
PlugsandoutletsIfareceptacle(poweroutlet)thatyouintendtousewithyourcomputerequipmentappearstobedamagedorcorroded,donotusetheoutletuntilitisreplacedbyaqualiedelectrician.Donotbendormodifytheplug.Iftheplugisdamaged,contactthemanufacturertoobtainareplacement.Donotshareanelectricaloutletwithotherhomeorcommercialappliancesthatdrawlargeamountsofelectricity;otherwise,unstablevoltagemightdamageyourcomputer,data,orattacheddevices.Someproductsareequippedwithathree-prongedplug.Thisplugtsonlyintoagroundedelectricaloutlet.Thisisasafetyfeature.Donotdefeatthissafetyfeaturebytryingtoinsertitintoanon-groundedoutlet.Ifyoucannotinserttheplugintotheoutlet,contactanelectricianforanapprovedoutletadapterortoreplacetheoutletwithonethatenablesthissafetyfeature.Neveroverloadanelectricaloutlet.Theoverallsystemloadshouldnotexceed80percentofthebranchcircuitrating.Consultanelectricianformoreinformationifyouhavequestionsaboutpowerloadsandbranchcircuitratings.Besurethatthepoweroutletyouareusingisproperlywired,easilyaccessible,andlocatedclosetotheequipment.Donotfullyextendpowercordsinawaythatwillstressthecords.Besurethatthepoweroutletprovidesthecorrectvoltageandcurrentfortheproductyouareinstalling.Carefullyconnectanddisconnecttheequipmentfromtheelectricaloutlet.ExternaldevicesDonotconnectordisconnectanyexternaldevicecablesotherthanUniversalSerialBus(USB)and1394cableswhilethecomputerpowerison;otherwise,youmightdamageyourcomputer.Toavoidpossibledamagetoattacheddevices,waitatleastvesecondsafterthecomputerisshutdowntodisconnectexternaldevices.HeatandproductventilationComputers,poweradapters,andmanyaccessoriescangenerateheatwhenturnedonandwhenbatteriesarecharging.Alwaysfollowthesebasicprecautions:Donotleaveyourcomputer,poweradapter,oraccessoriesincontactwithyourlaporanypartofyourbodyforanextendedperiodwhentheproductsarefunctioningorwhenthebatteryischarging.Yourcomputer,poweradapter,andmanyaccessoriesproducesomeheatduringnormaloperation.Extendedcontactwiththebodycouldcausediscomfortor,potentially,askinburn.Donotchargethebatteryoroperateyourcomputer,poweradapter,oraccessoriesnearammablematerialsorinexplosiveenvironments.Ventilationslots,fans,andheatsinksareprovidedwiththeproductforsafety,comfort,andreliableoperation.Thesefeaturesmightinadvertentlybecomeblockedbyplacingtheproductonabed,sofa,carpet,orotherexiblesurface.Neverblock,cover,ordisablethesefeatures.Inspectyourdesktopcomputerfordustaccumulationatleastonceeverythreemonths.Beforeinspectingyourcomputer,turnoffthepowerandunplugthecomputer'spowercordfromtheelectricaloutlet;thenremoveanydustfromventsandperforationsinthebezel.Ifyounoticeexternaldustaccumulation,thenexamineandremovedustfromtheinsideofthecomputerincludingheatsinkinletns,powersupplyvents,andfans.Alwaysturnoffandunplugthecomputerbeforeopeningthecover.Ifpossible,avoidoperatingyourcomputerwithintwofeetofhigh-trafcareas.Ifyoumustoperateyourcomputerinornearahigh-trafcarea,inspectand,ifnecessary,cleanyourcomputermorefrequently.CopyrightLenovo2013vii