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Chapter 4: Motherboard Connections
4.5 LED Indicators
Dedicated IPMI LAN LEDs
A dedicated IPMI LAN is located on the I/O Backplane of the motherboard. The amber LED
on the right indicates activity, while the green LED on the left indicates the speed of the
connection. See the tables at right for more information.
IPMI LAN Link LED (Left) &
Activity LED (Right)
Color
State
Definition
Link (Left)
Green: Solid
100 Mbps
Activity (Right)
Amber: Blinking
Active
IPMI LAN
Link LED
Activity LED
BMC Heartbeat LED
LEDM1 is the BMC heartbeat LED. When the LED is blinking green, BMC is functioning
normally. See the table below for the LED status.
BMC Heartbeat LED Indicator
LED Color
Definition
Green: Blinking
BMC Normal
Onboard Power LED
The Onboard Power LED is located at LE2 on the motherboard. When this LED is on, the
system is also 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.
Onboard Power LED Indicator
LED Color
Definition
Off
System Off (power
cable not connected)
Green
System On