Lenovo System x3550 M4 - Replacing a Power Supply

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Figure168.Powersupplyremoval

Ifyouareinstructedtoreturnthepowersupply,followallpackaginginstructions,anduseanypackaging

materialsforshippingthataresuppliedtoyou.

Replacingapowersupply

Usethisinformationtoreplaceapowersupply.

Replacingahot-swapacpowersupply

Usethisinformationtoreplaceahot-swapacpowersupply.

Thefollowingnotesdescribethetypeofpowersupplythattheserversupportsandotherinformationthat

youmustconsiderwhenyouinstallapowersupply:

•Beforeyouinstallanadditionalpowersupplyorreplaceapowersupplywithoneofadifferentwattage,

youmayusethePowerConﬁguratorutilitytodeterminecurrentsystempowerconsumption.Formore

informationandtodownloadtheutility,gotohttp://www.ibm.com/systems/bladecenter/resources/

powerconﬁg.html.

•Theservercomeswithonehot-swap12-voltoutputpowersupplythatconnectstopowersupplybay1.

Theinputvoltageis100-127Vacor200-240Vacauto-sensing.

•Powersuppliesintheservermustbewiththesamepowerratingorwattagetoensurethattheserverwill

operatecorrectly.Forexample,youcannotmix550-wattand750-wattpowersuppliesintheserver.

•Powersupply1isthedefault/primarypowersupply.Ifpowersupply1fails,youmustreplacethepower

supplywiththesamewattageimmediately.

•Youcanorderanoptionalpowersupplyforredundancy.

•Thesepowersuppliesaredesignedforparalleloperation.Intheeventofapower-supplyfailure,the

redundantpowersupplycontinuestopowerthesystem.Theserversupportsamaximumoftwo

powersupplies.

Statement5

Chapter6.Removingandreplacingcomponents251

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