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Chapter 3: Motherboard Connections
3.5 LED Indicators
LAN Port LEDs
There are two LAN ports (LAN1 and LAN2) on the I/O back panel of the motherboard. Each
Ethernet LAN port has two LEDs. The yellow LED indicates activity, while the other Link LED
may be green, amber, or off to indicate the speed of the connection.
LAN1/2 LED
(Connection Speed Indicator)
LED Color
Definition
Off
100 Mb/s or below
Green
2.5 Gb/s
Amber
1 Gb/s
Onboard Power LED
LED1 is the onboard Power LED. When this LED is on, the system is on. Be sure to turn off
the system and unplug the power cord before removing or installing components. Refer to
the table below for more information.
Power LED Indicator
LED1
Definition
Green
System On
Red
S5 or main power fail
Off
System Off (power cable not connected)