Lenovo System x3550 M5 - System Pulse Leds

acpower-supplyLEDs
acdcError(!)DescriptionActionNotes
OffOffOff
Noacpowertothe
serveroraproblem
withtheacpower
source.
1.Makesurethattheacpower
sourcemeetstheminimum
voltagerequirementforthe
installedpowersupplies.
2.Makesurethatthepower
cordisconnectedtoa
functioningpowersource.
3.Restarttheserver.Ifthe
errorremains,checkthe
power-supplyLEDs.
4.Iftheproblemremains,
replacethepowersupply.
Thisisanormal
conditionwhennoac
powerispresent.
OffOffOn
Thepowersupply
hasfailed.
Replacethepowersupply.
OffOn/
Blinking
Off
Thepowersupply
hasfailed.
Replacethepowersupply.
OffOn/
Blinking
On
Thepowersupply
hasfailed.
Replacethepowersupply.
OnOffOff
Powersupplynot
fullyseated,faulty
systemboard,or
thepowersupply
hasfailed.
1.Reseatthepowersupply.
2.UsethePowerConfigurator
utilitytoensurethatcurrent
systempowerconsumption
isunderlimitation.For
moreinformationandto
downloadtheutility,goto
http://www-03.ibm.com/
systems/bladecenter/
resources/powerconfig.html.
Typicallyindicatesa
power-supplyisnot
fullyseated.
OnOffOn
Thepowersupply
hasfailed.
Replacethepowersupply.
OnOn/
Blinking
On
Thepowersupply
hasfailed.
Replacethepowersupply.
Note:WhenthedcLEDisblinkingata1Hzrate,thePSUisatSTANDBYmode.Thatis,nodcpower
outputisfromthisPSU.
SystempulseLEDs
UsethisinformationtodiagnosepossibleerrorsthatareindicatedbythesystempulseLEDs.
ThefollowingLEDsareonthesystemboardandhelpyoutomonitorthesystempower-onandpower-off
sequencingandbootprogress(see“System-boardLEDs”onpage29forthelocationoftheseLEDs).
62LenovoSystemx3550M5InstallationandServiceGuide