Computer Hardware User Manual

Table Of Contents
9.Reinstallthefrontbezel.
10.Goto"CompletingtheFRUreplacement"onpage91.
ReplacingtheCMOSbattery
Attention
Donotopenyourcomputerorattemptanyrepairbeforereadingandunderstandingthe"Importantsafetyinformation"
intheThinkCentreSafetyandWarrantyGuidethatcamewithyourcomputer.ToobtainacopyoftheThinkCentre
SafetyandWarrantyGuide,goto:http://www.lenovo.com/support
ThissectionprovidesinformationonhowtoremoveandreplacetheCMOSbattery.
ToremoveorreplacetheCMOSbattery,dothefollowing:
IftheCMOSbatteryfails,thedate,time,andcongurationinformation(includingpasswords)arelost.An
errormessageisdisplayedwhenyouturnonthecomputer.
Important
Referto"Safetynotices(multi-lingualtranslations)"onpage6forinformationaboutreplacinganddisposing
ofthebattery.
CAUTION:
Whenreplacingthelithiumbattery,useonlyPartNumber33F8354oranequivalenttypebattery
recommendedbythemanufacturer.
1.Removethecomputercover.See"Removingthecover"onpage68.
2.Locatethebattery.See"Locatingpartsonthesystemboard"onpage71.
3.Removetheoldbattery.
4.Installthenewbattery.
5.Replacethecomputercover,andconnectthecables.
Note:Whenthecomputeristurnedonforthersttimeafterbatteryreplacement,anerrormessage
mightbedisplayed.Thisisnormalafterreplacingthebattery.
6.Turnonthecomputerandallattacheddevices.
7.UsetheSetupUtilityprogramtosetthedateandtimeandanypasswords.See"UsingtheSetup
Utility"intheUserGuide.
90ThinkCentreHardwareMaintenanceManual