Lenovo System x3550 M5 - Server Components

ThefollowingillustrationshowstheLEDsontherearoftheserver.
ac LED
(green)
dc LED
(green)
Power-supply
error LED (yellow)
00000000
00000000
00000000
0000000000
0000000000
0000000000
000000
000000
000000
0
0
0
00000
00000
00000
0
0
0
000
000
00
00
0
0
0
0
00
00
0000000
0000000
0000000
0
0
0
0
00
00
00
0
0
System-locator
LED (blue)
Power LED
(green)
System-error
LED (yellow)
Ethernet
activity LED
Ethernet
link LED
Power
supply 2
Power
supply 1
Figure23.LEDsontherear
•EthernetlinkLEDs:WhentheseLEDsarelit,theyindicatethatthereisanactivelinkconnectiononthe
10BASE-T,100BASE-TX,or1000BASE-TXinterfacefortheEthernetport.
•EthernetactivityLEDs:WhentheseLEDsarelit,theyindicatethattheserveristransmittingtoor
receivingsignalsfromtheEthernetLANthatisconnectedtotheEthernetport.
•Power-onLED:WhenthisLEDislitandnotflashing,itindicatesthattheserveristurnedon.Thestates
ofthepower-onLEDareasfollows:
Off:Powerisnotpresent,orthepowersupplyortheLEDitselfhasfailed.
Flashingrapidly(fourtimespersecond):Theserveristurnedoffandisnotreadytobeturnedon.
Thepower-controlbuttonisdisabled.Thislastsapproximately20seconds.
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”
onpage60
.
•acpowerLED:Eachhot-swapacpowersupplyhasanacpowerLED.WhentheacpowerLEDislit,it
indicatesthatsufficientpoweriscomingintothepowersupplythroughthepowercord.Duringtypical
operation,theacpowerLEDislit.ForanyothercombinationofLEDs,see“acpower-supplyLEDs”
onpage60.
•Power-supplyerrorLED:Whenthepower-supplyerrorLEDislit,itindicatesthatthepowersupply
hasfailed.
Note:Thepowersupply1isthedefault/primarypowersupply.Ifthepowersupply1fails,youmust
replacethepowersupplyimmediately.
Servercomponents
Thefollowingillustrationshowsthemajorcomponentsintheserver.
24LenovoSystemx3550M5InstallationandServiceGuide