I don't know what's going on. I added 8 Gb Ram with a Samsung SSD, and I keep getting the most annoying high pitched noise now. I had to take the whole thing apart just to get to my hard drive bay. I have the 2012 model too. Is there something I'm missing? I've plugged it into 2 different outlets, once by itself. I'd hate to get rid of it, but I can't even watch a tv show without wanting to pull my hair out.