ECS 945GCT-M3, Manual, Page: 23 / 60

Installing the Motherboard
17
F_AUDIO: Front Panel Audio header for Azalia
This header allows the user to install auxiliary front-oriented microphone and 6/8-
channel (optional) line-out ports for easier access.
Pin Signal Name
Pin Signal Name Function
1
PORT 1L
2
GND
3
PORT 1R
4
PRESENCE#
5
PORT 2R
6
Sense1_return
7
SENSE_SEND
8
KEY
9
PORT 2L
10
Sense2_return
Pin Signal Name
Pin Signal Name
Pin Signal Name Function
1
AUD_MIC Front Panel Microphone input signal
2
AUD_GND Ground used by Analog Audio Circuits
3
MIC_BIAS Microphone Power
4
AUD_VCC Fi5V used by Analog Audio Circuits
5
AUD_F_R Right Channel audio signal to Front Panel
6
AUD_RET_R Right Channel Audio signal to Return from Front Panel
7
REVD Reserved
8
Key No Pin
9
AUD_F_L Left Channel Audio signal to Front Panel
10
AUD_RET_L Left Channel Audio signal to Return from Front Panel
1394A2: IEEE 1394A header (optional)
Connect this header to any device with IEEE 1394a interface.
AUX_IN: Auxiliary In header (optional)
Pin Signal Name Function
1
TPA1P
2
TPA1M
3
GND
4
GND
5
TPB1P
6
TPB1M
7
CPWR2
8
CPWR2
9
Key
10
GND
Pin Signal Name Pin Signal Name
2
GND
Ground
1
AUX_L
AUX In left channel
3
GND
Ground
4
AUX_R
AUX In right channel
Pin Signal Name Function