisassembleormodifythebatterypack.Attemptingtodosocancausean
explosion,orliquidleakagefromthe.AotherthantheonespecifiedbyLenovo,oradisassembled
ormodifiedisnotcoveredbythewarranty.
Iftherechargeablebatterypackisincorrectlyreplaced,thereisdangerofanexplosion.Thebattery
packcontainsasmallamountofharmfulsubstances.Toavoidpossibleinjury:
•eplaceonlywithabatteryofthetyperecommendedbyLenovo.
•Keepthebatterypackawayfromfire.
•Donotexposeittowaterorrain.
•Donotattempttodisassembleit.
•Donotshort-circuitit.
•Keepitawayfromchildren.
•Donotdropthebatterypack.
Donotputthebatterypackintrashthatisdisposedofinlandfills.Whendisposingofthebattery,
complywithlocalordinancesorregulations.
xUserGuide

Thebatterypackshouldbestoredatroomtemperature,chargedtoapproximately30to50%
ofcapacity.Werecommendthatbatterypackbechargedaboutonceperyeartoprevent
overdischarge.
Lithiumcoin-cellbatterynotice
DANGE
Dangerofexplosionifbatteryisincorrectlyreplaced.
Whenreplacingthelithiumcoin-cellbattery,useonlythesameoranequivalenttypethatis
recommendedbythemanufacturer.Thebatterycontainslithiumandcanexplodeifnotproperly
used,handled,ordisposedof.
Donot:
•Throworimmerseintowater
•Heattomorethan100°C(212°F)
•epairordisassemble
Disposeofthebatteryasrequiredbylocalordinancesorregulations.
ThefollowingstatementappliestousersinthestateofCalifornia,U.S.A.
CaliforniaPerchlorateInformation:
Productscontainingmanganesedioxidelithiumcoin-cellbatteriesmaycontainperchlorate.
PerchlorateMaterial-specialhandlingmayapply,See
www.dtsc.ca.gov/hazardouswaste/perchlorate
Heatandproductventilation
DANGE
Computers,acpoweradapters,andmanyaccessoriescangenerateheatwhenturnedonandwhen
batteriesarecharging.Notebookcomputerscangenerateasignificantamountofheatduetotheir
compactsize.Alwaysfollowthesebasicprecautions:
•Whenyourcomputeristurnedonorthebatteryischarging,thebase,thepalmrest,andsome
otherpartsmaybecomehot.Avoidkeepingyourhands,yourlap,oranyotherpartofyour
bodyincontactwithahotsectionofthecomputerforanyextendedlengthoftime.Whenyou
usethekeyboard,avoidkeepingyourpalmsonthepalmrestforaprolongedperiodoftime.
Yourcomputergeneratessomeheatduringnormaloperation.Theamountofheatdependson
theamountofsystemactivityandthebatterychargelevel.Extendedcontactwithyourbody,
eventhroughclothing,couldcausediscomfortorevenaskinburn.Periodicallytakebreaks
fromusingthekeyboardbyliftingyourhandsfromthepalmrest;andbecarefulnottouse
thekeyboardforanyextendedlengthoftime.
•Donotoperateyourcomputerorchargethebatterynearflammablematerialsorinexplosive
environments.
©CopyrightLenovo2013,2015xi

•Ventilationslots,fansand/orheatsinksareprovidedwiththeproductforsafety,comfort,and
reliableoperation.Thesefeaturesmightinadvertentlybecomeblockedbyplacingtheproducton
abed,sofa,carpet,orotherflexiblesurface.Neverblock,cover,ordisablethesefeatures.
•Whentheacpoweradapterisconnectedtoanelectricaloutletandyourcomputer,itgenerates
heat.Donotplacetheadapterincontactwithanypartofyourbodywhileusingit.Neverusethe
acpoweradaptertowarmyourbody.Extendedcontactwithyourbody,eventhroughclothing,
maycauseaskinburn.
Foryoursafety,alwaysfollowthesebasicprecautionswithyourcomputer:
•Keepthecoverclosedwheneverthecomputerispluggedin.
•egularlyinspecttheoutsideofthecomputerfordustaccumulation.
•emovedustfromventsandanyperforationsinthebezel.Morefrequentcleaningsmightbe
requiredforcomputersindustyorhigh-trafficareas.
•Donotrestrictorblockanyventilationopenings.
•Donotoperateyourcomputerinsidefurniture,asthismightincreasetheriskofoverheating.
•Airflowtemperaturesintothecomputershouldnotexceed35°C(95°F).
Electricalcurrentsafetyinformation
DANGE
Electriccurrentfrompower,telephone,andcommunicationcablesishazardous.
Toavoidashockhazard:
•Donotuseyourcomputerduringalightningstorm.
•Donotconnectordisconnectanycablesorperforminstallation,maintenance,orreconfiguration
ofthisproductduringanelectricalstorm.
•Connectallpowercordstoaproperlywiredandgroundedelectricaloutlet.
•Connecttoproperlywiredoutletsanyequipmentthatwillbeattachedtothisproduct.
•Wheneverpossible,useonehandonlytoconnectordisconnectsignalcables.
•Neverturnonanyequipmentwhenthereisevidenceoffire,water,orstructuraldamage.
•Disconnecttheattachedpowercords,batterypack,andallthecablesbeforeyouopenthe
devicecovers,unlessinstructedotherwiseintheinstallationandconfigurationprocedures.
•Donotuseyourcomputeruntilallinternalpartsenclosuresarefastenedintoplace.Neveruse
thecomputerwheninternalpartsandcircuitsareexposed.
xiiUserGuide

DANGE
Connectanddisconnectcablesasdescribedinthefollowingprocedureswheninstalling,moving,
oropeningcoversonthisproductorattacheddevices.
Toconnect:
1.TurneverythingOFF .
2.First,attachallcablestodevices.
3.Attachsignalcablestoconnectors.
4.Attachpowercordstooutlets.
5.TurndevicesON.
Todisconnect:
1.TurneverythingOFF .
2.First,removepowercordsfromoutlets.
3.emovesignalcablesfromconnectors.
4.emoveallcablesfromdevices.
Thepowercordmustbedisconnectedfromthewalloutletorreceptaclebeforeinstallingallother
electricalcablesconnectedtothecomputer.
Thepowercordmaybereconnectedtothewalloutletorreceptacleonlyafterallotherelectrical
cableshavebeenconnectedtothecomputer.
Lasercompliancestatement
CAUTION:
Whenlaserproducts(suchasCD-OMs,DVDdrives,fiberopticdevices,ortransmitters)are
installed,notethefollowing:
•Donotremovethecovers.emovingthecoversofthelaserproductcouldresultinexposureto
hazardouslaserradiation.Therearenoserviceablepartsinsidethedevice.
•Useofcontrolsoradjustmentsorperformanceofproceduresotherthanthosespecifiedherein
mightresultinhazardousradiationexposure.
DANGE
SomelaserproductscontainanembeddedClass3AorClass3Blaserdiode.Notethefollowing.
Laserradiationwhenopen.Donotstareintothebeam,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.
Usingheadphonesorearphones
Ifyourcomputerhasbothaheadphoneconnectorandanaudio-outconnector,alwaysusetheheadphone
connectorforheadphones(alsocalledaheadset)orearphones.
©CopyrightLenovo2013,2015xiii

CAUTION:
Excessivesoundpressurefromearphonesandheadphonescancausehearingloss.Adjustmentof
theequalizertomaximumincreasestheearphoneandheadphoneoutputvoltageandthesound
pressurelevel.Therefore,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
DANGE
Plasticbagscanbedangerous.Keepplasticbagsawayfrombabiesandchildrentoavoiddanger
ofsuffocation.
PolyvinylChloride(PVC)cableandcordnotice
Manypersonalcomputerproductsandaccessoriescontaincords,cablesorwires,suchaspowercordsor
cordstoconnecttheaccessorytoapersonalcomputer.Ifthisproducthassuchacord,cableorwire,then
thefollowingwarningapplies
WANING:Handlingthecordonthisproductorcordsassociatedwithaccessoriessoldwiththisproduct
willexposeyoutolead,achemicalknowntotheStateofCaliforniatocausecancer,andbirthdefectsor
otherreproductiveharm.Washhandsafterhandling.
Savetheseinstructions.
xivUserGuide

Chapter1.Productoverview
Thischapterprovidesinformationaboutconnectorlocations,importantproductlabels,computerfeatures,
specifications,operatingenvironment,andpreinstalledprograms.
•“Locatingcomputercontrols,connectors,andindicators”onpage1
•“Locatingimportantproductinformation”onpage10
•“Features”onpage12
•“Specifications”onpage14
•“Operatingenvironment”onpage14
•“Lenovoprograms”onpage15
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”
onpage47.
2Microphones
Themicrophonescapturesoundandvoicewhenusedwithaprogramcapableofhandlingaudio.
3Powerbutton
Usethepowerbuttontoturnonthecomputer.
Toturnoffthecomputer,usetheStartmenushutdownoptionontheMicrosoft®Windows®7operating
system.FortheWindows8andWindows8.1operatingsystems,movethecursortothetop-rightor
bottom-rightcornerofthescreentobringupthecharms.ThenclickSettings➙Power➙Shutdown.
Ifyourcomputerstopsrespondingandyoucannotturnitoff,pressandholdthepowerbuttonforfour
secondsormore.Ifthecomputerstillisnotresponding,removetheacpoweradapterandthebattery
toresetthecomputer.
Youalsocanprogramthepowerbuttonsothatbypressingthepowerbuttonyoucanturnoffthecomputer
orputthecomputerintosleeporhibernationmode.Toachievethis,youneedtochangeyourpowerplan
settings.Toaccesspowerplansettings,dothefollowing
2UserGuide

•ForWindows7OpenthePowerManagerprogramandthenclickPowerPlanorAdvanced➙Power
Plan.ForinstructionsonhowtostartthePowerManagerprogram,see“AccessingLenovoprogramson
theWindows7operatingsystem”onpage15.
•ForWindows8andWindows8.1ClickthebatterystatusiconintheWindowsnotificationareaandclick
Morepoweroptions.ThenclickChoosewhatthepowerbuttonsdo.
4Numerickeypad
Usethenumerickeypadtoquicklyinputnumbers.
5Fingerprintreader(onsomemodels)
Fingerprintauthenticationtechnologyprovidesasimpleandsecureuseraccessbyassociatingyour
fingerprintwithpasswords.Formoreinformation,see“Usingthefingerprintreader”onpage61.
6Colorsensor(onsomemodels)
Thecolorsensorenablesyoutomeasureandadjustthecoloraccuracyofyourdisplays.Formore
information,see“Usingthecolorsensor”onpage46.
ThinkPadpointingdevice
7TrackPointpointingstick
9ThinkPadtrackpad
10TrackPointbuttons(onThinkPadW541only)
ThekeyboardcontainstheLenovouniqueThinkPadpointingdevice.Pointing,selecting,anddraggingareall
partofasingleprocessthatyoucanperformwithoutmovingyourfingersfromatypingposition.
8NFClogo(onsomemodels)
IfthereisaNearFieldCommunication(NFC)logoonthetrackpadofyourcomputer,itindicatesthatyour
computersupportstheNFCfeature.Formoreinformation,see“UsingtheNFCconnection”onpage41.
ight-sideview
Figure3.Right-sideiew
Chapter1.Productoverview3

1Smartcardslot(onsomemodels)4USB2.0connector
2SerialUltrabay™Enhancedbay5Security-lockslot
3USB3.0connector
1Smartcardslot(onsomemodels)
Yourcomputermighthaveasmartcardslot.Formoreinformation,see“UsinganExpressCard,aflash
mediacard,orasmartcard”onpage48.
2SerialUltrabayEnhancedbay
YourcomputerhasabayforSerialUltrabayEnhanceddevices.Forsomemodels,anopticaldriveisinstalled
inthebay.Forcertainmodels,asecondaryharddiskdriveorsolid-statedriveisinstalled.
3USB3.0connector
TheUniversalSerialBus(USB)3.0connectorisusedforconnectingUSB-compatibledevices,suchasa
USBprinteroradigitalcamera.
Attention:WhenyouattachaUSBcabletothisUSBconnector,ensurethattheUSBmarkisfacingupward.
Otherwisetheconnectormightbedamaged.
4USB2.0connector
TheUSB2.0connectorisusedforconnectingUSB-compatibledevices,suchasaUSBprinteroradigital
camera.
Attention:WhenyouattachaUSBcabletothisUSBconnector,ensurethattheUSBmarkisfacingupward.
Otherwisetheconnectormightbedamaged.
5Security-lockslot
Toprotectyourcomputerfromtheft,youcanpurchaseasecuritycablelockthatfitsthesecurity-lock
slottolockthecomputertoastationaryobject.
Note:Youareresponsibleforevaluating,selecting,andimplementingthelockingdeviceandsecurity
feature.Lenovomakesnocomments,judgments,orwarrantiesaboutthefunction,quality,orperformance
ofthelockingdeviceandsecurityfeature.
4UserGuide