Personal Computer User Manual

Yourcomputerhasaspecialtypeofmemorythatmaintainsthedate,time,andsettingsforbuilt-infeatures,
suchasparallel-portassignments(conguration).Abatterykeepsthisinformationactivewhenyouturn
offthecomputer.
Thebatterynormallyrequiresnochargingormaintenancethroughoutitslife;however,nobatterylasts
forever.Ifthebatteryfails,thedate,time,andcongurationinformation(includingpasswords)arelost.An
errormessageisdisplayedwhenyouturnonthecomputer.
Refertothe“Lithiumbatterynotice”intheThinkCentreSafetyandWarrantyGuideforinformationabout
replacinganddisposingofthebattery.
Toreplacethebattery,dothefollowing:
1.Turnoffthecomputeranddisconnectallpowercordsfromelectricaloutlets.
2.Removethecomputercover.See“Removingthecomputercover”onpage14.
3.Locatethebattery.See“Locatingpartsonthesystemboard”onpage10.
4.Removetheoldbattery.
Figure18.Removingtheoldbattery
5.Installanewbattery.
Figure19.Installinganewbattery
6.Reinstallthecomputercoverandconnectthecables.See“Completingthepartsreplacement”on
page38
.
Note:Whenthecomputeristurnedonforthersttimeafterreplacingthebattery,anerrormessage
mightbedisplayed.Thisisnormalafterreplacingthebattery.
7.Turnonthecomputerandallattacheddevices.
8.UsetheSetupUtilityprogramtosetthedate,time,andanypasswords.SeeChapter4“UsingtheSetup
Utilityprogram”onpage49.
Whattodonext:
•Toworkwithanotherpieceofhardware,gototheappropriatesection.
•Tocompletetheinstallationorreplacement,goto“Completingthepartsreplacement”onpage38.
Chapter2.Installingorreplacinghardware23