DCpower-supplyLEDs
INOUTError(!)DescriptionActionNotes
4.Iftheproblemremains,
replacethepower-supply.
OffOffOn
Thepowersupply
hasfailed.
Replacethepowersupply.
OffOn/
Blinking
Off
Thepowersupply
hasfailed.
Replacethepowersupply.
OffOn/
Blinking
On
Thepowersupply
hasfailed.
Replacethepowersupply.
OnOffOff
Power-supplynot
fullyseated,faulty
systemboard,or
thepowersupply
hasfailed.
1.Reseatthepowersupply.
2.UsethePowerConfigurator
utilitytoensurecurrent
systempowerconsumption
isunderlimitation.For
moreinformationandto
downloadtheutility,go
tohttp://www.ibm.com/
systems/bladecenter/
resources/powerconfig.html.
3.ChecktheerrorLEDson
thesystemboardandthe
IMM2errormessages.Follow
stepsin“Powerproblems”on
page91and“Solvingpower
problems”onpage101until
theproblemissolved.
Typicallyindicatesa
power-supplyisnot
fullyseated.
OnOffOn
Thepowersupply
hasfailed.
Replacethepowersupply.
OnOn/
Blinking
On
Thepowersupply
hasfailed.
Replacethepowersupply.
SystempulseLEDs
ThefollowingLEDsareonthesystemboardandmonitorthesystempower-onandpower-offsequencing
andbootprogress(see“System-boardLEDs”onpage32forthelocationoftheseLEDs).
Table5.SystempulseLEDs
LEDDescriptionAction
IMM2heartbeatIMM2heartbeatbootprocess.
Thefollowingstepsdescribethedifferentstages
oftheIMM2heartbeatsequencingprocess.
1.WhenthisLEDisblinkingfast
(approximately4Hz),thisindicates,
thattheIMM2codeisintheloading
process.
2.WhenthisLEDgoesoffmomentarily,this
indicatesthattheIMM2codehasloaded
completely.
3.WhenthisLEDgoesoffmomentarilyand
thenstartsblinkingslowing(approximately
1Hz),thisindicatesthatIMM2isfully
operational.Youcannowpressthe
74LenovoSystemx3650M5InstallationandServiceGuide