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Chapter 5
73
F_usb1/f_usb2: 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.
NOTE:
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.
AUXIN: Auxiliary-in Connector
This connector can be used as either CDIN1 or AUXIN connector. If it is used as an additional line-in audio
(AUXIN) connector, it allows you to attach a line-in cable when your rear line-in jack is set as line out port for 4-
channel function.
CDIN1: Primary CD-in Connector
Pin
Signal Name
1
USB DUAL VCC
2
USB DUAL VCC
3
USBP4-
4
USBP5-
5
USBP4+
6
USBP5+
7
Ground
8
Ground
9
Key
10
USBOC45#
Pin
Signal Name
Function
1
AUXIN_L
AUX In left channel
2
AGND
Ground
3
AGND
Ground
4
AUXIN_R
AUX In right channel
Pin
Signal Name
1
CD-IN-Left
2
GND
3
GND
4
CD-IN-Right
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