asus z370 f gaming

Hi guys, I'm having major trouble with trying to get surround sound from my PC, I ordered and picked up my PC this weekend. It's Gallium OC custom made PC by Overclockers themselves, it has a asus z370 f gaming motherboard in it, but when I try and connect my Steel Series Arctic 3 (7.1)...

Hi guys, I'm having major trouble with trying to get surround sound from my PC, I ordered and picked up my PC this weekend. It's Gallium OC custom made PC by Overclockers themselves, it has a asus z370 f gaming motherboard in it, but when I try and connect my Steel Series Arctic 3 (7.1)...