Product Description

1.11 Audio Subsystem

The boards support the Intel High Definition audio subsystem based on the Realtek ALC880 or the Realtek ALC860 audio codec. The audio subsystem supports the following features:

•Advanced jack sense (front and rear panel) that enables the audio codec to recognize the device that is connected to an audio port. All jacks are capable of retasking according to user’s definition, or can be automatically switched depending on the recognized device type.

•Stereo input and output for all jacks

•Multi-streaming capabilities that enable different audio streams to be sent to different audio devices. Multi-streaming also allows one audio stream to be directed out the back panel while another audio stream can be directed out the front panel.

•A signal-to-noise (S/N) ratio of 90 dB

INTEGRATOR’S NOTE

For the front panel jack sensing and automatic retasking feature to function, a front panel daughter card that is designed for Intel High Definition Audio must be used. Otherwise, an AC ’97 style audio front panel connector will be assumed and the Line Out and Mic In functions will be permanent.

1.11.1Audio Subsystem Software

Audio software and drivers are available from Intel’s World Wide Web site.

For information about

Refer to

Obtaining audio software and drivers

Section 1.4, page 19

 

 

1.11.2Audio Connectors

The boards contain audio connectors on both the back panel and the component side of the board. The component-side audio connectors include the following:

•Front panel audio (a 2 x 5-pin connector that provides mic in and line out signals for front panel audio connectors)

•ATAPI CD-ROM (a 1 x 4-pin ATAPI-style connector for connecting an internal ATAPI CD-ROM drive to the audio mixer)

The functions of the back panel audio connectors are dependent on which subsystem is present. The 8-channel (7.1) audio subsystem is described in Section 1.11.3; the 6-channel (5.1) audio subsystem is described in Section 1.11.4.

For information about

Refer to

The locations of the front panel audio connector and the ATAPI CD-ROM

Figure 21, page 68

connector on the Desktop Board D925XCV

 

 

 

The locations of the front panel audio connector and the ATAPI CD-ROM

Figure 22, page 70

connector on the Desktop Board D925XBC

 

 

 

The signal names of the front panel audio connector

Table 22, page 72

 

 

The signal names of the ATAPI CD-ROM connector

Table 21, page 72

 

 

The back panel audio connectors

Section 2.8.1, page 63

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Intel D925XBC, D925XCV specifications Audio Subsystem Software, Audio Connectors
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D925XBC, D925XCV specifications

The Intel D925XBC and D925XCV are motherboards designed for Intel's LGA 775 socket, targeted primarily at the desktop market during the mid-2000s. These motherboards support Intel's innovative 800 MHz Front Side Bus and provide a robust platform for various computing applications, including gaming and multitasking.

One of the standout features of the D925XBC and D925XCV is their compatibility with Intel's Pentium 4 and Pentium D dual-core processors. These processors deliver impressive performance, especially for users engaging in demanding tasks such as video editing and 3D rendering. The support for dual-channel DDR2 memory allows for increased bandwidth and improved overall system performance, accommodating up to 8 GB of memory in total.

The motherboards are equipped with the Intel 925X chipset, which integrates advanced technologies. This chipset supports Intel's Enhanced Memory 64 Technology (EM64T), allowing for more efficient processing power and better resource management. The presence of the I/O Controller Hub (ICH6) also enhances connectivity options, including SATA 3.0 Gbps interfaces for faster data transfer rates and improved storage capabilities.

Regarding expansion and connectivity, both motherboards feature multiple PCI Express slots along with PCI slots, allowing users to customize their systems according to their needs. This expandability is essential for gamers and professionals looking to add advanced graphics cards and other peripherals. Additionally, these boards come with integrated audio, ensuring satisfactory sound quality without the need for additional sound cards.

The D925XBC and D925XCV motherboards also include integrated Ethernet controllers, supporting fast network connectivity essential for gaming and high-speed internet access. With multiple USB ports available, users can connect a wide variety of devices easily, enhancing the flexibility of their setups.

In terms of form factor, both boards follow the ATX layout, providing compatibility with a broad range of computer cases. This ensures ease of installation and upgrades while promoting good airflow and optimal thermal management for the components installed.

Overall, the Intel D925XBC and D925XCV motherboards integrate essential features and technologies that provide a solid foundation for desktop computing during their time. With strong processing capabilities, expandability, and good connectivity options, these boards were well-received by users looking for reliable performance and versatility in their systems.
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