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USB2: Front panel USB ports
The mainboard has two 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 USB2 to connect the
front-mounted ports to the mainboard.
Pin
Signal Name
1
VREG_FP_USBPWR0
2
VREG_FP_USBPWR0
3
USB_FP_P0-
4
USB_FP_P1-
5
USB_FP_P0+
6
USB_FP_P1+
7
GND
8
GND
9
KEY
10
USB_FP_OC0
Note: Please make sure that the USB cable has the same pin assignment as indi-
cated above. A different pin assignment may cause damage or system
hang-up.
IR1: Serial infrared port
The mainboard supports an Infrared (IR) 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.
Pin
Signal Name
1
Not assigned
2
KEY
3
+5V
4
GND
5
IRTX
6
IRRX
SPDIF1: SPDIF out header
You can purchase an optional 24-bit digital audio extension bracket from a
third-party vendor. You can use the audio RCA jacks to connect to digital audio
devices. If your CD-ROM/DVD drive has digital audio output, you can connect
it to the input pins of the SPDIF connector.
Pin
Signal Name
1
SPDIF Out
2
VCC
3
KEY
4
GND
Function
Front Panel USB Power
Front Panel USB Power
USB Port 0 Negative Signal
USB Port 1 Negative Signal
USB Port 0 Positive Signal
USB Port 1 Positive Signal
Ground
Ground
No pin
Overcurrent signal
(optional)
Function
Not assigned
No pin
IR Power
Ground
IrDA serial output
IrDA serial input
(optional)
22
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