Personal Computer User Manual

10.Routethenewintegratedcameracable,andthenconnecttheintegratedcameracabletothesystem
board.See“Systemboardpartsandconnectors”onpage84.
11.Reinstallthesystemboardshield.See“Removingandreinstallingthesystemboardshield”onpage98.
12.Goto“Completingthepartsreplacement”onpage121.
Replacingthesystemboard
Attention
Donotopenyourcomputerorattemptanyrepairbeforereadingandunderstandingthe“Importantsafety
information”intheThinkCentreEdgeSafetyandWarrantyGuidethatcamewithyourcomputer.Toobtaina
copyoftheThinkCentreEdgeSafetyandWarrantyGuide,goto:
http://www.lenovo.com/support
Thissectionprovidesinstructionsonhowtoreplacethesystemboard.
Toreplacethesystemboard,dothefollowing:
1.Removeallmediafromthedrivesandturnoffallattacheddevicesandthecomputer.Then,disconnect
allpowercordsfromelectricaloutletsanddisconnectallcablesthatareconnectedtothecomputer.
2.Placeasoft,cleantowelorclothonthedeskorotheratsurface.Holdthesidesofyourcomputerand
gentlylayitdownsothatthescreenisagainstthesurfaceandthecoverisfacingup.
3.Removethecomputercover.See“Removingthecomputercover”onpage91.
4.Removethesystemboardshield.See“Removingandreinstallingthesystemboardshield”onpage98.
5.Locatethesystemboardinthecomputer.See“FRUlocations”onpage82.
6.Removetheheatsinkassembly.See“Replacingtheheatsinkassembly”onpage101.
7.Removethemicroprocessor.See“Replacingthemicroprocessor”onpage103.
8.Removethememorymodules.See“Installingorreplacingamemorymodule”onpage110.
9.Removethebattery.See“Replacingthebattery”onpage108.
10.RemovetherearI/Oassemblytogainaccesstothesystemboard.See“ReplacingtherearI/O
assembly”onpage96
.
11.Notethelocationsofallcableconnectionsonthesystemboardanddisconnectallcables.See“System
boardpartsandconnectors”onpage84.
12.Removethesevenscrewsthatsecurethesystemboardtothemainbracket.Carefullyliftthesystem
boardoutofthechassis.
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