ECS P17G/1333 Series User Manual page 20

Here is a list of headers F_USB1/F_USB2 pin assignments.
Pin
1
3
5
7
9
1 Locate the F_USB1/F_USB2 headers on the motherboard.
2 Plug the bracket cable onto the F_USB1/F_USB2 headers.
3 Remove a slot cover from one of the expansion slots on the system
chassis. Install an extension bracket in the opening. Secure the
extension bracket to the chassis with a screw.
SPDIFO1: 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 coxial connector.
Chapter 2: Motherboard Installation
Signal
USBPWR
USB_FP_P0(-)
USB_FP_P0(+)
GND
KEY
Pin
1
2
3
4
Pin Signal
2 USBPWR
4 USB_FP_P1(-)
6 USB_FP_P1(+)
8 GND
10 USB_FP_OC0
Signal
SPDIFOUT
+5V
Key
GND
17