SPDIF1: SPDIF out header
(optional)
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
Function
1
SPDIF
SPDIF digital output
2 +5V
5V
power
3 NC
Not
connected
4 GND
Ground
C
C
o
o
n
n
n
n
e
e
c
c
t
t
i
i
n
n
g
g
I
I
/
/
O
O
D
D
e
e
v
v
i
i
c
c
e
e
s
s
The backplane of the mainboard has the following I/O ports:
PS/2 Mouse
Use the upper PS/2 port to connect a PS/2 pointing device.
PS/2 Keyboard
Use the lower PS/2 port to connect a PS/2 keyboard.
LPT1
Use LPT1 to connect printers or other parallel
communications devices.
COM1
Use the COM ports to connect serial devices such as mice or
fax/modems. COM1 is identified by the system as COM1/3.
Audio Ports
Use the three audio ports to connect audio devices. The first
jack is for stereo line-in signal. The second jack is for stereo
line-out signal. The third jack is for microphone.
Note:
The line-in port can be set as another line-out
port when the 4-channel function is enabled.
LAN Port (optional)
Connect an RJ-45 jack to the LAN port to connect your
computer to the Network.
USB Ports
Use the USB ports to connect USB devices.
Note:
One of the USB ports is shared with the
USBCR1 connector.
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