Lenovo ThinkStation E31 - Page 169

Toreplacethesystemboard,dothefollowing:
1.Removeallmediafromthedrivesandturnoffallattacheddevicesandthecomputer.Then,disconnect
allpowercordsfromelectricaloutletsanddisconnectallcablesthatareconnectedtothecomputer.
2.Openthecomputercover.See“Openingthecomputercover”onpage120.
3.Removethefrontbezel.See“Removingandreinstallingthefrontbezel”onpage120.
4.Pivottheopticaldrivebayassemblyupwardtogainaccesstothesystemboard.See“Accessingthe
systemboardcomponentsanddrives”onpage122.
5.RemoveallmemorymodulesandPCIcardsthatarecurrentlyinstalled.See“Installingorreplacinga
memorymodule”onpage123and“InstallingorreplacingaPCIcard”onpage125.
6.Removetheheatsinkandfanassemblyfromthefailingsystemboard.See“Replacingtheheatsinkand
fanassembly”onpage140.
7.Carefullytakenoteofthelocationofallcableconnectionsonthesystemboardanddisconnectallthe
cables.See“Locatingpartsonthesystemboard”onpage82.
8.Removetheeightscrewsthatsecurethesystemboard.
Figure102.Removingtheeightscrewsthatsecurethesystemboard
9.Liftthesystemboardoutofthechassis.
10.Removethemicroprocessorfromthefailingsystemboardandinstallitonthenewsystemboard.See
“Replacingthemicroprocessor”onpage148.
11.Installthenewsystemboardintothechassisbyaligningtheeightmountingstudsinthechassiswiththe
correspondingholesinthenewsystemboard.Then,installtheeightscrewstosecurethesystemboard.
12.Installtheheatsinkandfanassemblyandconnecttheheatsinkandfanassemblycabletothenew
systemboard.See“Replacingtheheatsinkandfanassembly”onpage140.
Chapter11.ReplacingFRUs(formachinetypes:3688,3690,3691,3693,and3695)163