Lenovo x3250 m6 - Light Path Diagnostics; Error Leds

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Lightpathdiagnostics
LightpathdiagnosticsisasystemofLEDsonvariousexternalandinternalcomponentsoftheserverthat
leadsyoutothefailedcomponent.Whenanerroroccurs,LEDsarelitalongthepathofthefrontpanel,the
operatorinformationpanel,thenonthefailedcomponent.ByviewingtheLEDsinaparticularorder,you
canoftenidentifythesourceoftheerror.
WhenLEDsarelittoindicateanerror,theyremainlitwhentheserveristurnedoff,iftheserverisstill
connectedtopowerandthepowersupplyisoperatingcorrectly.
BeforeyouworkinsidetheservertoviewlightpathdiagnosticsLEDs,readthesafetyinformation“Safety”
onpagev
and“Handlingstatic-sensitivedevices”onpage88.
Ifanerroroccurs,viewthelightpathdiagnosticsLEDsandlookattheoperatorinformationpanelon
thefrontoftheserver.
ThefollowingtabledescribestheLEDsontheoperatorinformationpanelandsuggestedactionstocorrect
thedetectedproblems.
Table5.Lightpathdiagnostics:LEDstatusandactions
LEDDescriptionAction
System-locatorLED
(blue)
ThisLEDisusedasapresencedetection
LED.YoucanuseSystemsDirectoror
IMM2tolightthisLEDremotely.
UsethisLEDtolocatetheserveramong
otherserversvisually.
ChecklogLED
(amber)
LEDon:Anerrorhasoccurredandcannot
beisolatedwithoutperformingcertain
procedures.
1.ChecktheIMM2eventlogandthe
system-errorlogforinformationabout
theerror.
2.Savethelogifnecessaryandclearthe
logafterward.
System-errorLED
(amber)
LEDon:Anerrorhasoccurred.
1.Checkthesystem-locatorLED
andchecklogLEDandfollowthe
instructions.
2.ChecktheIMM2eventlogandthe
system-errorlogforinformationabout
theerror.
3.Savethelogifnecessaryandclearthe
logafterward.
ErrorLEDs
ThissectiondescribestheerrorLEDsonthesystemboardandthesuggestedactionstocorrectthe
detectedproblems.
ThesystemboardhaserrorLEDsthatwillhelptolocatethesourceoftheerror.Runthediagnosticprograms
tofindoutthecauseoftheerror.See“DynamicSystemAnalysis”onpage58.
TheserverisdesignedsothatLEDsremainlitwhentheserverisconnectedtoanacpowersourcebutis
notturnedon,providedthatthepowersupplyisoperatingcorrectly.Thisfeaturehelpsyoutoisolatethe
problemwhentheoperatingsystemisshutdown.
Chapter5.Troubleshooting53