Computer Hardware User Manual

4.Removetheharddiskdrive.See“Replacingtheharddiskdrive”onpage134.
5.Pivottheopticaldrivebayassemblyupwardtogainaccesstothesystemboard.See“Accessingthe
systemboardcomponentsanddrives”onpage124.
6.RemoveallmemorymodulesandPCIcardsthatarecurrentlyinstalled.See“Installingorreplacinga
memorymodule”onpage125and“InstallingorreplacingaPCIcard”onpage126.
7.Removetheheatsinkandfanassemblyfromthefailingsystemboard.See“Replacingtheheatsinkand
fanassembly”onpage139.
8.Carefullytakenoteofthelocationofallcableconnectionsonthesystemboardanddisconnectallthe
cables.See“Locatingpartsonthesystemboard”onpage119.
9.Removetheeightscrewsthatsecurethesystemboard.
Figure89.Removingtheeightscrewsthatsecurethesystemboard
10.Liftthesystemboardoutofthechassis.
11.Removethemicroprocessorfromthefailingsystemboardandinstallitonthenewsystemboard.See
“Replacingthemicroprocessor”onpage147.
12.Installthenewsystemboardintothechassisbyaligningtheeightmountingstudsinthechassiswiththe
correspondingholesinthenewsystemboard.Then,installtheeightscrewstosecurethesystemboard.
13.Installtheheatsinkandfanassemblyandconnecttheheatsinkandfanassemblycabletothenew
systemboard.See“Replacingtheheatsinkandfanassembly”onpage139.
14.InstallallmemorymodulesandPCIcardsremovedfromthefailingsystemboardonthenewsystem
board.See“Installingorreplacingamemorymodule”onpage125and“InstallingorreplacingaPCI
card”onpage126.
15.Reconnectallremainingcablestothesystemboard.See“Locatingpartsonthesystemboard”on
page119.
Chapter9.ReplacingFRUs(MachineTypes:4466,4471,4474,4477,4480,4485,4496,4498,4503,4512,4514,
4518,4554,7005,7023,7033,7035,7072,7079,and7177.)151