Lenovo ThinkCentre Edge 71 - Page 101

4.RemoveallmemorymodulesandPCIcardsthatarecurrentlyinstalled.See“Installingorreplacinga
memorymodule”onpage86and“InstallingorreplacingaPCIcard”onpage82.
5.Carefullytakenoteofthelocationsofallcableconnectionsonthesystemboardanddisconnectall
thecables.See“Locatingpartsonthesystemboard”onpage77.
6.Removetheheatsinkandfanassemblyfromthefailingsystemboard.See“Replacingtheheatsinkand
fanassembly”onpage90.
7.Removethesixscrewsthatsecurethesystemboard.
Figure25.Removingthesixscrewsthatsecurethesystemboard
8.Carefullyslidethesystemboardsothatitcanbereleasedfromthemountingstudsthatsecurethe
systemboardinplace.
9.Liftthesystemboardoutofthechassis.
10.Removethemicroprocessorfromthefailingsystemboardandinstallitonthenewsystemboard.
See“Replacingthemicroprocessor”onpage93.
11.Installthenewsystemboardintothechassisbyaligningthesixmountingstudsinthechassiswiththe
correspondingholesinthenewsystemboard.Carefullyslidethenewsystemboardintothechassisuntil
itissecuredinplacebythemountingstuds.Then,installthesixscrewstosecurethesystemboard.
12.Installtheheatsinkandfanassemblyandconnecttheheatsinkandfanassemblycabletothenew
systemboard.See“Replacingtheheatsinkandfanassembly”onpage90.
13.InstallallmemorymodulesandPCIcardsremovedfromthefailingsystemboardonthenewsystem
board.See“Installingorreplacingamemorymodule”onpage86and“InstallingorreplacingaPCI
card”onpage82.
14.Reconnectallremainingcablestothesystemboard.See“Locatingpartsonthesystemboard”
onpage77
.
Chapter8.ReplacingFRUs(MachineTypes:1577,1579,and1607)97