Supermicro SUPERSERVER 8048B-TR3 User Manual page 79

Unit Identifi er Switch
A rear Unit Identifier (UID) switch
(JUIDB1) and a rear LED (LE1) are
located close to LAN ports 1/2 on
the rear side of the motherboard. The
front UID switch is located at pin 13 of
the Front Control Panel (JF1), while
the front UID LED is located on pin 7
of JF1. When you press the front UID
switch or the rear one, both front and
rear UID LEDs will be turned on. Press
the UID button again to turn off the LED
indicator. The 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.supermicro.com.
Internal Speaker
The Internal Speaker (SP1) can be
used to provide audible indications for
various beep codes. See the table on
the right for pin defi nitions. Refer to
the layout below for the location of the
internal buzzer.
Video Connection
A Video (VGA) port is located next
to USB Port 2 on the I/O back panel.
Refer to the motherboard layout below
for the location.
Chapter 5: Advanced Serverboard Setup
Pin#
1
2
3
4
UID LED (LE2)
Color/State OS
Blue: On Windows OS
Blue: Linux OS
Blinking
Internal Buzzer
Pin Defi nition
Pin# Defi nitions
Pin 1 Pos. (+)
Pin 2 Neg. (-)
5-23
UID Switch
Defi nition
Ground
Ground
Button In
Ground
Status
Status
Unit Identifi ed
Unit Identifi ed
Beep In
Alarm Speaker