3. HARDWARE SETUP 20) SMBus 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 I 2 C 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. SMB 1 SMBCLK Ground SMBDATA +5V CUV4X SMBus Connector Connectors 3. H/W SETUP The following PANEL illustration is used for items 21–26 (next page).
Power LED Speaker Connector +5 V PLED +5V ResetCon Ground Ground SPKR Ground +5 V MLED ExtSMI# Ground PWR_SW Ground Message LED SMI Lead ATX Power Switch* Reset SW CUV4X System Panel Connectors * Requires an ATX power supply. ASUS CUV4X User’s Manual 39 CUV4X