Lenovo x3250 m6 - System Pulse Leds

Thefollowingtabledescribestheproblemsthatareindicatedbyvariouscombinationsofthepower-supply
LEDsandsuggestedactionstocorrectthedetectedproblems.
Table6.Power-supplyLEDs
ac
power
LED
dcpower
LED
Power-supply
errorLED
DescriptionAction
OnOnOff
NormaloperationNoactionneeded.
OffOffOff
Noacpowertothe
serveroraproblem
withtheacpower
source.
Thissymptomisa
normalcondition
whennoacpoweris
present.
1.Checktheacpowertotheserver.
2.Makesurethatthepowercordisconnectedtoa
functioningpowersource.
3.Restarttheserver.Iftheerrorremains,checkthe
power-supplyLEDs.
4.Iftheproblemremains,replacethepower-supply.
OnOffOff
Faultysystemboard
orfaultypower
supply
Thesymptom
typicallyindicates
thatapowersupply
isnotfullyseated.
Thisisanormal
conditionbefore
turningonthe
system.
1.Turnofftheserveranddisconnectthepowercord
fromtheserver;then,reconnectthepowercord.
2.Ifthesystemboarderror(fault)LEDisnotlit,
replacethepowersupply.
3.(Trainedtechnicianonly)Ifthesystemboarderror
LEDislit,replacethesystemboard.
OnOffor
Flashing
On
FaultypowersupplyReplacethepowersupply.
OnOnOn
Powersupplyis
faultybutstill
operational.
Replacethepowersupply.
SystempulseLEDs
ThissectiondescribesthesystempulseLEDsonthesystemboardthatmonitorsthesystempower-onand
power-offandbootprogress.
ThefollowingLEDsareonthesystemboardandmonitorthesystempower-onandpower-offsequencing
andbootprogress.ForthelocationoftheseLEDs,see“System-boardLEDs”onpage24
.
CPLDheartbeatLED:IftheLEDflashesat1Hz,itisfunctioningproperlyandnoactionisnecessary.Ifthe
LEDisnotflashing,replacethesystemboard(Trainedtechnicianonly).
IMM2heartbeatLED:TheLEDstatusshowsthefollowingdifferentstagesoftheIMM2heartbeatsequencing
process:
1.WhenthisLEDisblinkingfast(approximately4Hz),thisindicatesthattheIMM2codeisintheloading
process.
2.WhenthisLEDgoesoffmomentarily,thisindicatesthattheIMM2codehasloadedcompletely.
3.WhenthisLEDgoesoffmomentarilyandthenstartsblinkingslowing(approximately1Hz),thisindicates
thatIMM2isfullyoperational.Youcannowpressthepower-controlbuttontopowerontheserver.
Chapter5.Troubleshooting55