Biostar A55MD2 Owner's Manual download pdf (Page 16)

Motherboard Manual

F_USB1/F_USB2: Headers for USB 2.0 Ports at Front Panel

This header allows user to connect additional USB cable on the PC front panel,

and also can be connected with a wide range of simultaneously accessible

external Plug and Play peripherals.

Pin Assignment

1 +5V (fused)

2 +5V (fused)

3 USB-

4 USB-

5 USB+

6 USB+

7 Ground

8 Ground

9 NC

10 Key

F_AUDIO1: Front Panel Audio Header

This header allows user to connect the front audio output cable with the PC front

panel. This header supports HD and AC’97 audio front panel connector.

HD Audio AC’97

Pin Assignment Pin Assignment

1 Mic Left in 1 Mic In

2 Ground 2 Ground

3 Mic Right in 3 Mic Power

4 GPIO 4 Audio Power

5 Right line in 5 RT Line Out

6 Jack Sense 6 RT Line Out

7 Front Sense 7 Reserved

8 Key 8 Key

9 Left line in 9 LFT Line Out

10 Jack Sense 10 LFT Line Out

Note1: It is recommended that you connect a high-definition front panel audio module to

this connector to avail of the motherboard's high definition audio capability.

Note2: Please try to disable the "Front Panel Jack Detection" if you want to use an

AC'97 front audio output cable. The function can be found via O.S. Audio Utility.

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Biostar A55MD2 Owner's Manual Page 16