3. HARDWARE SETUP 16) SMB Connector (5-1 pin SMB) This connector allows you to connect SMBus (System Management Bus) de- vices. SMBus devices communicate by means of the SMBus with an SMBus host and/or other SMBus devices. SMBus is a specific implementation of an I2C bus, which is a multi-device bus; that is, multiple chips can be connected to the same bus and each one can act as a master by initiating data transfer. Ground SMBDATA +3V SMBCLK 1 SMB 3. H/W SETUP Connectors CUA SMBus Connector 17) USB Header (10-1 pin USB2) If the USB Ports on the back panels are inadequate, a USB header is available for two additional USB ports.
Connect the 10-1 pin ribbon cable from the pro- vided 2-port USB connector set to the midboard 10-1 pin USB header and mount the USB connector set to an open slot on your chassis. NOTE: To use this header, make sure that the jumpers (see Motherboard Set- tings , BIOS) are set to USB Connect . USB Power USBP2– USBP2+ GND NC USBPORT 1 5 6 10 USB Power USBP3– USBP3+ GND CUA USB Header 38 ASUS CUA User’s Manual ® CUA ® CUA