So I've built a computer recently. It has an AMD 6 core processor at 3.6-.8 GHz, the R9 270X Gaming edition graphics card, and (due to a bad stick I got from Newegg) only 4 GB of RAM. When I first booted it up, it crashed. Over and over. I took out one of the sticks of RAM and it booted up fine and I could download anything I wanted. But when I try to start up any game and actually play it even at the lowest of settings, my computer will crash and have a rough time starting up again. I will be getting back my full 8GB of RAM. Will that fix my problem?