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Chapter 4: Motherboard Connections
4.5 LED Indicators
LAN LEDs
Four LAN ports (LAN 1 ~ LAN 4) are located on the I/O back panel of the motherboard. Each
Ethernet 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
Green
Flashing
Active
LAN Link LED (Left)
LED State
LED Color
Definition
Green
10Gbps
Yellow/Amber
1Gbps
IPMI LAN LEDs
In addition to LAN1 ~ LAN4, an IPMI LAN is also located on the I/O back panel. The amber
LED on the right indicates activity, while the green LED on the left indicates the speed of the
connection. Refer to the table below for more information.
IPMI LAN
Activity LED
Link LED
LAN 1/LAN 2
IPMI LAN
(X8ST3-F)
IPMI LAN LEDs
LED
Color/State
Definition
Link (left)
Green: Solid
Amber: Solid
100 Mbps
1Gbps
Activity (Right)
Amber: Blinking
Active
BMC Heartbeat LED
A BMC Heartbeat LED is located at LEDBMC on the motherboard. When LEDBMC is blinking,
the BMC is functioning normally. Refer to the table below for more information.
BMC Heartbeat LED Indicator
LED Color
Definition
Green:
Blinking
BMC Normal