I'm having trouble with my pc. For some reason it just stopped working, just out of the blue. I recently upgraded my pc, I installed a new r9 280x and it was working fine all night long and all this morning. I turned my monitor off for a while and had to do some stuff and then I come back, turn it on and it won't display anything. I thought my graphics card was dead so I put in my old one. Same problem. Doesn't display anything. I tried reseating my cables and even replacing some of them. It gives everything power because my heatsink, card, and case fans all start up but it won't display anything. I did everything I could, don't know what to do from here. I even both cards with both PCIe slots but still nothing. Also, there no way I can connect to my motherboards integrated solution because it doesn't have one. Neither does my CPU. I'm running an FX 8350 on an obvious AM3+ platform on the 970a chipset. Help would be appreciated.