Lenovo System x3550 M4 - Server Power Features

•System-locatorLED:UsethisLEDtovisuallylocatetheserveramongotherservers.Youcanuse
SystemsDirectororIMM2webinterfacetolightthisLEDremotely.
•System-errorLED:WhenthisLEDislit,itindicatesthatasystemerrorhasoccurred.AnLEDonthelight
pathdiagnosticspanelisalsolittohelpisolatetheerror.
Serverpowerfeatures
Whentheserverisconnectedtoanacpowersourcebutisnotturnedon,theoperatingsystemdoesnot
run,andallcorelogicexceptfortheintegratedmanagementmoduleisshutdown.
However,theservercanrespondtorequestsfromIMM,suchasaremoterequesttoturnontheserver.The
power-onLEDflashestoindicatethattheserverisconnectedtoanacpowersourcebutisnotturnedon.
Turningontheserver
Usethisinformationtoturnontheserver.
Approximately5secondsaftertheserverisconnectedtopower,oneormorefansmightstartrunningto
providecoolingwhiletheserverisconnectedtopowerandthepower-onbuttonLEDwillblinkquickly.
Approximately5to10secondsaftertheserverisconnectedtopower,thepower-controlbuttonbecomes
active(thepower-onLEDwillblinkslowly),andoneormorefansmightstartrunningtoprovidecoolingwhile
theserverisconnectedtopower.Youcanturnontheserverbypressingthepower-controlbutton.
Theservercanalsobeturnedoninanyofthefollowingways:
•Ifapowerfailureoccurswhiletheserveristurnedon,theserverwillrestartautomaticallywhenpower
isrestored.
•IfyouroperatingsystemsupportstheWakeonLANfeature,theWakeonLANfeaturecanturnonthe
server.
Notes:
1.When4GBormoreofmemory(physicalorlogical)isinstalled,somememoryisreservedforvarious
systemresourcesandisunavailabletotheoperatingsystem.Theamountofmemorythatisreserved
forsystemresourcesdependsontheoperatingsystem,theconfigurationoftheserver,andthe
configuredPCIoptions.
2.Ethernet1connectorsupportsWakeonLANfeature.
3.Whenyouturnontheserverwiththegraphicaladaptersinstalled,thelogodisplaysonthescreenafter
approximately3minutes.Thisisnormaloperationwhilethesystemloads.
Turningofftheserver
Usethisinformationtoturnofftheserver.
Whenyouturnofftheserverandleaveitconnectedtopower,theservercanrespondtorequeststothe
serviceprocessor,suchasaremoterequesttoturnontheserver.Whiletheserverremainsconnectedto
power,oneormorefansmightcontinuetorun.Toremoveallpowerfromtheserver,youmustdisconnectit
fromthepowersource.
Someoperatingsystemsrequireanorderlyshutdownbeforeyouturnofftheserver.Seeyour
operating-systemdocumentationforinformationaboutshuttingdowntheoperatingsystem.
Statement5
Chapter1.TheSystemx3550M4server21