Lenovo x3550 M5 - Server Components

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Ethernet
link LED
Ethernet
activity LED
System-error
LED (yellow)
Power-supply
error LED (yellow)
DC LED
(green)
AC LED
(green)
Power
supply 2
Power
supply 1
System-locator
LED (blue)
Power LED
(green)
Figure20.RearviewLEDs
•EthernetlinkLEDs:WhentheseLEDsarelit,theyindicatethatthereisanactivelinkconnectiononthe
10BASE-T,100BASE-TX,or1000BASE-TXinterfacefortheEthernetport.
•EthernetactivityLEDs:WhentheseLEDsarelit,theyindicatethattheserveristransmittingtoor
receivingsignalsfromtheEthernetLANthatisconnectedtotheEthernetport.
•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
SystemsDirectororIMM2.1WebinterfacetolightthisLEDremotely.
•System-errorLED:WhenthisLEDislit,itindicatesthatasystemerrorhasoccurred.AnLEDonthe
operatorinformationpanelisalsolittohelpisolatetheerror.
•DCpowerLED:Eachhot-swapacpowersupplyhasadcpowerLED.WhenthedcpowerLEDislit,it
indicatesthatthepowersupplyissupplyingadequatedcpowertothesystem.Duringtypicaloperation,
boththeacanddcpowerLEDsarelit.ForanyothercombinationofLEDs,see“acpower-supplyLEDs”
onpage61
.
•ACpowerLED:Eachhot-swapacpowersupplyhasanacpowerLED.WhentheacpowerLEDislit,it
indicatesthatsufficientpoweriscomingintothepowersupplythroughthepowercord.Duringtypical
operation,theacpowerLEDislit.ForanyothercombinationofLEDs,see“acpower-supplyLEDs”
onpage61.
•Power-supplyerrorLED:Whenthepower-supplyerrorLEDislit,itindicatesthatthepowersupply
hasfailed.
Note:Powersupply1isthedefault/primarypowersupply.Ifpowersupply1fails,youmustreplace
thepowersupplyimmediately.
Servercomponents
Thefollowingillustrationshowsthemajorcomponentsintheserver.
Theillustrationsinthisdocumentmightdifferslightlyfromyourhardware.
24LenovoSystemx3550M5InstallationandServiceGuide