Connecting Optional Devices - ECS NFORCE4M-A Manual

20

Connecting Optional Devices

Refer to the following for information on connecting the motherboard's optional devices:
AUDIO1: Front Panel Audio header
This header allows the user to install auxiliary front-oriented microphone and line-out ports
for easier access.
Pin
1
AUD_MIC
2
AUD_GND
3
AUD_MIC_BIAS Microphone Power
4
AUD_VCC
5
AUD_F_R
6
AUD_RET_R
7
REVD
8
Key
9
AUD_F_L
10
AUD_RET_L
CDIN1: Analog Audio Input header
Pin
1
CD in_L
2
GND
3
GND
4
CD in_R
Pin Signal Name
Signal Name
Front Panel Microphone input signal
Ground used by Analog Audio Circuits
Filtered +5V used by Analog Audio Circuits
Right Channel audio signal to Front Panel
Right Channel Audio signal to Return from Front Panel
Reserved
No Pin
Left Channel Audio signal to Front Panel
Left Channel Audio signal to Return from Front Panel
Signal Name Function
CD In left channel
Ground
Ground
CD In right channel
Installing the Motherboard
Function