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Chapter 4: Motherboard Connections
4.5 LED Indicators
IPMI LAN LEDs
The dedicated IPMI LAN has two LED indicators. The amber LED on the right of the IPMI
LAN port indicates activity, while the LED on the left indicates the speed of the connection.
See the table below for more information.
IPMI LAN LEDs
LED
Color/State
Definition
Link (left)
Green: Solid
Amber: Solid
100 Mbps
1 Gbps
Activity (Right)
Amber: Blinking
Active
IPMI LAN Port
Link LED
Activity LED
SFP28 Port Link/Activity LED Indicators (LED_L0/LED_L1)
Two LAN Link/Activity LED indicators are located at LED_L0 and LED_L1. LED_L0 indicates
the SFP28 port 0 connection. LED_L1 indicates the SFP28 port 1 connection. Refer to the
tables below for more information.
SFP28 Port Activity LED Indicator
Assignment/State
LED
LAN Port Assigned
LED_L0
SFP28 Port 0 Active
LED_L1
SFP28 Port 1 Active
Blinking Green
SFP28 LAN Port Active
SFP28 Port Link LED Indicator
LED State
LED Color
Definition
Solid Yellow
10 Gbps/ 1 Gbps
Solid Green
25 Gbps
BMC Heartbeat LED
LEDM1 is the BMC heartbeat LED. When the LED is blinking green, BMC is functioning
normally. Refer to the table below for the LED status.
BMC Heartbeat LED Indicator
LED Color
Definition
Green: Blinking BMC Normal