Led Indicators - Supermicro H12DSU-iNR User Manual

2.9 LED Indicators

LAN Port LEDs
The IPMI Ethernet port has two LED indicators. The Activity LED is yellow and indicates
connection and activity. The Link LED may be green, amber, or off to indicate the speed of
the connection. Refer to the tables below for more information.
Onboard Power LED
PWROK LED is an onboard power LED. When this LED is lit, it means system is in power-on
state, and the onboard power status is ok. Turn off the system and unplug the power cord
before removing or installing components.
BMC Heartbeat LED
A BMC Heartbeat LED is located at BMC_HB LED on the serverboard. When BMC_HB LED
is blinking, BMC functions normally. See the table below for more information.
Unit Identified LED
The Rear UIO LED is located next to the UID switch. The UID indicators provide easy
identification of a system unit that may be in need of service.
LAN1/2 LED
(Connection Speed Indicator)
LED Color Definition
Off 10 Mb/s
Green 100 Mb/s
Amber 1 Gb/s
Activity Indicator
Color Status
Off No Connection
Yellow Flashing
Onboard Power LED Indicator
LED Color Definition
Off System Off (power cable not connected)
Green System On, Power OK
BMC Heartbeat LED States
Color State
Green Solid On
Green Blinking
Green Fast Blinking
UID LED Status
LED State Status
Solid On Local Unit Identified
Blinking Remote Unit Identified
Definition
Active
Definition
BMC is not ready.
BMC Normal
BMC: Initializing
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Chapter 2: Installation