after recently upgrading my gtx 970 to a 1070 I seem to be getting sound cut outs in game, they last a second up to a few seconds then the sound comes back in. everything was fine with the gtx 970. I'm using a behringer external soundcard and have it plugged into my speakers and via an optical cable to my sub. the sub continues to work when the sound to the speakers cuts out. my hjeadset a sennheiser 363d seems unaffected by the sound cut outs. Any help would be appreciated as I prefer to play with sound coming out my speakers with a sub.