Intel Desktop Board DG33BU Product Guide
16
Audio Subsystem
The onboard audio subsystem consists of the following:
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Intel ICH9DH I/O controller hub
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RealTek ALC888 audio codec
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Back panel audio connectors
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Intel High Definition audio front panel audio header
The audio subsystem supports the following features:
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A signal-to-noise (S/N) ratio of 95 dB
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Independent multi-streaming 5.1 audio (using the back panel audio connectors)
and stereo (using the Intel High Definition front panel audio header).
Related Links:
Go to the following link or pages for more information about:
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Audio drivers and utilities
http://support.intel.com/support/motherboards/desktop/
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Installing the front panel audio solution, page 46
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The location of audio connectors, Figure 24 on page 49
Legacy Input/Output (I/O) Controller
The I/O controller features the following:
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Low pin count (LPC) interface
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One serial port interface via an onboard header
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One diskette drive interface
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Serial IRQ interface compatible with serialized IRQ support for PCI systems
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PS/2-style mouse and keyboard interfaces
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Intelligent power management, including a programmable wake up event interface
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PCI power management support