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SUPERSERVER 6018TR-T/TF User's Manual
Unit Identifi er Switches/UID LED
Indicators
A rear Unit Identifi er (UID) switch and
rear UID LED (LE1) are located next
to the InfiniBand connector on the
motherboard. The front UID switch and
UID LED are both located on the front
panel control (JF1) with the front UID
switch on pin 13 of JF1, and the front
LED on pin 7. When you press either the
front or rear UID switch, both front and
rear UID LEDs will be turned on. Press
the UID switch again to turn off the LED
indicators. 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.
Fan Headers
This motherboard has three system/CPU
fan headers (Fan 1, Fan 3, and Fan 4)
on the motherboard. All these 4-pin fans
headers are backward-compatible with
the traditional 3-pin fans. However, fan
speed control is available for 4-pin fans
only by Thermal Management via the
IPMI 2.0 interface. See the table on the
right for pin defi nitions.
Pin# Defi nition
1
2
3
4
Color/State
Blue: On
Pin Defi nitions
Pin#
1
2
3
4
5-20
UID Switch
Ground
Ground
Button In
Ground
UID LED
Status
Status
Unit Identifi ed
Fan Header
Defi nition
Ground
+12V
Tachometer
PWR Modulation
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