User`s manual
Chapter 3: Installation
3-15
X8QBE-F
Rev. 1.11
Unit Identifi er Switch
A Unit Identifi er (UID) Switch and two LED
Indicators are located on the motherboard.
The UID Switch is located next to the LAN
ports on the backplane. The Rear UID LED
(LED26) 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. Con-
nect 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 identifi cation 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# Defi nition
1 Ground
2 Ground
3 Button In
4 Ground
1. UID Switch
2. Rear UID LED (LED26)
3. Front UID LED
2
1
3
UID LED (LE2)
Status
Color/State OS Status
Blue: On Windows OS Unit Identifi ed
Blue:
Blinking
Linux OS Unit Identifi ed
1
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
1920
3.3V
X
Ground
NMI
X
NIC2 Link LED
NIC2 Activity LED
NIC1 Activity LED