Computer Hardware User Manual
10.Installthescrewtosecurethecardreaderbrackettothechassis.
Figure67.Installingthescrewthatsecuresthecardreader
11.PivottheopticaldrivebayupwardandreconnectthecardreadercabletooneoftheUSBconnectors
onthesystemboard.See“Locatingpartsonthesystemboard”onpage77
.
12.Reinstallthefrontbezel.See“Removingandreinstallingthefrontbezel”onpage122.
13.Tocompletetheinstallationorreplacement,goto“Completingthepartsreplacement”onpage160.
Replacingthebattery
Attention:
Donotopenyourcomputerorattemptanyrepairbeforereadingandunderstandingthe“Importantsafetyinformation”
intheThinkCentreUserGuide.ToobtainacopyoftheThinkCentreUserGuide,goto:
http://www.lenovo.com/ThinkCentreUserGuides
Yourcomputerhasaspecialtypeofmemorythatmaintainsthedate,time,andcongurationinformationfor
built-infeatures.Thebatterykeepsthisinformationactivewhenyouturnoffthecomputer.
Thebatterynormallyrequiresnochargingormaintenancethroughoutitslife;however,nobatterylasts
forever.Ifthebatteryfails,thedate,time,andcongurationinformation,includingpasswords,arelost.An
errormessageisdisplayedwhenyouturnonthecomputer.
Beforeperformingthefollowingprocedure,besuretoreadandunderstandtheinformationaboutreplacing
anddisposingofthebatteryinthe“Batteries”and“Lithiumbatterynotice”sectionsoftheThinkCentre
SafetyandWarrantyGuide.
Toreplacethebattery,dothefollowing:
Chapter9.ReplacingFRUs(MachineTypes:4466,4471,4474,4477,4480,4485,4496,4498,4503,4512,4514,
4518,4554,7005,7023,7033,7035,7072,7079,and7177.)133