Lenovo System x3250 M5 - Error Leds

ErrorLEDs
ThissectiondescribestheErrorLEDsonthesystemboardandthesuggestedactionstocorrectthe
detectedproblems.
Theillustrationshowsthesystem-boardLEDs.ThesystemboardhaserrorLEDsthatwillhelptolocate
thesourceoftheerror.Runthediagnosticprogramstofindoutthecauseoftheerror(see“Dynamic
SystemAnalysis”onpage124
).
Figure79.TheLEDsonthesystemboard
TheserverisdesignedsothatLEDsremainlitwhentheserverisconnectedtoanacpowersourcebutis
notturnedon,providedthatthepowersupplyisoperatingcorrectly.Thisfeaturehelpsyoutoisolatethe
problemwhentheoperatingsystemisshutdown.
Note:Whenyoudisconnectthepowersourcefromtheserver,youlosetheabilitytoviewtheLEDsbecause
theLEDsarenotlitwhenthepowersourceisremoved.Beforeyoudisconnectthepowersource,make
anoteofwhichLEDsarelit,includingtheLEDsthatarelitontheoperationinformationpanelandLEDs
insidetheserveronthesystemboard.
Manyerrorsarefirstindicatedbyalitsystem-errorLEDonthecontrol-panelassemblyoftheserver.Ifthis
LEDislit,oneormoreLEDselsewhereintheservermightalsobelitandcandirectyoutothesource
oftheerror.
BeforeyouworkinsidetheservertoviewtheLEDs,readthe“Safety”onpagev
and“Handling
static-sensitivedevices”onpage33.
Chapter4.Troubleshooting117