4.Removetheharddiskdrivefromthechassis.See“Replacingtheprimaryharddiskdrive”onpage92.
5.Removethepowersupplyassemblyfromthechassis.See“Replacingthepowersupplyassembly”
onpage97.
6.RemoveallmemorymodulesandPCIcardsthatarecurrentlyinstalled.See“Installingorreplacinga
memorymodule”onpage89and“InstallingorreplacingaPCIcard”onpage86.
7.Carefullytakenoteofthelocationsofallcableconnectionsonthesystemboardanddisconnectall
thecables.See“Locatingpartsonthesystemboard”onpage74.
8.Removetheheatsinkandfanassemblyfromthefailingsystemboard.See“Replacingtheheatsinkand
fanassembly”onpage99.
9.Removetheeightscrewsthatsecurethesystemboard.
Figure34.Removingtheeightscrewsthatsecurethesystemboard
10.Carefullyslidethesystemboardsothatitcanbereleasedfromthemountingstudsthatsecurethe
systemboardinplace.
11.Liftthesystemboardoutofthechassis.
12.Removethemicroprocessorfromthefailingsystemboardandinstallitonthenewsystemboard.See
“Replacingthemicroprocessor”onpage101.
13.Installthenewsystemboardintothechassisbyaligningtheeightmountingstudsinthechassiswiththe
correspondingholesinthenewsystemboard.Carefullyslidethenewsystemboardintothechassisuntil
itissecuredinplacebythemountingstuds.Then,installtheeightscrewstosecurethesystemboard.
14.Installtheheatsinkandfanassemblyandconnecttheheatsinkandfanassemblycabletothenew
systemboard.See“Replacingtheheatsinkandfanassembly”onpage99.
15.Installtheharddiskdrive.See“Replacingtheprimaryharddiskdrive”onpage92.
16.Installthepowersupplyassembly.See“Replacingthepowersupplyassembly”onpage97.
104ThinkCentreEdgeHardwareMaintenanceManual
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