Biostar A55ML+ 业主指南
Motherboard Manual
14
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 internal USB devices, like USB card reader.
and also can be connected with internal USB devices, like USB card reader.
Pin
Assignment
1 +5V
(fused)
2 +5V
(fused)
3 USB-
4 USB-
5 USB+
6 USB+
7 Ground
8 Ground
9 NC
4 USB-
5 USB+
6 USB+
7 Ground
8 Ground
9 NC
1 0
2
9
1
F USB
_
2 F USB
_
1
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.
1
9
2
10
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
Note: 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.
this connector to avail of the motherboard's high definition audio capability.