23
Installing the Motherboard
Please make sure that the USB cable has the same pin assignment as
indicated above. A different pin assignment may cause damage or system
hand-up.
F_USB1/F_USB2: Front Panel USB headers
The motherboard has four USB ports installed on the rear edge I/O port array. Additionally,
some computer cases have USB ports at the front of the case. If you have this kind of case,
use auxiliary USB connector to connect the front-mounted ports to the motherboard.
1
USBPWR
Front Panel USB Power
2
USBPWR
Front Panel USB Power
3
USB_FP_P0-
USB Port 0 Negative Signal
4
USB_FP_P1-
USB Port 1 Negative Signal
5
US
USB Port 0 Positive Signal
6
US
USB Port 1 Positive Signal
7
GND
Ground
8
GND
Ground
9
Key
No pin
10
USB_FP_OC0
Overcurrent signal
Pin
Signal Name
Function
CDIN1: Primary CD-in connector
1
CD _L
2
GND
3
GND
4
CD _R
Pin
Signal Name
F_AUDIO2: Front Panel Audio header for Azalia
This header allows the user to install auxiliary front-oriented microphone and line-out ports
for easier access.
If your front panel cable is seperated, please connect it to pin1 and pin3 or
pin5 and pin7 to activate the MIC function.
1
PORT-FL
2
GND
3
PORT-FR
4
ACZ-DET
5
PORT-ER
6
AGND
7
SENSE B
8
Key
9
PORT-EL
10
GND
Pin
Signal Name