Recently my gaming pc made a lot of noise everytime I used it and I don't know why, but it did it for about a week and after it stopped making the noise my pc started lagging really badly. It normally runs games on high graphics at good fps rates but not anymore, and it even logs using just google or youtube. Everytime I turn it on tho it runs normal for a few minutes before it starts lagging really bad. This is kind of random so i'm not sure what it is. My friend believes it might be a problem with my graphics card but we're not sure.