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Chapter 4: Motherboard Connections
Onboard Power LED
PWROK is an Onboard Power LED. When this LED is illuminated, it means power is present
on the motherboard. In suspend mode this LED will blink on and off.
BMC Heartbeat LED
A BMC Heartbeat LED (BMC_HB LED) blinks to indicate BMC is functioning normally.
BMC Heartbeat LED States
Color
State
Definition
Green
Solid On
BMC is not ready.
Green
Blinking
BMC Normal
Green
Fast Blinking
BMC: Initializing
4.5 LED Indicators
LAN LEDs
The LAN ports are located on the I/O back panel on the motherboard. The AS -2124US-TNRP
features two RJ45 ports and two SFP+ ports.
Each
RJ45
port has two LEDs. The Activity LED indicates blinks yellow to show activity. Link
LED may be green, amber or off indicating the speed of the connection.
Each
SFP+
port has one LED indicator, described below.
RJ45 LAN Link Indicator
LED States
LED Color Definition
Off
No connection or 100 Mbps
Green
10 Gbps
Amber
Less than 10 Gbps
IPMI LAN LED
The yellow LED indicates activity, while the Link LED indicates the speed of the connection.
IPMI LAN LED
Link LED (left)
LED Color
Definition
Off
10 Mb/s
Green
100 Mb/s
Amber
1 Gb/s
IPMI LAN
Link LED
Activity LED
SFP+ LAN Indicator
LED States
LED Color Definition
Off
No connection or 100 Mbps
Green
10 Gbps, blinks on activity
Amber
Less than 10 Gbps, blinks on activity
LED
SFP+
Link LED
Activity LED
RJ45