Asus P4S333 C User Manual - Page 49
ASUS P4S333 motherboard user guide, USB headers two 10-1 pin USB1, USB2, SMBus connector 6-1 pin SMB
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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. USB2 USB1 GND USBP3+ USBP3- USB Power GND USBP5+ USBP5- USB Power P4S333 ® 10 6 10 6 5 15 1 OC1# GND USBP2+ USBP2- USB Power OC2# GND USBP4+ USBP4- USB Power P4S333 Front Panel USB Headers 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 I2C 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. FLOATING SMBCLK Ground SMBDATA +3V P4S333 ® SMB 1 P4S333 SMBus Connector ASUS P4S333 motherboard user guide 2-27