Led Indicators - Supermicro SYS-521C-NR User Manual

4.6 LED Indicators

BMC Heartbeat LED
A BMC Heartbeat LED is located at LED1 on the motherboard. When LED1 is blinking, the
BMC is functioning normally. Refer to the table below for more information.
Onboard Power LED
LE1 is the onboard Power LED. When this LED is on, the system is on. Turn off the system
and unplug the power cord before removing or installing components. Refer to the table below
for more information.
BMC Heartbeat LED Indicator
LED Color Definition
Green: Blinking BMC Normal
Onboard Power LED Indicator
LED Color Definition
System Off (power cable
Off
not connected)
Green System On
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Chapter 4: Motherboard Connections