Elitegroup Computer Systems K7AMA3 Manual page 27

USB3: Front panel USB connectors
The mainboard 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 connectors USB3 to connect the
front-mounted ports to the mainboard.
Pin Signal Name
1 USBVCC3
2 USBVCC3
3 USBP4-
4 USBP5-
5 USBP4+
6 USBP5+
7 GND
8 GND
9 Key
10 NC
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: Infrared port
The infrared port allows 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
AUXIN1: Extra line-in connector
This connector is an additional line-in audio 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.
Pin Signal Name
1 AUX_L
2 GND
3 GND
4 AUX_R
Function
+5V dual
+5V dual
Data signal port 4 -
Data signal port 5 -
Data signal port 4 +
Data signal port 5 +
Ground
Ground
Cut away
No connection
Function
Not assigned
No pin
IR Power
Ground
IrDA serial output
IrDA serial input
Function
AUX In left channel
Ground
Ground
AUX In right channel
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