Specifications

Replacingthepowersupplyassembly
Attention:
Donotopenyourcomputerorattemptanyrepairbeforereadingandunderstandingthe“ImportantSafety
Information”onpage1.
Thisdocumentprovidesinstructionsonhowtoreplacethepowersupplyassembly.
CAUTION:
Neverremovethecoveronapowersupplyoranypartthathasthefollowinglabelattached.
Hazardousvoltage,current,andenergylevelsarepresentinsideanycomponentthathasthislabel
attached.Therearenoserviceablepartsinsidethesecomponents.
CAUTION:
Turnoffthecomputerandwaitthreetofiveminutestoletthecomputercoolbeforeremovingthe
computercover.
Toreplacethepowersupplyassembly,dothefollowing:
1.Removeallmediafromthedrivesandturnoffallattacheddevicesandthecomputer.Then,disconnect
allpowercordsfromelectricaloutletsanddisconnectallcablesthatareconnectedtothecomputer.
2.Removeanylockingdevicethatsecuresthecomputercover,suchasapadlockoranintegrated
cablelock.
3.Removethecomputercover.See“Removingthecomputercover”onpage82.
4.Placethecomputeronitssidetogaineasieraccesstothepowersupply.
5.Disconnectthepowersupplyassemblycablesfromthesystemboardandthedrives.Insomemodels,
youmightneedtodisconnectthepowersupplyassemblycablesfromthePeripheralComponent
Interconnect(PCI)cards.
6.Removethesixscrewsthatsecurethepowersupplyasshowninthefollowingillustration.
Chapter10.ReplacingFRUs123