Articles: Mainboards
 

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And finally, the mainboard makes use of Realtek’s ALC880 AC’97 codec. It reproduces sound in the High-Definition Audio format, automatically detects devices attached to the audio connectors, and supports SPDIF connectors (the mainboard offers a coaxial output) and so on.

The parameters of this codec can be set up in the mainboard’s BIOS like shown below:

The results of my checking the audio section with RightMark AudioAnalyzer 5.5 are presented below:

Frequency response (from 40 Hz to 15 kHz), dB:

+0.24, -0.33

Good

Noise level, dB (A):

-86.8

Good

Dynamic range, dB (A):

86.5

Good

THD, %:

0.0072

Very good

IMD + Noise, %:

0.022

Good

Stereo crosstalk, dB:

-86.1

Excellent

IMD at 10 kHz, %:

0.153

Average

General performance: Good.

So, the voice of this mainboard sounds quite good.

 
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