4Jumpercapstorage
Usedtostorethejumpercap.Ajumpercapisencasedonthepinsbydefault.
SystemfanfaultLEDs
ThefollowingillustrationshowsthesystemfanfaultLEDsonthesystemboard.
Figure27.SystemfanfaultLEDs
1-8SystemfanfaultLEDs1to8
WhenaSystemfanfaultLEDonthesystemboardislit,itindicatesthatthecorrespondingsystemfanis
operatingtooslowlyorhasfailed.Tosolvetheproblem,youmightneedtoreinstallorreplacethesystem
fan.See“Replacingasystemfan”onpage139.Ifitisasystemboardproblem,contacttheLenovo
CustomerSupportCenter.
42ThinkServerRD550UserGuideandHardwareMaintenanceManual