Chapter 5 62
F_AUDIO: Front Panel Audio header for Azalia
This header allows the user to install auxiliary front-oriented microphone and lineout ports for easier access.
F_USB1~4: 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.
COM2: Onboard serial port header
Connect a serial port extension bracket to this header to add a second serial port to your system.
Pin Signal Name Pin Signal Name
1 PORT 1L 2 AUD_GND
3 PORT 1R 4 PRESENCE#
5 PORT 2R 6 SENSE1_RETURN
7 SENSE_SEND 8 KEY
9 PORT 2L 10 SENSE2_RETURN
Pin Signal Name Function
1 USBPWR me 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 USB_FP_P0+ USB Port 0 Positive Signal
6 USB_FP_P1+ USB Port 1 Positive Signal
7 GND Ground
8 GND Ground
9 Key No pin
10 USB_FP_OC0 NC
Pin Signal Name Function
1 DCD me Data Carrier Detect
2 SIN Serial Input
3 SOUT UART B Serial Output
4 DTR UART B Data Terminal Ready
5 GND Ground
6 DSR Data Set Ready
7 RTS RART B Request to Send
8 CTS Clear to Send
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