Hazardousvoltage,current,andenergylevelsarepresentinsideanycomponentthathasthislabel
attached.Therearenoserviceablepartsinsidethesecomponents.Ifyoususpectawithoneofthese
parts,contactaservicetechnician.
Readthesafetyinformationin“Safety”onpagev
and“Installationguidelines”onpage31.
Ifyouarereplacingaservercomponentintheserver,youneedtoslidetheserveroutfromtherack
enclosure,turnofftheserverandperipheraldevices,anddisconnectthepowercordsandallexternalcables.
Toreplacethefixedpowersupply,completethefollowingsteps.
Step1.Placethenewpowersupplyintothebay.
Figure147.Fixedpowersupplyinstallation
Step2.Tightenthecaptivethumbscrewthatsecuresthepowersupplytothechassisbottom.
Step3.Fastenthescrewthatholdsthepowersupplytotherearofthechassis.
Step4.Connecttheinternalpower-supplycablefromthepowersupplytothepowerconnectorsonthe
systemboard(see“System-boardinternalconnectors”onpage26forthelocationsofthepower
connectorsonthesystemboard).
Step5.Routetheinternalpower-supplycables,securingthemwiththeretention-clips.
Step6.Testthepowersupply:
a.Connectoneendoftheacpowercordforthenewpowersupplyintotheconnectoronthe
backofthepowersupply,andconnecttheotherendofthepowercordintoaproperly
groundedelectricaloutlet.
b.MakesurethatthestandbypowerLEDonthesystemboardislit(see“System-boardLEDs”
onpage29);ifthestandbypowerLEDisnotlit,discontinuethisprocedureandobtaina
newpowersupply.
c.Pressthepower-controlbutton.Makesurethatthepower-onLEDonthefrontoftheserver
islit.
218LenovoSystemx3250M5InstallationandServiceGuide
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