Biostar H55A Setup Manual page 16

Motherboard Manual
F_USB1/F_USB2/F_USB3: Headers for USB 2.0 Ports at Front Panel
This motherboard provides 3 USB 2.0 headers, which 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.
JUSBV1/JUSBV2: Power Source Headers for USB Ports
Pin 1-2 Close:
JUSBV1: +5V for USB ports at USBKB1/RJ45USB1.
JUSBV2: +5V for USB ports at F_USB1/F_USB2/F_USB3.
Pin 2-3 Close:
JUSBV1: +5V STB for USB ports at USBKB1/RJ45USB1.
JUSBV2: +5V STB for USB ports at F_USB1/F_USB2/F_USB3.
14
F_USB3 F_USB1
F_ USB2
2 1 0
1 9
JUS BV 1
3
1
1 3
J US B V2
Pin Assignment
1 +5V (fused)
2 +5V (fused)
3 USB-
4 USB-
5 USB+
6 USB+
7 Ground
8 Ground
9 Key
10 NC
1 3
Pin 1-2 close
1 3
Pin 2-3 close