Supermicro H12SSG-AN6 User Manual page 40

H12SSG-AN6 User's Manual
UID LED Indicator (LED1)
The rear LED1 is located next to the UID switch. The front UID LED is located on the front
panel. When you press the UID switch, both rear LED1 and front UID LED indicators will
turn on. Press the UID switch again to turn off the LED indicators. Use this UID Indicator to
'mark' the system, so the system can be easily identified whether on the front or back (e.g.,
a system rack with multiple units installed).
BMC Hearbeat LED (LEDM1)
A BMC Heartbeat LED is located at LEDM1 on the motherboard. When this LED is blinking,
the BMC is functioning normally. See the table below for more information.
Power LED
The Power LED is designated as LED2 on the motherboard. When this LED is lit, it means
that power is present on the motherboard. In suspend mode, this LED will blink on and off.
Be sure to turn off the system and unplug the power cord(s) before removing or installing
components.
M.2 Active LEDs (LED4 and LED5)
The M.2 Interface Detection LEDs indicate that an M.2 interface is detected, active and
working correctly on either M.2-B1 (LE1) or M.2-A1 (LE2).
Note: M.2 SATA devices are not supported, but these LEDs turns on (green light) when they
are installed.
LED Color
Off
Green
UID LED
LED Indicator
Color State
Blue Solid On
None Off
BMC Heartbeat
LED State
Color State
Green Solid On
Green Blinking
Green Fast Blinking
Onboard Power LED Indicator
LED Color Definition
Off System Off (power cable not connected)
Green System On
M.2 Active
LED Indicator
Definition
Off (Normal)
On (Device active or a M.2 SATA device detected)
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Definition
Unit Identified
UID Off
Definition
BMC is not ready
BMC Normal
BMC: Initializing