Lenovo ThinkStation E31 - Replacing the Power Supply Assembly

9.Reinstallthefrontbezel.See“Removingandreinstallingthefrontbezel”onpage87.
Whattodonext:
•Toworkwithanotherpieceofhardware,gototheappropriatesection.
•Tocompletetheinstallationorreplacement,goto“Completingthepartsreplacement”onpage118.
Replacingthepowersupplyassembly
Attention:
Donotopenyourcomputerorattemptanyrepairbeforereadingandunderstanding“ImportantSafetyInformation”
onpage1.
Thissectionprovidesinstructionsonhowtoreplacethepowersupplyassembly.
Althoughtherearenomovingpartsinyourcomputerafterthepowercordhasbeendisconnected,the
followingwarningsarerequiredforyoursafetyandproperUnderwritersLaboratories(UL)certication.
CAUTION:
Hazardousmovingparts.Keepngersandotherbodypartsaway.
CAUTION:
Neverremovethecoveronapowersupplyoranypartthathasthefollowinglabelattached.
Hazardousvoltage,current,andenergylevelsarepresentinsideanycomponentthathasthislabel
attached.Therearenoserviceablepartsinsidethesecomponents.Ifyoususpectaproblemwith
oneoftheseparts,contactaservicetechnician.
Toreplacethepowersupplyassembly,dothefollowing:
1.Turnoffthecomputeranddisconnectallpowercordsfromelectricaloutlets.
2.Removethecomputercover.See“Removingthecomputercover”onpage86.
3.Disconnectthepowersupplyassemblycablesfromthesystemboardandalldrives.See“Locating
partsonthesystemboard”onpage74.
4.Releasethepowersupplyassemblycablesfromthecableclipsandtiesinthechassis.
Chapter10.ReplacingFRUs(formachinetypes:2551,2552,2553,2554,and2555)111