- Lenovo Personal Computer User's Guide

Plugsandoutlets

Ifareceptacle(poweroutlet)thatyouintendtousewithyourcomputerequipmentappearstobedamaged

orcorroded,donotusetheoutletuntilitisreplacedbyaqualiedelectrician.

Donotbendormodifytheplug.Iftheplugisdamaged,contactthemanufacturertoobtainareplacement.

Donotshareanelectricaloutletwithotherhomeorcommercialappliancesthatdrawlargeamountsof

electricity;otherwise,unstablevoltagemightdamageyourcomputer,data,orattacheddevices.

Someproductsareequippedwithathree-prongedplug.Thisplugtsonlyintoagroundedelectricaloutlet.

Thisisasafetyfeature.Donotdefeatthissafetyfeaturebytryingtoinsertitintoanon-groundedoutlet.If

youcannotinserttheplugintotheoutlet,contactanelectricianforanapprovedoutletadapterortoreplace

theoutletwithonethatenablesthissafetyfeature.Neveroverloadanelectricaloutlet.Theoverallsystem

loadshouldnotexceed80percentofthebranchcircuitrating.Consultanelectricianformoreinformation

ifyouhavequestionsaboutpowerloadsandbranchcircuitratings.

Besurethatthepoweroutletyouareusingisproperlywired,easilyaccessible,andlocatedclosetothe

equipment.Donotfullyextendpowercordsinawaythatwillstressthecords.

Besurethatthepoweroutletprovidesthecorrectvoltageandcurrentfortheproductyouareinstalling.

Carefullyconnectanddisconnecttheequipmentfromtheelectricaloutlet.

Externaldevices

DonotconnectordisconnectanyexternaldevicecablesotherthanUniversalSerialBus(USB)and1394

cableswhilethecomputerpowerison;otherwise,youmightdamageyourcomputer.Toavoidpossible

damagetoattacheddevices,waitatleastvesecondsafterthecomputerisshutdowntodisconnect

externaldevices.

Heatandproductventilation

Computers,poweradapters,andmanyaccessoriescangenerateheatwhenturnedonandwhenbatteries

arecharging.Alwaysfollowthesebasicprecautions:

•Donotleaveyourcomputer,poweradapter,oraccessoriesincontactwithyourlaporanypartofyour

bodyforanextendedperiodwhentheproductsarefunctioningorwhenthebatteryischarging.Your

computer,poweradapter,andmanyaccessoriesproducesomeheatduringnormaloperation.Extended

contactwiththebodycouldcausediscomfortor,potentially,askinburn.

•Donotchargethebatteryoroperateyourcomputer,poweradapter,oraccessoriesnearammable

materialsorinexplosiveenvironments.

•Ventilationslots,fans,andheatsinksareprovidedwiththeproductforsafety,comfort,andreliable

operation.Thesefeaturesmightinadvertentlybecomeblockedbyplacingtheproductonabed,sofa,

carpet,orotherexiblesurface.Neverblock,cover,ordisablethesefeatures.

Inspectyourdesktopcomputerfordustaccumulationatleastonceeverythreemonths.Beforeinspecting

yourcomputer,turnoffthepowerandunplugthecomputer'spowercordfromtheelectricaloutlet;then

removeanydustfromventsandperforationsinthebezel.Ifyounoticeexternaldustaccumulation,then

examineandremovedustfromtheinsideofthecomputerincludingheatsinkinletns,powersupplyvents,

andfans.Alwaysturnoffandunplugthecomputerbeforeopeningthecover.Ifpossible,avoidoperating

yourcomputerwithintwofeetofhigh-trafcareas.Ifyoumustoperateyourcomputerinornearahigh-trafc

area,inspectand,ifnecessary,cleanyourcomputermorefrequently.

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