*Update* So to try and figure this out I decided to take apart all the plugs and plug them in one by one to hopefully weed out the problem. Now when I start it up there isn't any video output. Also, the computer won't turn off by pressing and holding the power button or restart by hitting the restart button. I have to press the power button in back from the PSU to turn it off. Well for a while my computer was working just dandy until about 2 or 3 days ago. I'd leave my computer on when I was at school and come back and the blue screen of death would be up. After a while it would happen quicker. And now it finally kicked the bucket. I can't start it up at all. It says Windows failed to start up and it gives me 4 different options to choose from and no matter which one I select it freezes and restarts. So then I take this hard drive(hard drive 1) out and replace it into my brother's computer and it doesn't boot up in his either. So I then take hard drive 2 out and try it in his computer and it works. When I put hard drive 2 in my computer it does the 4 different options and freezes up too. Now I don't know what the problem is.