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S
S
UPER
ERVER 6018R-MD/MDR User's Manual
Unit Identifier Switches/UID LED
Indicators
A rear Unit Identifier (UID) switch and a
rear UID LED (LED1) are located next to
the VGA port. The front UID switch and
the 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. Pressing either the front
or rear UID switch, will turn on both front
and rear UID LEDs. Press the UID switch
again to turn off the LED indicators. The
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 serverboard. For more information
on IPMI, please refer to the IPMI user's
guide posted on our website @ http://
www.supermicro.com.
Fan Headers
The X10DRD-L has eight fan headers
(Fan1 ~ Fan8). These are 4-pin fan head-
ers, with pins 1-3 backward compatible
with traditional 3-pin fans. However, fan
speed control is available for 4-pin fans
only by Thermal Management via the
IPMI 2.0 interface. Refer to the table on
the right for pin definitions.
Note: Please use all 3-pin fans or all 4-pin
fans on a serverboard. Do not mix 3-pin
fans and 4-pin fans on the same board.
Pin#
1
2
3
4
UID LED (LED3)
Color/State Status
Blue: On
Pin Definitions
Pin#
1
2
3
4
5-16
UID Switch
Definition
Ground
Ground
Button In
Ground
Status
Unit Identified
Fan Header
Definition
Ground
+12V
Tachometer
PWR Modulation
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