Asus P4S333 User Manual
Page 49
ASUS P4S333 motherboard user guide
2-27
7. USB headers (two 10-1 pin USB1, USB2)
If the USB port connectors on the rear panel are inadequate, two USB
headers are available for additional USB port connectors. Connect the
bundled 2-port USB connector set to this header and mount the USB
bracket to an open slot in the chassis.
8. SMBus connector (6-1 pin SMB)
This connector allows you to connect SMBus (System Management
Bus) devices. Devices communicate with an SMBus host and/or other
SMBus devices using the SMBus interface. SMBus is a specific
implementation of an I
2
C bus, a multi-device bus that allows multiple
chips to connect to the same bus and enable each one to act as a
master by initiating data transfer.
P4S333
®
P4S333 SMBus Connector
SMB
1
SMBCLK
Ground
SMBDA
T
A
+3V
FLOA
TING
P4S333
®
P4S333 Front Panel USB Headers
USB1
USB2
OC2#
GND
USBP4+
USBP4
–
USB Power
GND
USBP5+
USBP5
–
USB Power
1
5
6
10
1
5
6
10
OC1#
GND
USBP2+
USBP2
–
USB Power
GND
USBP3+
USBP3
–
USB Power