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USB2: On board USB port
The mainboard has USB ports installed on the rear edge I/O port
array (see page 34). However, some computer cases have a
special module that mounts USB ports at the front of the case. If
you have this kind of case, use auxiliary USB connector USB1 to
connect the front-mounted ports to the mainboard.
Pin
Signal Name
Pin
Signal Name
1
3
5
7
9
VCC
USBP2-N
USBP2-P
GND
Key
2
4
6
8
10
VCC
USBP3-N
USBP3-P
GND
OC#
J1: ExtSMI connector
The ExtSMI connector is for use with SMI hardware interrupt
power management.
Pin
Signal Name
1
2
EXTSMI
GND
SPEAKER1: Internal speaker
Connect the internal speaker connector to this header.
Pin
Signal Name
1
2
3
4
External speaker
Onboard buzzer
NC
VCC