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Intel Desktop Board D975XBX Product Guide
14
Related Links
Go to the following links or pages for more information about:
• The latest list of tested memory,
http://support.intel.com/support/motherboards/desktop/
• SDRAM specifications,
http://www.intel.com/technology/memory/
• Installing memory, page 31 in Chapter 2
Intel
®
975X Express Chipset
The Intel 975X Express Chipset consists of the following devices:
• Intel 82975X Memory Controller Hub (MCH) with Direct Media Interface
• Intel 82801GH I/O Controller Hub (ICH7DH)
Related Link
Go to the following link for more information about the Intel 975X Express Chipset:
http://www.intel.com/products/desktop/chipsets
Audio Subsystem
The desktop board D975XBX includes a flexible 8-channel audio subsystem based on an Intel High
Definition Audio codec:
The audio subsystem features:
• Impedance sensing capability for jack re-tasking
• S/N (signal-to-noise) ratio: > 90 dB
• Power management support for ACPI 2.0 (driver dependent)
• Intel 82801GH I/O Controller Hub (ICH7DH)
• SigmaTel audio codec
• Microphone input that supports:
⎯ Microphone array
⎯ Acoustic Echo (AEC)
⎯ Beam Forming (BF)
⎯ Noise Suppression (NX) technology
The subsystem includes the following connectors:
• Front panel audio connector, including pins for:
⎯ Line out
⎯ Mic
• Back panel audio connectors that are configurable through the drivers of the audio devices:
⎯ Line in
⎯ Three Line out
⎯ Mic in or Center LFE out
⎯ Two digital Line out:
• One coaxial Line out
• One optical (Toslink) Line out