System Management Bus Header [Smb1]; Internal Audio Connectors [Cd1, Aux1] - Abit SI7-Serie Schnellinstallationsanleitung

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(8).

System Management Bus Header [SMB1]

This header is reserved for system management bus (SM bus). The SM bus is a specific implementation
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of an I C bus. I C is a multi-master bus, which means that multiple chips can be connected to the same
bus and each one can act as a master by initiating a data transfer. If more than one master simultaneously
tries to control the bus, an arbitration procedure decides which master gets priority.
(9).

Internal Audio Connectors [CD1, AUX1]

These connectors connect to the audio output of internal CD-ROM drive or add-on card.
SI7 Series
Chapter 2