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.

P4B266-C

P4B266-C SMBus Connector

SMB

1

 

FLOATING SMBCLK

Ground SMBDATA +3V

9.Internal audio connectors (4-pin CD, AUX, MODEM) (on audio models only)

These connectors allow you to receive stereo audio input from sound sources such as a CD-ROM, TV tuner, or MPEG card. The MODEM connector allows the onboard audio to interface with a voice modem card with a similar connector. It also allows the sharing of MODEM_IN (such as a phone) and a MODEM_OUT (such as a speaker) between the audio and a voice modem card.

Ground Ground

Left Audio Channel

Right Audio Channel

 

AUX (White)

 

CD(Black)

P4B266-C

 

 

MODEM

 

P4B266-C Internal Audio Connectors

Modem-In Ground Ground

Modem-Out

 

 

ASUS P4B266-C motherboard user guide

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