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USB1: On board USB port
The mainboard has USB ports installed on the rear edge I/O port
array (see page 33). 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
1
VCC
3
USBP2-N
5
USBP2-P
7
GND
9
Key
J1: ExtSMI connector
The ExtSMI connector is for use with SMI hardware interrupt
power management.
Pin
Signal Name
1
EXTSMI
2
GND
SPEAKER1: Internal speaker
Connect the internal speaker connector to this header.
Pin
Signal Name
1
External speaker
2
Onboard buzzer
3
NC
4
VCC
Pin
Signal Name
2
VCC
4
USBP3-N
6
USBP3-P
8
GND
10
OC#
30
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