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HDD/FP UID Button
The HDD/UID button connections are
located on pins 13/14 of JF1. Attach a
hard-drive LED cable to display HDD or
SATA activity. This connection can also be
used for the front panel UID (Unit Identi-
fi er) button. (The UID LED on pin 7 of JF1
works in conjunction with the UID button.)
When the user presses and releases the
UID button, the UID LED will be turned on
or off to indicate the location of the unit in
a stack or rackmounted servers.
Power On LED
The Power On LED connector is located
on pins 15 and 16 of JF1. This connection
is used to provide LED indication of power
being supplied to the system. See the table
on the right for pin defi nitions.
Fan Headers
The X8DTG-DF has eight chassis/system
fan headers (Fan1 to Fan8). All these 4-pin
fans headers are backward compatible
with the traditional 3-pin fans. Fan speed
control is available for 4-pin fans but not
supported by 3-pin fans. The fan speeds
are controlled by Thermal Management
via Hardware Monitoring in the Advanced
Setting in the BIOS. (The Default setting
is disabled.) See the table on the right for
pin defi nitions.
Chassis Intrusion
The Chassis Intrusion header is desig-
nated JL1. Attach an appropriate cable
from the chassis to inform you of a chassis
intrusion when the chassis is opened
Chapter 5: Advanced Serverboard Setup
HDD/UID LED
Pin Defi nitions (JF1)
Pin#
13
14
Power LED
Pin Defi nitions (JF1)
Pin#
15
16
Fan Header
Pin Defi nitions
Pin#
1
2
3
4
Chassis Intrusion
Pin Defi nitions
Pin#
1
2
5-15
Defi nition
UID Signal/3.3V
HDD Active
Defi nition
+3.3V Stby
Control
Defi nition
Ground (Black)
+12V (Red)
Tachometer
PWM Control
Defi nition
Intrusion Input
Ground
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