Chapter 5: Advanced Serverboard Setup
5-27
Unit Identifi er Switch
A Unit Identifier (UID) switch and
two LED indicators are provided on
the serverboard. The UID Switch is
located next to the LAN ports on the
I/O backplane. The rear UID LED is
located next to the UID switch. The
Front Panel UID LED is located on
pins 7/8 of JF1 (Control Panel header).
Connect a cable to pin 8 on JF1 for
the Front Panel UID LED. When you
press the UID switch, both the rear
and the Front Panel UID indicators
will be turned on. Press the UID switch
again to turn off both LED Indicators.
These UID Indicators provide easy
identi
fi
cation of a system unit that may
be in need of service.
Note:
UID can also be triggered via
IPMI. For more information on IPMI,
please refer to the IPMI User's Guide
posted on our Website @ http://www.
supermicro.com.
UID Switch
Pin# De
fi
nition
1
Ground
2
Ground
3
Button In
4
Ground
UID LED (LE2)
Status
Color/State OS Status
Blue: On
Windows OS
Unit Identi
fi
ed
Blue:
Blinking
Linux OS
Unit Identi
fi
ed