17
Installing the Motherboard
SPDIFO: 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
CD_IN: Analog Audio Input connector
Pin Signal Name Function
1 CD_L CD In left channel
2 GND Ground
3 GND Ground
4 CD_R CD In right channel
CASE: Chassis Intrusion Detect Header
Short Case Open
Open Case Close
Pin 1-2 Function
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