Supermicro A+ Server AS -1115CS-TNR - LED Indicators

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Chapter 4: Motherboard Connections
4.5 LED Indicators
BMC LAN Port LEDs
A dedicated BMC LAN is located on the rear I/O panel and has two LED indicators. The
LED on the right indicates connection and activity, while the LED on the left indicates the
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connection. Refer to the tables below for more information.
Activity LED
Link LED
Link LED,
Connection Link Speed Indicator
LED Color Denition
Amber 1 Gb/s
Green 100 Mb/s
󰀨 10 Mb/s
Activity LED
Color State Denition
None No Connection
Yellow Solid On Link
Yellow Flashing Active
UID LED Indicator (LED8)
The rear LED8 is located next to the UID switch. The front UID LED is located on the front
panel. When you press the UID switch, both rear LED8 and front UID LED indicators will
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a system rack with multiple units installed).
UID LED Indicator
Color State Denition
None 󰀨 󰀨
Blue Solid On 
Blue Slow Blinking 
Blue Slow Blinking System Recovery
BMC Heartbeat LED (LED1)
A BMC Heartbeat LED is located at LED1 on the motherboard. When LED1 is blinking, the
BMC is functioning normally. See the table below for more information.
BMC Heartbeat
LED State
Color State Denition
Green Solid On BMC is not ready
Green Blinking BMC Normal
Green Fast Blinking BMC: Initializing