Razer headset not showing up

[Daviiiddd]

I've recently built a new pc, I have a GTX 760 and I'm using a HDMI cable to link it to my screen. I also have a Razer Tiamat headset but when I plug it into the headhpone and mic jack sound wont come through it? I've looking in my settings and it doesnt say that I can enable it.

Does anybody know whats happening?

 

[Daviiiddd]

For anyone else who has this problem... go to the motherboard manufacturers website and download the latest audio drivers