Rear I/O Connectors/Ports - Supermicro X13DEG-QT User Manual

Super X13DEG-QT User's Manual

2.6 Rear I/O Connectors/Ports

UID (Unit Idenfication)/BMC Reset Switch and UID/BMC Reset LED Indicators
A UID LED/BMC Reset switch (UID-SW) is located on the rear side of the motherboard. This
switch has dual functions. It can be used to identify a system unit that is in need of service,
and it can also be used to reset the BMC settings.
When functioning as a BMC reset switch, UID-SW will trigger a cold reboot when the user
presses and holds the switch for six seconds. It will also restore the BMC to the manufacturer's
default when the user presses and holds the switch for 12 seconds.
When functioning as a UID LED switch, UID-SW will turn both rear UID LED (UID-LED) and
front UID LED (Pin 7/Pin 8 of JF1) on and off when the user presses the switch on/off.
To achieve these dual purposes, the UID LED/BMC Reset switch works in conjunction with
the BMC Heartbeat LED (LEDBMC) and front/rear UID LEDs. Please note that UID can
also be triggered via BMC on the motherboard. For more details on the UID LEDs and BMC
LEDs, refer to the tables below. Also, refer to the BMC User's Guide posted on our website
at https://www.supermicro.com
When Used as a UID LED Switch
Work w/ Rear UID LED (UID-LED) & Front UID LED (JF1: Pin 7
& Pin 8)
Rear UID LED UID-LED
Front UID LED Pin 7/Pin 8 (JF1)
Press the switch (UID-SW) to turn on and off both rear
and front UID LED indicators;
* Refer to the next page for the locations of UID-SW, UID-LED, Pin7/Pin8 of JF1, and
LEDBMC.
for more information on BMC.
UID/BMC Reset Switch (UID-SW)
Features & Settings
When Used as a BMC Reset Switch
Work with BMC Heartbeat LED (LEDBMC)
Blue: Unit identified BMC Heartbeat LED
Blue: Unit identified BMC Reset: Press &
hold the switch (UID-
SW) for six seconds
BMC Reset: Press &
hold the switch (UID-
SW) for 12 seconds
UID/BMC Reset Switch (UID-SW)
Pin Definitions
Pin# Definition
1 Ground
2 Ground
3 Button In
4 Button In
62
LEDBMC Blinking green: BMC Normal
LEDBMC: Solid green: during reboot
Triggering a cold reboot; LED: Solid
green on during cold reboot
LEDBMC: Solid green: during BMC reset
BMC: Reset to the manufacturer's
default; LED solid on during BMC Reset