I have a http://www.gigabyte.com/products/product-page.aspx?pid=4481#ov . Because the integrated sound card has issues i bought this http://www.asus.com/Sound_Cards_and_DigitaltoAnalog_Converters/Xonar_DGX/ Now for my question... Which has better sound quality? the one motherboard has or the dedicated i just bought? (my speakers are 2.1).