Well, I wouldn't bother with DGX as that thing is not even shielded. I'd get the motherboard first and see if that's good enough for you. For a $150 (or cheaper) motherboard it's not a big deal. On the side not, I've heard the MSI Z87-G65 has a similar, but better TI Amp than Asrock Z87 killer. But I'm not sure how well that thing is shield as it is surrounded by PCB caps.