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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 rear UID switch is located next to LAN3/
LAN4 on the I/O backpanel. The front UID
switch is located on Pin 13 on the Front
Panel Control (JF1). The rear UID LED (LE1)
is located next to the UID switch and the
front UID LED is located on Pins 7 on JF1.
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 @http://www.super-
micro.com.
2
1
LE1
UID
BMC
LAN
LEDM1
CTRL
BIOS
LICENSE
LE6
Battery
SP1
BT1
JSD2
PCH
JSD1
JBT1
JWD1
JD1
JF1
JL1
JLAN2
JLAN1
USB0/1
VGA
IPMI_LAN
LAN3/4
LAN1/2
X10DRL-LN4
Rev. 1.00
CPU2
OPEN 1st
CLOSE 1st
CPU1
CLOSE 1st
OPEN 1st
JPWR1
2-21
Chapter 2: Installation
UID Switch
Pin#
Definition
1
Ground
2
Ground
3
Button In
4
Button In
UID LED
Status
Color/State Status
Blue: On
Unit Identified
20
19
Ground
NMI
X
FP PWRLED
HDD LED
NIC1 Link LED
NIC1 Activity LED
NIC2 Activity LED
NIC2 Link LED
OH/Fan Fail/
PWR Fail LED)
Power Fail LED
Reset
Ground
Ground
PWR
2
1
1. UID Switch
2. Rear UID LED
3. Front UID LED
4. Front UID Switch
X
3.3 V
4
UID Switch
3
UID LED
3.3V
Reset Button
Power Button
1
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