6.Removethetwoscrewsthatsecurethefrontpanelconnectorsassemblytothechassisandthenrelease
thefrontpanelconnectorsassemblyfromthechassis.
7.Alignthescrewholesinthenewfrontpanelconnectorsassemblywiththeholesinthechassis.Install
thetwoscrewstosecuretheassembly.
8.Reconnectallthecablestothesystemboard.See“Locatingpartsonthesystemboard”onpage113.
9.Reinstalltheharddiskdrivefanbracketifremoved.
10.Reinstallthefrontbezel.
11.Goto“CompletingtheFRUreplacement”onpage108.
Replacingthepowerswitch/LEDassembly
Attention
Donotopenyourcomputerorattemptanyrepairbeforereadingandunderstandingthe“Importantsafetyinformation”
intheThinkStationSafetyandWarrantyGuidethatcamewithyourcomputer.ToobtainacopyoftheThinkStation
SafetyandWarrantyGuide,goto:
http://www.lenovo.com/support.
Thisproceduredescribeshowtoremoveandreplacethepowerswitch/LEDassembly.
1.Removethecomputercover.See“Removingthecover”onpage110.
2.Removethefrontbezel.See“Removingthefrontbezel”onpage114
3.Disconnectthepowerswitch/LEDassemblycablefromthesystemboard.See“Removingthefront
bezel”onpage114.
4.Notethepowerswitch/LEDassemblycableroutingandthepositionofthetwoLEDs.
5.RemovetheswitchandtheLEDsfromthebezel.
Chapter11.ReplacingFRUs(Type4155,4158,4218)135
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