21
PSW1: External Power switch
This power switch is an alternative connector used for specially designed
power connectors.
Pin
Signal Name
1
2
3
+5VSB
GROUND
POWERON
USB3/USB4: 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 connectors USB1 and USB2 to
connect the front-mounted ports to the mainboard.
Pin
Signal Name
Pin
Signal Name
1
3
5
7
9
VCC
USBP-
USBP0+
Ground
Ground
2
4
6
8
10
Ground
Key
USBP1+
USBP1+
VCC
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
Modem_IN: Modem-in header
Connect a modem add-on card to this header. The cable is bundled with the
add-on card.
Pin
Signal Name
1
2
3
4
MONO-OUT
GROUND
GROUND
PHONE-IN