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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 UID, 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, please refer to the IPMI User's Guide posted on our website at http://www.
supermicro.com.
UID Switch
Pin Definitions
Pin#
Definition
1
Ground
2
Ground
3
Button In
4
Button In
1
2
LED2
A
1
C
UID
VGA
COM1
1
1
SRW4
BMC
AST2400
LEDM1
A
C
SRW3
JPME2
1
JBT1
USB2/3
USB4/5
FANA
1
JMD1
1
PCI-E 3.0 X4 / I-SATA
BT1
JMP1
SRW1
JL1
I-SATA3
JSD1
I-SATA1
1
PRESS FIT
LAN2
LAN4
OSC1
Intel
C
C
LAN5
i350-AM4
A
LAN6
A
C
C
A
A
LAN7
LAN8
JI2C1:
1-2:ENABLE
2-3:DISABLE
JI2C2:
JPG1:
VGA
1-2:ENABLE
2-3:DISABLE
1-2:ENABLE
2-3:DISABLE
JPME2:
1-2:NORMAL
2-3:ME
MANUFACTURING MODE
Intel Atom SoC
FCBGA1310
CPU
JF1
PWR
HDD
NIC
NIC
UID
PS
PWR
RST
LED
LED
1
2
LED
FAIL
ON
DESIGNED IN USA
A2SDi-LN4F
JTGLED1
JLANLED1
JGP1
REV:1.02
FAN3
JTGLED2
1
1
1
FAN2
FAN1
1
JPI2C1
JRT3
I-SATA0
1
SUPERDOM
1
1
45
Chapter 2: Installation
UID LED
Pin Definitions
Color
Status
Blue: On
Unit Identified
1. UID Switch
2. UID LED
1
USB0/1 (3.0)
LAN1
IPMI LAN
LAN3
JPV1
JPW1
JPH1
JPH1
1
LED1
JF1
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