Ok so im having issues with my PC I think...? I recently really started to notice the problem when I started playing fallout 4. I have a GTX 970, I5 4690k, 8GB ram. But I can hardly run fallout 4 on ultra. I only get about 30 FPS. But I think my issue is my RAM. I use hardware monitor and I have noticed that the longer my PC is on the lower my "Available memory" will go down. When I restart my PC it starts at 6.4 even tho i have 8gb. then over a course of a few hours it will drop down to 0.3 eventually causing my PC to freeze and need a restart to get back to 6.4... Is my RAM bad? Is this why im getting bad FPS? Thanks In advance.