23
Installing the Motherboard
IR1: Infrared header (optional)
The motherboard supports an Infrared (IR1) data port. Infrared ports allow the
wireless exchange of information between your computer and similarly equipped
devices such as printers, laptops, Personal Digital Assistants (PDAs), and other
computers.
1 Not Assigned Not assigned
2 Key No pin
3 +5V IR Power
4 GND Ground
5 IR_TX IrDA serial output
6 IR_RX IrDA serial input
Pin Signal Name Function
SPDIFO1: SPDIF out header
This is an optional header that provides an S/PDIF (Sony/Philips Digital Interface)
output to digital multimedia device through optical fiber or coaxial connector.
1 SPDIF SPDIF digital output
2 +5VA 5V analog Power
3 Key No pin
4 GND Ground
Pin Signal Name Function
F_USB1~3: 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.
Please make sure that the USB cable has the same pin assignment as
indicated above. A different pin assignment may cause damage or system
hang-up.
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 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 NC Not connected
Function
Pin Signal Name
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