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Chapter 2: Installation
2.8 LED Indicators
LAN Port LEDs
The motherboard's Ethernet port has two LED indicators. The Activity LED is yellow and
indicates connection and activity. The Link LED may be green, amber, or off to indicate the
speed of the connection. Refer to the tables below for more information.
Link LED
Connection Link Speed Indicator
LED Color
Definition
Amber
1 Gb/s
Green
100 Mb/s
Off
10 Mb/s
Activity LED
Color
State
Definition
None
No Connection
Yellow
Solid On
Link
Yellow
Flashing
Active
Activity LED
Link LED
UID LED Indicator
A UID LED1 indicator is located on the front I/O panel. The UID LED provides easy identification
of a system unit that may be in need of service.
Note:
UID can be triggered via IPMI. For more information on IPMI, please refer to the IPMI
User's Guide posted on our website at
https://www.supermicro.com/support/manuals/
UID LED
LED Color
Status
Blue: On
Unit Identified
BMC Heartbeat LED
LEDM1 is used as the BMC heartbeat LED. When the LED is blinking green, BMC is normal.
See the table below for the LED status.
BMC Heartbeat LED Indicator
LED Color
Definition
Green:
Blinking
BMC Normal