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Super X12SDV-4C/8C/10C-SPT4F User's Manual
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, which is next to the VGA port on the back panel. The UID LED
(LED2) is located next to the UID switch. 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/.
UID Switch
Pin Definitions
Pin#
Definition
1
Ground
2
Ground
3
Button In
4
Button In
2
1
MH2
LED3
VGA
JPG1:VGA
1-2:ENABLE
2-3:DISABLE
Aspeed
2600
LEDT3
JMD1_SRW1
LEDT1
LAN3/4
JMD1:M.2-HC PCIe 4.0 X4/S-SATA 3.0
JMD1
P1_NVME0
JTPM1
JGP1
JL1
MH4
CHASSIS INTRUSION
COM1
Intel
IPMI_LAN
X550
USB 2/3(3.0)
LAN1/2
LEDT4
LEDT2
CPU
JPF1:
1-2:NORMAL
2-3:POWER FORCE ON
FAN2
JPF1
JF1:
PWR
X OH NIC2
HDD PWR
RST
NIC1
ON
FF
LED LED
JBT1
: CMOS Clear
30
UID LED
Pin Definitions
Color
Blue: On
1. UID Switch
2. UID LED
MH1
PJ1
JPV1
LED1
JF1
MH3
https://www.supermicro.
Status
Unit Identified
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