Lenovo System x3500 M5 Type 5464 - System Pulse Leds

Table13.Power-supplyLEDs
ACPower-supplyLEDs
ACDCErrorDescriptionActionNotes
OnOnOff
Normaloperation
OffOffOff
Noacpowertotheserver
oraproblemwiththeac
powersource.
1.Checktheacpower
totheserver.
2.Makesurethat
thepowercord
isconnectedtoa
functioningpower
source.
3.Restarttheserver.
Iftheerrorremains,
checkthepower
supplyLEDs.
4.Iftheproblem
remains,replace
thepowersupply.
Thisisanormal
conditionwhenno
acpowerispresent.
OffOffOn
Faultypower-supply.
1.Makesurethat
thepowercord
isconnectedtoa
functioningpower
source.
2.Replacethepower
supply.
Thishappensonly
whenasecondpower
supplyisproviding
powertotheserver.
OffOnOff
FaultypowersupplyReplacethepowersupply.
OffOnOn
FaultypowersupplyReplacethepowersupply.
OnOffOff
Powersupplynotfully
seated,faultysystem
board,orfaultypower
supply
1.Reseatthepower
supply.
2.Ifthesystemboard
errorLEDisnotlit,
replacethepower
supply.
3.(Trainedtechnician
only)Ifthesystem
boarderrorLEDislit,
replacethesystem
board.
Typicallyindicatesthat
apowersupplyisnot
fullyseated.
OnOffor
Flashing
On
FaultypowersupplyReplacethepowersupply.
OnOnOn
Powersupplyisfaultybut
stilloperational
Replacethepowersupply.
SystempulseLEDs
ThissectiondescribesthesystempulseLEDsonthesystemboardthatmonitorsthesystempower-onand
power-offandbootprogress.
ThefollowingLEDsareonthesystemboardandmonitorthesystempower-onandpower-offsequencing
andbootprogress(see“System-boardLEDsandcontrols”onpage28forthelocationoftheseLEDs).
138Systemx3500M5InstallationandServiceGuide