I am back online after a noob issue. We had a bad lightning storm a few weeks back and my computer circuit must have taken a hit. My battery backup started sparking. Then my video card started acting strange. So I decided to upgrade from a GTX 750Ti 1 GB to an RX 580 with 8GB. First mistake was not checking how many pins in the power supply connection. After I bought a 6pin-to-8pin adapter, I thought I was in business. But everything was crashing. So I started reading online about it. Every post ended with the need to upgrade the power supply. I had 650W PS, so I thought I was good. Then I started thinking. The system is over 5 years old. The PS is not even 80+ rated. So I asked my son about swapping video cards with me. Turns out we had a 850W 80+ GOLD PS sitting upstairs. Out with the old, and in with the new. The RX 580 works like a charm. We are now hitting the 100Mbps limit on our Internet with 3 of us streaming at the same time.