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M S-7100 ATX M ainboard
MSI Reminds You...
Note that the pins of VCC and GND must be connected correctly, or
itmay cause some damage.
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
AUD1
2
10
1
9
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.
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.
2-20
®
Front Panel I/O Connectivity Design Guide.
PIN
SIGNAL
1
AUD_MIC
2
AUD_GND
3
AUD_MIC_BIAS
4
AUD_VCC
5
AUD_FPOUT_R
6
AUD_RET_R
7
HP_ON
8
KEY
9
AUD_FPOUT_L
10
AUD_RET_L
6
5
JIR1
2
1
Pin Definition
DESCRIPTION
Front panel microphone input signal
Ground used by analog audio circuits
Microphone power
Filtered +5V used by analog audio circuits
Right channel audio signal to front panel
Right channel audio signal return from front panel
Reserved for future use to control headphone amplifier
No pin
Left channel audio signal to front panel
Left channel audio signal return from front panel
JIR1 Pin Definition
Pin
Signal
Pin
1
NC
2
3
VCC5
4
5
IRTX
6
10
6
5
9
Signal
NC
GND
IRRX
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