I have a opyiplex 780 and i have a xfx r7 360 hooked up to a pcie http://www.amazon.com/PCIE-Micro-Express-Flexible-Extension/dp/B00D79EV0G/ref=sr_1_2?ie=UTF8&qid=1451713556&sr=8-2&keywords=pcie+riser Thing and its not working i try to install drivers, but they don't seem to work?