I have recently built a new rig for the first time (see specs) and everything went smooth. But sometimes there's a high pitched buzzing sound, it quiets down if I move the mouse. I did a Google search and found some threads about the Corsair psu making the same noises but I can't really tell if it's the PSU or not. I tried unplugging the video card and booting up, and there doesn't seem to be any noise but can't be sure since I can't really use the computer as if I had video. The sound usually starts when I start programs or when I'm in game but sometimes it seems to be random. Everything else seems to be running fine but I'm not really an expert. Video card temp is around 32-50. Aside from the buzzing, the computer is dead silent. EDIT: Also there's a slight plastic smell in the room like burning plastic but the temps are fine. Could this be due to new parts?