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USB2: Front panel USB ports
The mainboard has two 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 USB2 to connect the
front-mounted ports to the mainboard.
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 NC
Not
connected
Note:
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.
USBCR1: USB Card Reader connector
This connector is for connecting internal USB card reader. You can use a card
reader to read or transfer files and digital images to your computer.
Pin
Signal Name
Function
1 USBVCC2
+5V
dual
2
USB2-
Data signal port 2-
3
USB2+
Data signal port 2+
4 GND
Ground
5 Key
No
pin
Note:
The USBCR1 is shared with one of the USB ports of the I/O back panel.
See “Connecting I/O Devices” for more information.
Please check the pin assignment of the cable and the USB header on
the mainboard. Make sure the pin assignment will match before
plugging in. Any incorrect usage may cause unexpected damage to the
system.
SMI1: System Management Interrupt
This connector is for use with SMI hardware interrupt power management.
Pin
Signal Name
Function
1 -EXTSMI
Sleep
button
2 GND
Ground
