Intel DQ57TM Manual Do Utilizador

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Desktop Board Features 
17 
PCI Express* x16 Graphics 
The Intel Core i7, Intel Core i5, Intel Core i3, and Intel Pentium processors in an 
LGA1156 socket support discrete add-in graphics cards via the PCI Express 2.0 x16 
add-in card connector.  The board supports the following PCI Express speeds: 
•  PCI Express 2 frequency of 2.5 GHz which results in 5.0 Gb/s in each direction 
(500 MB/s) per lane.  The maximum theoretical bandwidth on the interface is 
8 GB/s in each direction, simultaneously, when operating in x16 mode. 
•  PCI Express 1 frequency of 1.25 GHz resulting in 2.5 Gb/s each direction 
(250 MB/s) per lane.  The maximum theoretical bandwidth on the interface is 
4 GB/s in each direction, simultaneously, when operating in x16 mode. 
Audio Subsystem  
The board supports Intel High Definition Audio through a Realtek ALC662-VC audio 
codec as well as through the HDMI interface. 
The Realtek ALC662-VC-based audio subsystem provides the following features: 
•  6-channel (5.1) audio with independent multi-streaming stereo 
•  Advanced jack sense for the back panel audio connectors that enables the audio 
codec to recognize the device that is connected to an audio port.  The back panel 
audio connectors 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 via back panel connectors 
•  Headphone and Mic in functions for front panel audio connectors 
•  A signal-to-noise (S/N) ratio of 90 dB 
The board provides onboard audio headers and back panel connectors.   
The onboard audio headers include the following: 
•  Front panel audio (a 2 x 5 pin header that provides headphone and mic in signals 
for front panel audio connectors)  
•  S/PDIF audio header (1 x 4 pin header)  
•  Internal mono speaker header (1 x 2 pin header)  
Front panel headphone output is supported by a separate audio channel pair, allowing 
multi-streaming audio configurations such as simultaneous 6-channel (5.1) surround 
sound playback and stereo audio conferencing (through speakers connected to the 
back panel audio connectors and a headset connected to front panel audio 
connectors). 
The onboard internal mono speaker header allows connection to an internal, low-
power speaker for basic system sound capability.  The subsystem is capable of driving 
a speaker load of 8 Ω at 1 W (rms) or 4 Ω at 1.5 W (rms). 
The onboard S/PDIF header allows connection to coaxial or optical adapters for digital 
audio output. 
The back panel audio connectors are configurable through the audio device drivers.  
Audio software and drivers are available from