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Replacingthebattery
Attention:
Donotopenyourcomputerorattemptanyrepairbeforereadingandunderstanding“Importantsafetyinformation”
onpage1.
Yourcomputerhasaspecialtypeofmemorythatmaintainsthedate,time,andsettingsforbuilt-infeatures,
suchasparallel-portassignments(configuration).Abatterykeepsthisinformationactivewhenyouturn
offthecomputer.
Thebatterynormallyrequiresnochargingormaintenancethroughoutitslife;however,nobatterylasts
forever.Ifthebatteryfails,thedate,time,andconfigurationinformation(includingpasswords)arelost.An
errormessageisdisplayedwhenyouturnonthecomputer.
Refertothe“Lithiumbatterynotice”intheSafety,Warranty,andSetupGuideforinformationaboutreplacing
anddisposingofthebattery.
Toreplacethebattery,dothefollowing:
1.Turnoffthecomputeranddisconnectallpowercordsfromelectricaloutlets.
2.Removethecomputercover.See“Removingthecomputercover”onpage150.
3.Removetheheatsinkfanduct.See“Replacingtheheatsinkandfanassembly”onpage189.
4.Dependingonyourcomputermodel,youmightneedtoremovethePCIExpressx16graphicscardfor
easieraccesstothebattery.See“InstallingorreplacingaPCIcard”onpage154.
5.Removetheoldbattery.
Figure109.Removingtheoldbattery
6.Installanewbattery.
Figure110.Installinganewbattery
7.ReinstallthePCIExpressx16graphicscardifyouhadremovedit.See“Installingorreplacinga
PCIcard”onpage154.
8.Reinstalltheheatsinkfanduct.See“Replacingtheheatsinkandfanassembly”onpage189.
9.Reinstallthecomputercoverandreconnectthecables.See“Completingthepartsreplacement”on
page216.
Chapter11.ReplacingFRUs(machinetypes:30A2and30A3)161
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