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Chapter 4: Motherboard Connections
4.5 LED Indicators
LAN LEDs
Four LAN ports (LAN 1 and LAN 2) are located on the I/O back panel of the motherboard.
Each LAN port has two LEDs. The green LED indicates activity, while the other Link LED may
be green, amber, or off to indicate the speed of the connection. Refer to the tables below for
more information.
LAN Activity LED (Right)
LED State
Color
Status
Definition
Amber
Flashing
Active
LAN Link LED (Left)
LED State
LED Color
Definition
Green
100Mbps
Yellow/Amber
1Gbps
M.2 Active LED
LED2, LED3, LED4, and LED5 are the M.2 activity LEDs. The LED activity behavior depends
on the module.
Power LED
LED1 is the Power GOOD LED. Refer to the table below for LED definitions.
Power Good LED Indicator
LED Color
Definition
Green
All power is good
Red
Issue with power output
M.2 Active LED Indicator
LED Color
Definition
Depends on the Module
M.2 Module Active
LAN Activity LED
LED6, LED7, LED8, and LED9 are the GbE LAN activity LEDs. When the LED is blinking
amber, there is activity on the LAN port(s).
GbE LAN Active LED Indicator
LED Color
Definition
Blinking Amber
LAN Active