2-6
MS-7021 ATX Mainboard
Front Panel Audio Connector: JAUD1
You can connect an optional audio connec-
tor to the JAUD1 front panel audio connector.
JAUD1 is compliant to Intel
®
Front Panel I/O Con-
nectivity Design Guide.
JAUD1
1
2
10
9
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
JAUD1 Pin Definition
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
Pin
Description
Pin
Description
1
VCC
2
VCC
3
USB0-
4
USB1-
5
USB0+
6
USB1+
7
GND
8
GND
9
Key
10
USBOC
JUSB1/JUSB2 Pin Definition
Front USB Connectors: JUSB1 & JUSB2
The main board provides two USB2.0
pinheaders for users to connect to optional
USB2.0 ports. They are compliant to Intel
®
I/O
Connectivity Design Guide.
1
9
2
10
JUSB1/JUSB2
(USB 2.0/Intel spec)