2-20
M S-7100 ATX M ainboard
MSI Reminds You...
If you don
’
t want to connect to the front audio header,
pins 5 & 6, 9 & 10 have to be jumpered in order to have
signal output directed to the rear audio ports. Otherwise,
the Line-Out connector on the back panel will not
function.
5
6
10
9
Front Panel Audio Connector: AUD1
The AUD1 front panel audio connector allows you to connect to the front panel
audio and is compliant with Intel
®
Front Panel I/O Connectivity Design Guide.
AUD1
1
2
9
10
PIN
SIGNAL
DESCRIPTION
1
AUD_MIC
Front panel microphone input signal
2
AUD_GND
Ground used by analog audio circuits
3
AUD_MIC_BIAS
Microphone power
4
AUD_VCC
Fi5V used by analog audio circuits
5
AUD_FPOUT_R
Right channel audio signal to front panel
6
AUD_RET_R
Right channel audio signal return from front panel
7
HP_ON
Reserved for future use to control headphone amplifier
8
KEY
No pin
9
AUD_FPOUT_L
Left channel audio signal to front panel
10
AUD_RET_L
Left channel audio signal return from front panel
Pin Definition
IrDA Infrared Module Header: JIR1
The connector allows you to connect to IrDA Infrared module. You must config-
ure the setting through the BIOS setup to use the IR function. JIR1 is compliant with
Intel
®
Front Panel I/O Connectivity Design Guide.
JIR1
JIR1 Pin Definition
6
5
2
1
Pin
Signal
Pin
Signal
1
NC
2
NC
3
VCC5
4
GND
5
IRTX
6
IRRX
MSI Reminds You...
Note that the pins of VCC and GND must be connected correctly, or
itmay cause some damage.