I had just purchased a R9 290. Before discovering my psu was not supplying the card with sufficient power, I had found that after installing the card along with Catalyst v14.4 the onboard audio on my GPU was conflicting with my Audigy 2 zs. Even after disabling the sound card on my GPU the sound blaster refused to put out any sound. I need help resolving this issue because I would hate to have to game with no sounds. I'm not sure, but I do believe the conflict could be happening because I'm using an HDMI cable instead of DVI. Cheers