7.Removetheeightscrewsthatsecurethesystemboard.
Figure42.Removingthescrewsthatsecurethesystemboard
8.Slidethesystemboardtothefrontofthecomputerandthencarefullyliftthesystemboardoutofthe
chassis.Placethefailingsystemboardonaflat,clean,andstatic-protectivesurface.
9.Removethemicroprocessorfromthefailingsystemboardandinstallitonthenewsystemboard.See
“Replacingthemicroprocessor”onpage105.
10.Installthenewsystemboardintothechassisbyaligningtheeightscrewholesinthenewsystem
boardwiththecorrespondingmountingstudsonthechassis.Then,installtheeightscrewstosecure
thesystemboard.
11.Installtheheatsinkandfanassemblyandconnecttheheat-sink-and-fan-assemblycabletothenew
systemboard.See“Replacingtheheatsinkandfanassembly”onpage101.
Note:Ifnecessary,applytheappropriateamountofthermalgreaseonthebottomoftheheatsink
andfanassembly.
12.InstallallmemorymodulesandPCIExpresscardsremovedfromthefailingsystemboardontothenew
systemboard.See“Installingorreplacingamemorymodule”onpage87
and“Installingorreplacinga
PCIExpresscard”onpage84.
13.Refertoyourrecordtoconnectcablestothenewsystemboard.Youalsocanreferto“Locating
partsonthesystemboard”onpage72tohelpyoulocatetheconnectorsonthesystemboardand
connectcables.
14.Tocompletethereplacement,goto“Completingthepartsreplacement”onpage121.
Thefailingsystemboardmustbereturnedwithamicroprocessorsocketcovertoprotectthepinsduring
shippingandhandling.
Chapter9.ReplacingFRUs(machinetypes:10ASand10AU)109
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