8.Removetheeightscrewsthatsecurethesystemboard.
Figure86.Removingtheeightscrewsthatsecurethesystemboard
9.Liftthesystemboardoutofthechassis.
10.Removethemicroprocessorfromthefailingsystemboardandinstallitonthenewsystemboard.See
“Replacingthemicroprocessor”onpage143.
11.Installthenewsystemboardintothechassisbyaligningtheeightmountingstudsinthechassiswiththe
correspondingholesinthenewsystemboard.Then,installtheeightscrewstosecurethesystemboard.
12.Installtheheatsinkandfanassemblyandconnecttheheatsinkandfanassemblycabletothenew
systemboard.See“Replacingtheheatsinkandfanassembly”onpage140.
13.InstallallmemorymodulesandPCIcardsremovedfromthefailingsystemboardonthenewsystem
board.See“Installingorreplacingamemorymodule”onpage127
and“InstallingorreplacingaPCI
card”onpage125.
14.Reconnectallremainingcablestothesystemboard.See“Locatingpartsonthesystemboard”
onpage81.
15.Pivottheopticaldrivebayassemblydownwarduntilitsnapsintoposition.
16.Tocompletethereplacement,goto“Completingthepartsreplacement”onpage160.
Thefailingsystemboardmustbereturnedwithamicroprocessorsocketcovertoprotectthepinsduring
shippingandhandling.
Toinstallthemicroprocessorsocketcover,dothefollowing:
1.Releasetheleversecuringthemicroprocessorretainerandopentheretainertoaccessthe
microprocessor.
2.Graspthemicroprocessoronthesidesandliftitstraightupandoutofthesocket.Donottouchthe
contactsonthemicroprocessorsocket.
Chapter10.ReplacingFRUs(machinetypes:3377,3386,and3388)147
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