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X9QR7-TF+/X9QRi-F+ Motherboard User’s Manual
Unit Identifier Switch
A Unit Identifier Switch (SWUID) and two
LED Indicators are located on the mother-
board. The UID Switch is located next to the
LAN ports on the backplane. The Rear UID
LED (LEDUID1) is located next to the UID
Switch. The Front Panel UID LED is located
at Pins 7/8 of the Front Control Panel at JF1.
Connect a cable to Pin 8 on JF1 for Front
Panel UID LED indication. When you press
the UID switch, both Rear UID LED and Front
Panel UID LED Indicators will be turned on.
Press the UID switch again to turn off both
LED Indicators. These UID Indicators provide
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.supermi-
cro.com.
UID Switch
Pin# Definition
1
Ground
2
Ground
3
Button In
4
Ground
1. UID Switch
2. Rear UID LED (LEDUID1)
3. Front UID LED
UID LED
Status
Color/State OS Status
Blue: On
Windows OS
Unit Identified
Blue:
Blinking
Linux OS
Unit Identified
Power Button
Blue+ (OH/Fan Fail/
PWR FaiL/UID LED)
1
NIC1 Link LED
Reset Button
2
Power Fail LED
HDD LED
FP PWRLED
Reset
PWR
3.3 V
ID_UID_SW/3/3V Stby
Red+ (Blue LED Cathode)
Ground
Ground
19
20
3.3V
X
Ground
NMI
X
NIC2 Link LED
NIC2 Activity LED
NIC1 Activity LED
X9QR7-TF+/X9QRi-F+
Rev. 1.02
1
3
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