Lenovo ThinkCentre Edge 72z - Replacing the System Board

10.Routethenewintegratedcameracable,andthenconnecttheintegratedcameracabletothesystem
board.See“Locatingpartsonthesystemboard”onpage86.
11.Reinstallthesystemboardshield.See“Removingandreinstallingthesystemboardshield”onpage101.
12.Goto“Completingthepartsreplacement”onpage124.
Replacingthesystemboard
Attention
Donotopenyourcomputerorattemptanyrepairbeforereadingandunderstandingthe“Importantsafety
information”intheSafety,Warranty,andSetupGuidethatcamewithyourcomputer.Toobtainacopyofthe
Safety,Warranty,andSetupGuide,goto:
http://www.lenovo.com/support
Thissectionprovidesinstructionsonhowtoreplacethesystemboard.
Toreplacethesystemboard,dothefollowing:
1.Removeallmediafromthedrivesandturnoffallattacheddevicesandthecomputer.Then,disconnect
allpowercordsfromelectricaloutletsanddisconnectallcablesthatareconnectedtothecomputer.
2.Placeasoft,cleantowelorclothonthedeskorotheratsurface.Holdthesidesofyourcomputerand
gentlylayitdownsothatthescreenisagainstthesurfaceandthecoverisfacingup.
3.Removethecomputercover.See“Removingthecomputercover”onpage94.
4.Removethesystemboardshield.See“Removingandreinstallingthesystemboardshield”onpage101.
5.Locatethesystemboardinthecomputer.See“LocatingmajorFRUsandCRUs”onpage82.
6.Removetheheatsinkassembly.See“Replacingtheheatsinkassembly”onpage104.
7.Removethemicroprocessor.See“Replacingthemicroprocessor”onpage106.
8.Removethememorymodules.See“Installingorreplacingamemorymodule”onpage113.
9.Removethebattery.See“Replacingthebattery”onpage111.
10.RemovetherearI/Oassemblytogainaccesstothesystemboard.See“ReplacingtherearI/O
assembly”onpage99
.
11.Notethelocationsofallcableconnectionsonthesystemboardanddisconnectallcables.See
“Locatingpartsonthesystemboard”onpage86.
12.Removethesevenscrewsthatsecurethesystemboardtothemainbracket.Carefullyliftthesystem
boardoutofthechassis.
Chapter9.ReplacingFRUs117