Lenovo System x3500 M4

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Thumbscrew

Fan cage

assembly

Figure191.Fastenthumbscrewonfancage

Step7.Connectthefancageassemblypowercabletothesystemboard(see“Internalcableroutingand

connectors”onpage312).

Step8.Installtheairbafﬂe(see“Installingtheairbafﬂe”onpage190).

Step9.Installandlocktheleft-sidecover(see“Installingtheleft-sidecover”onpage185).

Ifyouhavereplacedaservercomponentorinstalledanoptionaldeviceintheserver,youneedtoreconnect

thepowercordsandallexternalcables,andturnontheserverandperipheraldevices.

Removingtheleft-sidecover/powercut-offswitchassembly

Usethisinformationtoremovetheleft-sidecover/powercut-offswitchassembly.

Readthesafetyinformationin“Safety”onpagevand“Installationguidelines”onpage35.

Ifyouarereplacingaservercomponentintheserver,youneedtoturnofftheserverandperipheraldevices,

anddisconnectthepowercordsandallexternalcables.

Toremovetheleft-sidecover/powercut-offswitchassembly,completethefollowingsteps.

Step1.Carefullyturntheserveronitssidesothatitislyingﬂat,withthecoverfacingup.

Attention:Donotallowtheservertofallover.

Step2.Unlockandremovetheleft-sidecover(see“Removingtheleft-sidecover”onpage184).

Step3.Removethecablefromthesystemboard(see“Internalcableroutingandconnectors”onpage312).

Step4.Removethescrewthatsecuresthepowercut-offswitchassemblyfromthechassiswall.

276Systemx3500M4InstallationandServiceGuide

Lenovo System x3500 M4 - Page 290