Lenovo E520 User's Guide Page 95

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Chapter6.Replacingdevices
Youcanincreasethecapacityofthememoryortheharddiskdrivebyreplacingtheoriginal,built-in
devicewithanoptionalone.Or,ifyouneedto,youcanreplacethePCIExpressMiniCardbyfollowing
theproceduresinthissection.
“Staticelectricityprevention”onpage77
“Replacingthebattery”onpage77
“Replacingtheharddiskdrive”onpage79
“Replacingtheopticaldrive”onpage82
“InstallingandreplacingthePCIExpressMiniCardforwirelessWAN”onpage86
“InstallingandreplacingaPCIExpressMiniCardforwirelessLAN/WiMAXconnection”onpage90
“Replacingmemory”onpage93
“Replacingthekeyboard”onpage95
“ReplacingtheSIMcard”onpage103
Staticelectricityprevention
Staticelectricity,althoughharmlesstoyou,canseriouslydamagecomputercomponentsandoptions.
Improperhandlingofstatic-sensitivepartscancausedamagetothepart.Whenyouunpackanoption
orCRU,donotopenthestatic-protectivepackagecontainingthepartuntiltheinstructionsdirectyou
toinstallit.
WhenyouhandleoptionsorCRUs,orperformanyworkinsidethecomputer,takethefollowingprecautions
toavoidstatic-electricitydamage:
Limityourmovement.Movementcancausestaticelectricitytobuilduparoundyou.
Alwayshandlecomponentscarefully.Handleadapters,memorymodules,andothercircuitboardsbythe
edges.Nevertouchexposedcircuitry.
Preventothersfromtouchingcomponents.
Whenyouinstallastatic-sensitiveoptionorCRU,touchthestatic-protectivepackagecontainingthe
parttoametalexpansion-slotcoverorotherunpaintedmetalsurfaceonthecomputerforatleasttwo
seconds.Thisreducesstaticelectricityinthepackageandyourbody.
Whenpossible,removethestatic-sensitivepartfromthestatic-protectivepackagingandinstallthepart
withoutsettingitdown.Whenthisisnotpossible,placethestatic-protectivepackagingonasmooth,
levelsurfaceandplacethepartonit.
Donotplacethepartonthecomputercoverorothermetalsurface.
Replacingthebattery
Beforeyoustart,printtheseinstructions.
ThissystemmaynotsupportbatteriesthatarenotgenuineLenovo-madeorauthorized.Thesesystemswill
continuetoboot,butmaynotchargeunauthorizedbatteries.
Attention:Lenovohasnoresponsibilityfortheperformanceorsafetyofunauthorizedbatteries,and
providesnowarrantiesforfailuresordamagearisingoutoftheiruse.
Toreplacethebatterywithanewone,readthefollowingprerequisites.
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