Intel Desktop Board DQ57TM Technical Product Specification

Product Description
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1.10 Legacy I/O Controller
The Legacy I/O Controller provides the following features:
• One serial port
• Serial IRQ interface compatible with serialized IRQ support for PCI Conventional
bus systems
• Intelligent power management, including a programmable wake-up event interface
• PCI Conventional bus power management support
The BIOS Setup program provides configuration options for the Legacy I/O controller.
1.10.1 Serial Port
The serial port is implemented as a 10-pin header on the board. The serial port
supports data transfers at speeds up to 115.2 kbits/s with BIOS support.
For information about Refer to
The location of the serial port header Figure 11, page 47
1.11 Audio Subsystem
The board supports Intel High Definition Audio through the Realtek ALC662-VC audio
codec as well as the DisplayPort interface.
The Realtek ALC662-VC-based audio subsystem supports the following features:
• 6-channel audio with independent multi-streaming stereo.
• Advanced jack sense for the back panel audio jacks that enables the audio codec to
recognize the device that is connected to an audio port. The back panel audio
jacks are capable of retasking according to the user’s definition, or can be
automatically switched depending on the recognized device type.
• Stereo input and output through back panel jacks
• Headphone and Mic in functions for front panel audio jacks
• S/PDIF audio header
• A signal-to-noise (S/N) ratio of 90 dB
1.11.1 Audio 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 1.3, page 14