Lenovo System x3650 M4 HD - Server Power Features

•EthernetactivityLEDs:WhentheseLEDsarelit,theyindicatethattheserveristransmittingtoor
receivingsignalsfromtheEthernetLANthatisconnectedtotheEthernetport.
•EthernetlinkLEDs:WhentheseLEDsarelit,theyindicatethatthereisanactivelinkconnectiononthe
10BASE-T,100BASE-TX,or1000BASE-TXinterfacefortheEthernetport.
•ACpowerLED:Eachhot-swapacpowersupplyhasanacpowerLED.WhentheacpowerLEDislit,it
indicatesthatsufficientpoweriscomingintothepowersupplythroughthepowercord.Duringtypical
operation,theacpowerLEDislit.ForanyothercombinationofLEDs,see“ACpower-supplyLEDs”on
page131
.
•DCpowerLED:Eachhot-swapacpowersupplyhasadcpowerLED.WhenthedcpowerLEDislit,it
indicatesthatthepowersupplyissupplyingadequatedcpowertothesystem.Duringtypicaloperation,
boththeacanddcpowerLEDsarelit.ForanyothercombinationofLEDs,see“ACpower-supply
LEDs”onpage131.
•INOKpowerLED:Eachhot-swapdcpowersupplyhasanINOKpowerLED.WhentheINOKpower
LEDislit,itindicatesthatsufficientpoweriscomingintothepowersupplythroughthepowercord.
Duringtypicaloperation,boththeINOKandOUTOKpowerLEDsarelit.Foranyothercombinationof
LEDs,see“DCpower-supplyLEDs”onpage133
.
•OUTOKpowerLED:Eachhot-swapdcpowersupplyhasanOUTOKpowerLED.WhentheOUT
OKpowerLEDislit,itindicatesthatthepowersupplyissupplyingadequatedcpowertothesystem.
Duringtypicaloperation,boththeINOKandOUTOKpowerLEDsarelit.Foranyothercombinationof
LEDs,see“DCpower-supplyLEDs”onpage133
.
•Power-supplyerrorLED:Whenthepower-supplyerrorLEDislit,itindicatesthatthepowersupply
hasfailed.
Note:Powersupply1isthedefault/primarypowersupply.Ifpowersupply1fails,youmustreplace
thepowersupplyimmediately.
•Power-onLED:WhenthisLEDislitandnotflashing,itindicatesthattheserveristurnedon.Thestates
ofthepower-onLEDareasfollows:
Off:Powerisnotpresent,orthepowersupplyortheLEDitselfhasfailed.
Flashingrapidly(4timespersecond):Theserveristurnedoffandisnotreadytobeturnedon.The
power-controlbuttonisdisabled.Thiswilllastapproximately5to10seconds.
Flashingslowly(oncepersecond):Theserveristurnedoffandisreadytobeturnedon.Youcan
pressthepower-controlbuttontoturnontheserver.
Lit:Theserveristurnedon.
•System-locatorLED:UsethisLEDtovisuallylocatetheserveramongotherservers.Youcanuse
SystemsDirectororIMM2webinterfacetolightthisLEDremotely.
•System-errorLED:WhenthisLEDislit,itindicatesthatasystemerrorhasoccurred.AnLEDonthelight
pathdiagnosticspanelisalsolittohelpisolatetheerror.
Serverpowerfeatures
Whentheserverisconnectedtoanacpowersourcebutisnotturnedon,theoperatingsystemdoesnot
run,andallcorelogicexceptfortheintegratedmanagementmoduleII(IMM2)isshutdown;however,the
servercanrespondtorequestsfromIMM2,suchasaremoterequesttoturnontheserver.
Thepower-onLEDflashestoindicatethattheserverisconnectedtoanacpowersourcebutisnotturnedon.
Turningontheserver
Usethisinformationfordetailsaboutturningontheserver.
Approximately5secondsaftertheserverisconnectedtopower,oneormorefansmightstartrunningto
providecoolingwhiletheserverisconnectedtopowerandthepower-onbuttonLEDwillblinkquickly.
22LenovoSystemx3650M4HDInstallationandServiceGuide