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Chapter 2 Installation Instructions
Speaker Connector
The speaker connector is used to connect
speaker of the chassis
1
SPK(Pull high)
SPKJ
EMPTY
NC
SPEAKER
SPDIF Out Connector: SPDIF_OUT
The SPDIF out connector is capable of provid-
ing digital audio to external speakers or com-
pressed AC3 data to an external Dolby digital
decoder.
Note:
The empty pin of SPDIF cable should be
aligned to empty pin of SPDIF out connector.
SPDIF_OUT
5V
SPDIF-OUT
GND
EMPTY
Chassis Intruder Connector: INTRUDER
The connector connects to the chassis security
switch on the case. The system can detect the
chassis intrusion through the status of this
connector. If the connector has been closed
once, the system will send a message. To uti-
lize this function, set “Intruder Detection” to “En-
abled” in the “Power Management Setup” sec-
tion of the CMOS Setup. Save and exit, then boot
the operating system once to make sure this
function takes effect.
INTRUDER
1
2
INTRUDERJ
GND
Front Audio Connector: F_AUDIO
The audio port includes two parts – the Front
Audio and Rear Audio. Their priority is se-
quenced from high to low (Front Audio to Rear
Audio). If headphones are plugged into the front
panel of the chassis (using the Front Audio),
then the Line Out (Rear Audio) on the rear panel
will not work. If you do not want to use the Front
Audio, pin 5 and 6, pin 9 and 10 must be short,
and then the signal will be sent to the rear au-
dio port.
F_AUDIO
MIC_GND
MIC_IN
+5VA
MIC_PWR
AUD_RET_R
AUD_OUT_R
EMPTY
AUD_OUT_L
AUD_RET_L
1 2
9 10
NC
1
