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4.5 LED Indicators
LAN LEDs
Two LAN ports (LAN 1 and LAN 2) 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.
LAN1/2 Activity LED (Right)
Color
Status
Green
Flashing
Dedicated IPMI LAN LEDs
In addition to LAN1 and LAN2, an IPMI LAN is also located on the I/O back panel. The
amber LED on the right of the IPMI LAN port indicates activity, while the green LED on the
left indicates the speed of the connection. See the table below for more information.
IPMI LAN LEDs
LED
Color/State
Green: Solid
Link (left)
Amber: Solid
Activity (right)
Amber: Blinking
BMC Heartbeat LED
BMC_HB_LED is the BMC heartbeat LED. When the LED is blinking green, BMC is functioning
normally. See the table below for the LED status.
HDD LED
The HDD LED connection is located on pins 13 and 14 of JF1. Attach a cable to pin 14 to
show hard drive activity status. Refer to the table below for pin definitions.
LED State
Definition
Active
Definition
100 Mb/s
1Gbps
Active
BMC Heartbeat
LED Indicator
LED Color
Green:
Blinking
HDD LED
Pin Definitions (JF1)
Pins
Definition
13
3.3V Stdby
14
HDD Active
61
Chapter 4: Motherboard Connections
LAN1/2 Link LED (Left)
LED State
LED Color
Definition
Green
10Gbps
Yellow/Amber
1Gbps
LAN 1/LAN 2
IPMI LAN
Link LED
Activity LED
IPMI LAN
(X8ST3-F)
Definition
BMC Normal
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