Note:Dependingonthemodel,yourservermightlookslightlydifferentfromtheillustrationsinthistopic.
TheserverisdesignedsothatLEDsremainlitwhentheserverisconnectedtoanacpowersourcebutis
notturnedon,providedthatthepowersupplyisoperatingcorrectly.Thishelpsyoutoisolateproblems
whentheserverisnotturnedon.ManyerrorsarerstindicatedbyaliterrorLEDonthediagnosticpanelof
someservermodels.IfanLEDislit,oneormoreLEDselsewhereintheservermightalsobelittodirect
youtothesourceoftheerror.
ThefollowingillustrationshowstheTMMstatusLEDandsystemfanerrorLEDsonthesystemboard.
Figure41.SystemboardLEDs
1TMMstatusLED(alsoknownasBMCstatusLED)
ThisLEDindicatesthestatusoftheonboardThinkServerManagementModule(TMM,alsoknownasBMC).
TMMstatusLED
Color
Description
OnGreen
TheTMMisnotready.
Off
None
TheTMMhasnopowerorhasfailed.
Blinking
Green
TheTMMisworking.
2-5SystemfanerrorLEDs
WhenasystemfanerrorLEDonthesystemboardislit,itindicatesthatthecorrespondingsystemfanis
operatingslowlyorhasfailed.Tosolvetheproblem,youmightneedtoreinstallorreplacethesystemfan.
See“Replacingasystemfan”onpage170
.Ifitisasystemboardproblem,contacttheLenovoCustomer
SupportCenter.
56ThinkServerRD430UserGuide
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