ECS 848P-A7, Manual, Page: 29 / 86

23
Installing the Motherboard
Please make sure that the USB cable has the same pin assignment as
indicatged above. A different pin assignment may cause damage or system
hang-up.
F_USB3/4: Front Panel USB header
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.
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
US USB Port 0 Positive Signal
6
US USB Port 1 Positive Signal
7
GND Ground
8
GND Ground
9
Key No pin
10
USB_FP_OC0 Overcurrent signal
Pin Signal Name Function
IR: Serial infrared header
The motherboard supports an Infrared (IR) data header. Infrared header allow the wireless
exchange of information between your computer and similarly equipped devices such as
printers, laptops, Personal Assistants (PDAs), and other computers.
1
Not assigned Not assigned
2
Key No pin
3
+5V IR Power
4
GND Ground
5
IRTX IrDA serial output
6
IRRX IrDA serial input
Pin Signal Name Function
AUXIN1: Auxliary In header
Pin Signal Name Function
1
AUX_L
AUX In left channel
2
GND
Ground
3
GND
Ground
4
AUX_R
AUX In right channel