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UserGuide
ThinkPadEdgeE420s
Notes:Beforeusingthisinformationandtheproductitsupports,besuretoreadthefollowing:
•SafetyandWarrantyGuide
•RegulatoryNotice
•“Importantsafetyinformation”onpagevi
•AppendixC“Notices”onpage165
TheSafetyandWarrantyGuideandtheRegulatoryNoticehavebeenuploadedtotheWebsite.Toreferto
them,gotohttp://support.lenovo.com,andthenclickUserGuides&Manuals.
SecondEdition(September2011)
©CopyrightLenovo2011.
LIMITEDANDRESTRICTEDRIGHTSNOTICE:IfdataorsoftwareisdeliveredpursuantaGeneralServicesAdministration
“GSA”contract,use,reproduction,ordisclosureissubjecttorestrictionssetforthinContractNo.GS-35F-05925.
Contents
Readthisrst..............v
Importantsafetyinformation..........vi
Conditionsthatrequireimmediateaction..vii
Safetyguidelines............vii
Chapter1.ProductOverview......1
Locatingcomputercontrols,connectors,and
indicators..................1
Frontview................2
Right-sideview..............4
Left-sideview..............6
Bottomview...............7
Rearview................8
Statusindicators.............9
Locatingimportantproductinformation.....11
Machinetypeandmodellabel.......12
FCCIDandICCerticationnumberlabel..12
CerticateofAuthenticitylabel......13
Features.................14
Specications...............15
Operatingenvironment...........15
ThinkVantagetechnologiesandsoftware....16
AccessingapplicationsinWindows7....17
AccessConnections..........18
ActiveProtectionSystem.........18
FingerprintSoftware...........18
LenovoThinkVantageTools........19
LenovoThinkVantageToolbox.......19
MessageCenterPlus..........19
PasswordManager...........19
PowerManager............20
ProductRecovery...........20
PresentationDirector..........20
RescueandRecovery..........20
SystemUpdate............20
ThinkVantageGPS...........21
Chapter2.Usingyourcomputer...23
Registeringyourcomputer..........23
Frequentlyaskedquestions.........23
Specialkeysandbuttons..........25
Functionkeys.............25
TheWindowskeyandtheApplicationkey..27
UsingtheUltraNavpointingdevice.......27
UsingtheTrackPointpointingdevice....28
Usingthetouchpad...........29
BehavioroftheUltraNavandanexternal
mouse................30
AddingtheUltraNavicontothesystemtray.30
Powermanagement............31
Checkingbatterystatus.........31
Usingtheacpoweradapter........31
Chargingthebattery..........32
Maximizingbatterylife..........32
Power-savingmodes..........32
Connectingtothenetwork..........34
Ethernetconnections..........34
Wirelessconnections..........34
Usingaprojectororexternaldisplay......42
Changingdisplaysettings........42
Attachinganexternalmonitor.......42
Settingupapresentation.........45
Usingacolorprole...........45
Usingaudiofeatures..........45
Usinganintegratedcamera........46
Usingdualdisplays...........47
UsingtheAMDPX4.0DynamicSwitchable
Graphicsfeature..............48
UsingtheThinkLightfeature.........48
Usingtheopticaldrive...........49
Usingthemediacardreader.........49
Chapter3.Youandyourcomputer..51
Accessibilityandcomfort..........51
Ergonomicinformation..........51
Adjustingyourcomputertotyou.....52
Accessibilityinformation.........53
Travelingwithyourcomputer.........53
Traveltips...............54
Travelaccessories...........54
Chapter4.Security..........55
Attachingamechanicallock.........55
Usingpasswords..............55
Passwordsandsleep(standby)mode....56
Power-onpassword...........56
Harddiskpasswords..........57
Supervisorpassword..........59
Harddisksecurity.............61
Usingangerprintreader..........61
Noticeondeletingdatafromyourharddiskdrive
orsolidstatedrive.............63
Usingandunderstandingrewalls.......64
©CopyrightLenovo2011
i
Protectingdataagainstviruses........64
Chapter5.Recoveryoverview....67
Creatingandusingrecoverymedia......67
Creatingrecoverymedia.........68
Usingrecoverymedia..........68
Performingbackupandrecoveryoperations...69
Performingabackupoperation......69
Performingarecoveryoperation......69
UsingtheRescueandRecoveryworkspace...70
Creatingandusingarescuemedium......71
Creatingarescuemedium........71
Usingarescuemedium.........71
Reinstallingpreinstalledapplicationsanddevice
drivers..................72
Solvingrecoveryproblems..........73
Chapter6.Replacingdevices.....75
Staticelectricityprevention..........75
BeforereplacingCRU............75
Replacingthesolidstatedriveorharddiskdrive.76
Replacingthekeyboard...........78
Replacingmemory.............82
InstallingandreplacingthemSATAsolidstate
drive...................84
InstallingandreplacingthePCIExpressMiniCard
forwirelessLAN/WiMAXconnection......86
InstallingandreplacingthePCIExpressMiniCard
forwirelessWANconnection.........89
ReplacingtheSIMcard...........91
Chapter7.Enhancingyour
computer...............95
FindingThinkPadoptions..........95
Usingaashmediacard...........95
Chapter8.Advancedconguration..97
Installinganewoperatingsystem.......97
Beforeyoubegin............97
InstallingWindows7..........98
InstallingWindowsXP..........99
Installingdevicedrivers...........101
InstallingThinkPadMonitorFileforWindows
2000/XP/Vista/7............101
InstallingIntelChipsetSupportforWindows
2000/XP/Vista/7............102
Installingdriversandsoftware.......102
ThinkPadSetup..............103
Congmenu..............103
Dateandtimemenu...........104
Securitymenu.............104
Startupmenu.............105
Restartmenu.............106
ThinkPadSetupitems..........107
UpdatingyoursystemUEFIBIOS.....114
Usingsystemmanagement..........115
Systemmanagement..........115
Settingmanagementfeatures.......115
Chapter9.Preventingproblems..117
Generaltipsforpreventingproblems......117
Makingsuredevicedriversarecurrent.....118
GettingthelatestdriversfromtheWebsite..118
GettingthelatestdriversusingSystem
Update................118
Takingcareofyourcomputer.........119
Cleaningthecoverofyourcomputer....120
Chapter10.Troubleshooting
computerproblems.........123
Diagnosingprograms............123
UsingLenovoThinkVantageToolbox....123
Troubleshooting..............123
Computerstopsresponding.......123
Spillsonthekeyboard..........124
Errormessages............124
Errorswithoutmessages.........126
Beeperrors..............127
Memoryproblems...........127
Networking..............128
Keyboardandotherpointingdevices....132
Displayandmultimediadevices......133
Fingerprintreaderproblems........140
Batteryandpower...........141
Drivesandotherstoragedevices.....144
Softwareproblems...........146
Portsandconnectors..........146
UniversalSerialBusproblems.......146
Chapter11.Gettingsupport....149
BeforeyoucontactLenovo..........149
Registeryourcomputer.........149
Downloadsystemupdates........149
Recordinformation...........149
Gettinghelpandservice...........150
Usingdiagnosticprograms........150
LenovoSupportWebsite.........150
CallingLenovo.............151
Purchasingadditionalservices........154
AppendixA.Regulatory
information.............157
Wirelessrelatedinformation.........157
iiUserGuide
LocationoftheUltraConnectwireless
antennas...............158
Locatingwirelessregulatorynotices....159
Exportclassicationnotice..........160
Electronicemissionnotices..........160
FederalCommunicationsCommission
DeclarationofConformity........160
IndustryCanadaClassBemissioncompliance
statement...............160
EuropeanUnion-Compliancetothe
ElectromagneticCompatibilityDirective...161
GermanClassBcompliancestatement...161
KoreaClassBcompliancestatement....161
JapaneseVCCIClassBstatement.....162
Japancompliancestatementforproducts
whichconnecttothepowermainswith
ratedcurrentlessthanorequalto20Aper
phase................162
Lenovoproductserviceinformationfor
Taiwan................162
Additionalregulatoryinformation.......162
AppendixB.WEEEandrecycling
statements.............163
EUWEEEstatements............163
Japanrecyclingstatements.........163
AppendixC.Notices.........165
Trademarks................166
©CopyrightLenovo2011
iii
ivUserGuide
Readthisrst
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.
•Putitinsleep(standby)mode
•Putitinhibernationmode.
Thiswillhelptopreventdamagetothecomputer,andpossiblelossofdata.
Handleyourcomputergently.
•Donotdrop,bump,scratch,twist,hit,vibrate,push,orplaceheavyobjectson
yourcomputer,display,orexternaldevices.
Carryyourcomputercarefully.
•Useaqualitycarryingcasethatprovidesadequatecushioningandprotection.
•Donotpackyourcomputerinatightlypackedsuitcaseorbag.
•Beforeputtingyourcomputerinacarryingcase,makesurethatitisoff.Donot
putacomputerinacarryingcasewhileitisturnedon.
Importantsafetyinformation
Note:Readimportantsafetyinformationrst.
Thisinformationcanhelpyousafelyuseyournotebookpersonalcomputer.Followandretainallinformation
includedwithyourcomputer.Theinformationinthisdocumentdoesnotalterthetermsofyourpurchase
agreementortheLenovo
®
LimitedWarranty.Formoreinformation,see“WarrantyInformation”intheSafety
andWarrantyGuidethatcomeswithyourcomputer.
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,orre.
•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,see“WarrantyInformation”intheSafetyandWarrantyGuidethatcomeswithyour
computer.
Serviceandupgrades
DonotattempttoserviceaproductyourselfunlessinstructedtodosobytheCustomerSupportCenteror
yourdocumentation.OnlyuseaServiceProviderwhoisapprovedtorepairyourparticularproduct.
©CopyrightLenovo2011
vii
Note:Somecomputerpartscanbeupgradedorreplacedbythecustomer.Upgradestypicallyare
referredtoasoptions.ReplacementpartsapprovedforcustomerinstallationarereferredtoasCustomer
ReplaceableUnits,orCRUs.Lenovoprovidesdocumentationwithinstructionswhenitisappropriatefor
customerstoinstalloptionsorreplaceCRUs.Youmustcloselyfollowallinstructionswheninstallingor
replacingparts.TheOffstateofapowerindicatordoesnotnecessarilymeanthatvoltagelevelsinsidea
productarezero.Beforeyouremovethecoversfromaproductequippedwithapowercord,alwaysmake
surethatthepoweristurnedoffandthattheproductisunpluggedfromanypowersource.Formore
informationonCRUs,refertoReplacingdevicesforthisproduct.Ifyouhaveanyquestionsorconcerns,
contacttheCustomerSupportCenter.
Althoughtherearenomovingpartsinyourcomputerafterthepowercordhasbeendisconnected,the
followingwarningsarerequiredforyoursafety.
DANGER
Hazardousmovingparts.Keepngersandotherbodypartsaway.
CAUTION:
BeforereplacinganyCRUs,turnoffthecomputerandwaitthreetoveminutestoletthecomputer
coolbeforeopeningthecover.
viiiUserGuide
Powercordsandpoweradapters
DANGER
Useonlythepowercordsandpoweradapterssuppliedbytheproductmanufacturer.
Thepowercordsshallbesafetyapproved.ForGermany,itshallbeH05VV-F,3G,0.75mm
2
,or
better.Forothercountries,thesuitabletypesshallbeusedaccordingly.
Neverwrapapowercordaroundapoweradapterorotherobject.Doingsocanstressthecordin
waysthatcancausethecordtofray,crack,orcrimp.Thiscanpresentasafetyhazard.
Alwaysroutepowercordssothattheywillnotbewalkedon,trippedover,orpinchedbyobjects.
Protectpowercordandpoweradaptersfromliquids.Forinstance,donotleaveyourpowercordor
poweradapternearsinks,tubs,toilets,oronoorsthatarecleanedwithliquidcleansers.Liquids
cancauseashortcircuit,particularlyifthepowercordorpoweradapterhasbeenstressedby
misuse.Liquidsalsocancausegradualcorrosionofpowercordterminalsand/ortheconnector
terminalsonapoweradapter,whichcaneventuallyresultinoverheating.
Alwaysconnectpowercordsandsignalcablesinthecorrectorderandensurethatallpowercord
connectorsaresecurelyandcompletelypluggedintoreceptacles.
DonotuseanypoweradapterthatshowscorrosionattheACinputpinsorshowssignsof
overheating(suchasdeformedplastic)attheACinputoranywhereonthepoweradapter.
Donotuseanypowercordswheretheelectricalcontactsoneitherendshowsignsofcorrosionor
overheatingorwherethepowercordappearstohavebeendamagedinanyway.
Extensioncordsandrelateddevices
Ensurethatextensioncords,surgeprotectors,uninterruptiblepowersupplies,andpowerstripsthatyouuse
areratedtohandletheelectricalrequirementsoftheproduct.Neveroverloadthesedevices.Ifpowerstrips
areused,theloadshouldnotexceedthepowerstripinputrating.Consultanelectricianformoreinformation
ifyouhavequestionsaboutpowerloads,powerrequirements,andinputratings.
©CopyrightLenovo2011
ix
Plugsandoutlets
DANGER
Ifareceptacle(poweroutlet)thatyouintendtousewithyourcomputerequipmentappearstobe
damagedorcorroded,donotusetheoutletuntilitisreplacedbyaqualiedelectrician.
Donotbendormodifytheplug.Iftheplugisdamaged,contactthemanufacturertoobtain
areplacement.
Donotshareanelectricaloutletwithotherhomeorcommercialappliancesthatdrawlargeamounts
ofelectricity;otherwise,unstablevoltagemightdamageyourcomputer,data,orattacheddevices.
Someproductsareequippedwithathree-prongedplug.Thisplugtsonlyintoagrounded
electricaloutlet.Thisisasafetyfeature.Donotdefeatthissafetyfeaturebytryingtoinsertitinto
anon-groundedoutlet.Ifyoucannotinserttheplugintotheoutlet,contactanelectricianforan
approvedoutletadapterortoreplacetheoutletwithonethatenablesthissafetyfeature.Never
overloadanelectricaloutlet.Theoverallsystemloadshouldnotexceed80percentofthebranch
circuitrating.Consultanelectricianformoreinformationifyouhavequestionsaboutpowerloads
andbranchcircuitratings.
Besurethatthepoweroutletyouareusingisproperlywired,easilyaccessible,andlocatedclose
totheequipment.Donotfullyextendpowercordsinawaythatwillstressthecords.
Besurethatthepoweroutletprovidesthecorrectvoltageandcurrentfortheproductyouare
installing.
Carefullyconnectanddisconnecttheequipmentfromtheelectricaloutlet.
Powersupplystatement
DANGER
Neverremovethecoveronapowersupplyoranypartthathasthefollowinglabelattached.
Hazardousvoltage,current,andenergylevelsarepresentinsideanycomponentthathasthislabel
attached.Therearenoserviceablepartsinsidethesecomponents.Ifyoususpectaproblemwith
oneoftheseparts,contactaservicetechnician.
Externaldevices
CAUTION:
DonotconnectordisconnectanyexternaldevicecablesotherthanUniversalSerialBus(USB)
cableswhilethecomputerpowerison;otherwise,youmightdamageyourcomputer.T oavoid
possibledamagetoattacheddevices,waitatleastvesecondsafterthecomputerisshutdownto
disconnectexternaldevices.
xUserGuide
Noticeforbuilt-inrechargeablebatteries
DANGER
Donotattempttoreplacetheinternalrechargeablelithiumionbatteries.ContactLenovoSupport
forfactoryreplacement.
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.Goto:
http://www.dtsc.ca.gov/hazardouswaste/perchlorate
©CopyrightLenovo2011
xi
Heatandproductventilation
DANGER
Computers,acpoweradapters,andmanyaccessoriescangenerateheatwhenturnedonandwhen
batteriesarecharging.Notebookcomputerscangenerateasignicantamountofheatduetotheir
compactsize.Alwaysfollowthesebasicprecautions:
•Whenyourcomputeristurnedonorthebatteryischarging,thebase,thepalmrest,andsome
otherpartsmaybecomehot.Avoidkeepingyourhands,yourlap,oranyotherpartofyour
bodyincontactwithahotsectionofthecomputerforanyextendedlengthoftime.Whenyou
usethekeyboard,avoidkeepingyourpalmsonthepalmrestforaprolongedperiodoftime.
Yourcomputergeneratessomeheatduringnormaloperation.Theamountofheatdependson
theamountofsystemactivityandthebatterychargelevel.Extendedcontactwithyourbody,
eventhroughclothing,couldcausediscomfortorevenaskinburn.Periodicallytakebreaks
fromusingthekeyboardbyliftingyourhandsfromthepalmrest;andbecarefulnottouse
thekeyboardforanyextendedlengthoftime.
•Donotoperateyourcomputerorchargethebatterynearammablematerialsorinexplosive
environments.
•Ventilationslots,fansand/orheatsinksareprovidedwiththeproductforsafety,comfort,and
reliableoperation.Thesefeaturesmightinadvertentlybecomeblockedbyplacingtheproducton
abed,sofa,carpet,orotherexiblesurface.Neverblock,cover,ordisablethesefeatures.
•Whentheacpoweradapterisconnectedtoanelectricaloutletandyourcomputer,itgenerates
heat.Donotplacetheadapterincontactwithanypartofyourbodywhileusingit.Neverusethe
acpoweradaptertowarmyourbody.Extendedcontactwithyourbody,eventhroughclothing,
maycauseaskinburn.
Foryoursafety,alwaysfollowthesebasicprecautionswithyourcomputer:
•Keepthecoverclosedwheneverthecomputerispluggedin.
•Regularlyinspecttheoutsideofthecomputerfordustaccumulation.
•Removedustfromventsandanyperforationsinthebezel.Morefrequentcleaningsmightbe
requiredforcomputersindustyorhigh-trafcareas.
•Donotrestrictorblockanyventilationopenings.
•Donotoperateyourcomputerinsidefurniture,asthismightincreasetheriskofoverheating.
•Airowtemperaturesintothecomputershouldnotexceed35°C(95°F).
xiiUserGuide
Electricalcurrentsafetyinformation
DANGER
Electriccurrentfrompower,telephone,andcommunicationcablesishazardous.
Toavoidashockhazard:
•Donotuseyourcomputerduringalightningstorm.
•Donotconnectordisconnectanycablesorperforminstallation,maintenance,orreconguration
ofthisproductduringanelectricalstorm.
•Connectallpowercordstoaproperlywiredandgroundedelectricaloutlet.
•Connecttoproperlywiredoutletsanyequipmentthatwillbeattachedtothisproduct.
•Wheneverpossible,useonehandonlytoconnectordisconnectsignalcables.
•Neverturnonanyequipmentwhenthereisevidenceofre,water,orstructuraldamage.
•Disconnecttheattachedpowercords,batterypack,andallthecablesbeforeyouopenthe
devicecovers,unlessinstructedotherwiseintheinstallationandcongurationprocedures.
•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.
•Useofcontrolsoradjustmentsorperformanceofproceduresotherthanthosespeciedherein
mightresultinhazardousradiationexposure.
©CopyrightLenovo2011
xiii
DANGER
SomelaserproductscontainanembeddedClass3AorClass3Blaserdiode.Notethefollowing.
Laserradiationwhenopen.Donotstareintothebeam,donotviewdirectlywithoptical
instruments,andavoiddirectexposuretothebeam.
Liquidcrystaldisplay(LCD)notice
CAUTION:
TheLCDismadeofglass,androughhandlingordroppingthecomputercancausetheLCDtobreak.
IftheLCDbreaksandtheinternaluidgetsintoyoureyesoronyourhands,immediatelywashthe
affectedareaswithwaterforatleast15minutes;ifanysymptomsarepresentafterwashing,get
medicalcare.
Usingheadphonesorearphones
Ifyourcomputerhasbothaheadphoneconnectorandanaudio-outconnector,alwaysusetheheadphone
connectorforheadphones(alsocalledaheadset)orearphones.
CAUTION:
Excessivesoundpressurefromearphonesandheadphonescancausehearingloss.Adjustmentof
theequalizertomaximumincreasestheearphonesandheadphonesoutputvoltageandthereforethe
soundpressurelevel.
Excessiveuseofheadphonesorearphonesforalongperiodoftimeathighvolumecanbedangerousifthe
outputoftheheadphoneorearphoneconnectorsdonotcomplywithspecicationsofEN50332-2.The
headphoneoutputconnectorofyourcomputercomplieswithEN50332-2Subclause7.Thisspecication
limitsthecomputer’smaximumwidebandtrueRMSoutputvoltageto150mV.Tohelpprotectagainst
hearingloss,ensurethattheheadphonesorearphonesyouusealsocomplywithEN50332-2(Clause7
limits)forawidebandcharacteristicvoltageof75mV.UsingheadphonesthatdonotcomplywithEN
50332-2canbedangerousduetoexcessivesoundpressurelevels.
IfyourLenovocomputercamewithheadphonesorearphonesinthepackage,asaset,thecombinationof
theheadphonesorearphonesandthecomputeralreadycomplieswiththespecicationsofEN50332-1.
Ifdifferentheadphonesorearphonesareused,ensurethattheycomplywithEN50332-1(Clause6.5
LimitationValues).UsingheadphonesthatdonotcomplywithEN50332-1canbedangerousdueto
excessivesoundpressurelevels.
Additionalsafetyinformation
DANGER
Plasticbagscanbedangerous.Keepplasticbagsawayfrombabiesandchildrentoavoiddanger
ofsuffocation.
NoticeforTabletPCusers
SafetyNoticeforusersinAustralia:
DANGER
Donotconnectphonelinewhileusingtabletmode.
xivUserGuide
NoticeforusersintheU.S.A.
ManyPCproductsandaccessoriescontaincords,cablesorwires,suchaspowercordsorcordstoconnect
theaccessorytoaPC.Ifthisproducthassuchacord,cableorwire,thenthefollowingwarningapplies:
WARNING
Handlingthecordonthisproductorcordsassociatedwithaccessoriessoldwiththisproductwillexpose
youtolead,achemicalknowntotheStateofCaliforniatocausecancer,andbirthdefectsorother
reproductiveharm.Washhandsafterhandling.
Savetheseinstructions.
©CopyrightLenovo2011
xv
xviUserGuide
Chapter1.ProductOverview
Thischapterprovidesinformationaboutthelocationsofconnectors,locatingimportantproductinformation,
computerfeatures,specications,operatingenvironment,andpreinstalledsoftwareprograms.
Thischaptercontainsthefollowingtopics:
•“Locatingcomputercontrols,connectors,andindicators”onpage1
•“Locatingimportantproductinformation”onpage11
•“Features”onpage14
•“Specications”onpage15
•“Operatingenvironment”onpage15
•“ThinkVantagetechnologiesandsoftware”onpage16
Locatingcomputercontrols,connectors,andindicators
Thissectionintroducesyoutothehardwarefeaturesofyourcomputer,andthengivesyouthebasic
informationyou'llneedtostarttakingadvantageofitsfunctions.
•“Frontview”onpage2
•“Right-sideview”onpage4
•“Left-sideview”onpage6
•“Rearview”onpage8
•“Bottomview”onpage7
•“Statusindicators”onpage9
©CopyrightLenovo2011
1
Frontview
Figure1.ThinkPadEdgeE420sfrontview
1UltraConnectwirelessantennas(left)
2Built-inmicrophone
3Integratedcamera4ThinkLight
5UltraConnectantennas(right)6Built-instereospeaker(right)
7Powerswitch8Memory-upgradeslot
9Fingerprintreader
10Systemandpower-statusindicators
11TrackPointpointingstick12TrackPointbuttons
13Touchpad
14PCIExpressMiniCardslotforwirelessLAN/WiMAX
15WWANcardslot16Volumecontrolbuttons
17Built-instereospeaker(left)
1UltraConnect™wirelessantennas(left)
5UltraConnectwirelessantennas(right)
Thebuilt-inantennasforthewirelesscommunicationarelocatedatthetopleftandthetoprightportionsof
yourcomputerdisplay.
Forthespeciclocationsofeachantenna,referto“LocationoftheUltraConnectwirelessantennas”on
page158
.
2Built-inmicrophone
Thebuilt-inmicrophonecapturessoundandvoicewhenitisusedwithanapplicationprogramcapable
ofhandlingaudio.
2UserGuide
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