Specs: Motherboard: Sabertooth Z77 CPU: Intel i7 2700k GPU: Nvidia GeForce GTX 670 PCU: Corsair TX750 Hi there, this is my first post. I am having an issue with the sound not working. The HD audio is connected properly and I am not using an HDMI cable. I'm not entirely sure if the Motherboard Sound Card works (in which case I would buy a separate sound card), but everything is connected. Would the problem be that I'm using a DVI cable in the GPU rather than an HDMI cable in the Motherboard?