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Power Switch, Power LED
Press the button at SW1 to power on the motherboard. This button can also power off the
motherboard instantly or when held for four seconds. The settings for this button can be
configured with the Power Button Function feature in the UEFI BIOS.
Unit Identifier Switch/UID LED Indicator
A Unit Identifier (UID) switch and an LED Indicator are located on the motherboard. The UID
switch is located at JUIDB1 on the rear panel I/O. The UID LED is located near the UID
switch at LED2. When you press the UID switch, the UID LED will be turned on. Press the
UID switch again to turn off the LED indicator. The UID Indicator provides easy identification
of a system unit that may be in need of service.
Note: UID can also be triggered via IPMI on the motherboard. For more information on
IPMI, refer to the IPMI User's Guide posted on our website at
com/support/manuals/.
2
1
3
USB2
SW1
(3.2 Gen2)
MH8
MAC CODE
JVRM1
JPO1
JWD1
JBM1
CPLD
MH4
JPT1
BT1
M.2-C PCIe 5.0 x2
SGPIO1
MH6
JKVM1
MH1
MH2
MH3
SRW2
JTPM1
SRW1
LEDM1
BMC
JMD1
H13SRD-F
REV:1.00
MH5
DESIGNED IN USA
JBT1
APU
BIOS
LICENSE
JSS1
MH7
SAS1
SAS2
JPWR1
MH9
J12
PRESS FIT
35
Chapter 2: Installation
https://www.supermicro.
UID Switch
Pin Definitions
Pin#
Definition
1
Ground
2
Ground
3
Button In
4
Button In
1. Power Switch, Power LED
2. UID Switch
3. UID LED (LED2)
UID LED
Pin Definitions
Color
Status
Blue: On
Unit Identified
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