33
8 KEY
No
Pin
9
AUD_FPOUT_L
Left Channel Audio signal to Front Panel
10
AUD_RET_L
Left Channel Audio signal Return from
Front Panel
USB3 & USB4: Front panel USB connectors
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 connectors USB3 or USB4 to
connect the front-mounted ports to the motherboard.
Pin
Signal Name
Function
1
VREG_FP_USBPWR0
Front Panel USB Power
2
VREG_FP_USBPWR0
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
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.
AUXIN1: Auxiliary-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
Function
1
AUX_L
AUX In left channel
2 GND
Ground
3 GND
Ground
4
AUX_R
AUX In right channel
EZJ1: EZ-Watcher interface header
This connector is for use with EZ-Watcher interface only. The EZ-Watcher
allows you to adjust the CPU frequency according to your desire.
Pin
Signal Name
Pin
Signal Name
1 PCDAT
2 PCREQ
3 SCI#
4 PCIRST#
5 GND
6 VCC
7 GND
8 VCC
9 GND
10 VCC
