Surround sound not outputing through pc.


Mar 17, 2013
So i was trying to hook up my old RCA RT2770 5.1 channel surround sound to my pc. Using the motherboards built in s/pdif port and the receivers it seems that only stereo is being output (with sub woofer). However with the test built into the windows settings it is output just fine. I opened up mw2 and selected 5.1 speaker setup (also tried windows default) and it was just stereo. Kind of bumming me out, but some insight would be nice. Do i need a sound card?

I should also say that the configure button is not able to be selected..
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