Supermicro X12STD-F User Manual page 33

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 back panel. The UID LED (LED1) is next to the UID switch.
When you press the UID button, the UID LED will be turned on. Press the 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, please refer to the IPMI User's Guide posted on our website at
supermicro.com/support/manuals/.
UID LED
Pin Definitions
Color Status
Blue: On Unit Identified
1
USB2 (3.0)
MH1
SW1
JMD2 JMD1
JMD2: M.2-H JMD1: M.2-H
PCIe 3.0 X4 / I-SATA 3.0 PCIe 3.0 X4 / I-SATA 3.0
MH8
LEDM1
JPME2
SRW3 SRW1
JWD1
J3
J2
JBM1
SRW4 SRW2
SRW5
BT1
JBT1
S-SGPIO1
DESIGNED IN USA
CPU
MH7 MH4
2
JKVM1
USB0/1
MH2
MH3
JTPM1
JPCIE1
BIOS LICENSE
BAR CODE
MAC CODE
X12STD-F
REV: 1.02
MH6
MH9
JPWR1
33
Chapter 2: Installation
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UID Switch
Pin Definitions
Pin# Definition
1 Ground
2 Ground
3 Button In
4 Button In
1. UID Switch
2. UID LED