19
Installing the Motherboard
F_USB1~3: Front Panel USB headers
The motherboard has six USB ports installed on the rear edge I/O port array. Addi-
tionally, 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.
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.
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
USBOC-
Pin
Signal Name Function
SPDIFO1: SPDIF out header
This is an optional header that provides an SPDIFO (Sony/Philips Digital Interface)
output to digital multimedia device through optical fiber or coaxial connector.
1
+5V
2
NC
3
SPDIFOUT
4
GND
Pin
Signal Name
CASE1: Chassis Intrusion Detect Header
Short Chassis cover is removed
Open Chassis cover is closed
This detects if the chassis cover has been removed. This function needs a chassis
equipped with instrusion detection switch and needs to be enabled in BIOS.
Pin 1-2 Function
