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Figure23.Removingtheheatsinkfanduct
5.Disconnectthepowersupplyassemblycablesfromalldrivesandfromthe24-pinpowerconnectorand
4-pinpowerconnectoronthesystemboard.See“Locatingpartsonthesystemboard”onpage9
.
Note:Youmightalsoneedtoreleasethepowersupplyassemblycablesfromsomecableclipsorties
thatsecurethecablestothechassis.Makesurethatyounotethecableroutingbeforedisconnecting
thecables.
6.Attherearofthecomputer,removethethreescrewsthatsecurethepowersupplyassembly.Pressthe
powersupplyclip1downwardtoreleasethepowersupplyassemblyandthenslidethepowersupply
assemblytothefrontofthecomputer.Liftthepowersupplyassemblyoutofthecomputer.
Figure24.Removingthepowersupplyassembly
7.Makesurethatthenewpowersupplyassemblyisthecorrectreplacement.Somepowersupply
assembliesautomaticallysensethevoltageoracceptuniversalinput,somepowersupplyassemblies
arevoltagespecic,andsomepowersupplyassemblieshaveavoltage-selectionswitch.Ifyourpower
supplyassemblyhasavoltage-selectionswitch,makesurethatyousetthevoltage-selectionswitch
tomatchthevoltageavailableatyourelectricaloutlet.Ifnecessary,useaballpointpentoslidethe
voltage-selectionswitchtothecorrectposition.
Ifthevoltagesupplyrangeinyourlocalcountryorregionis100–127Vac,setthevoltage-selection
switchto115V.
Ifthevoltagesupplyrangeinyourlocalcountryorregionis200–240Vac,setthevoltage-selection
switchto230V.
30ThinkCentreUserGuide
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