After 6 years of no issues at all, my computer showed me the blue screen of death. It said that I had a bad pool sector. Now, when I try to turn it on, nothing happens. I thought it was the hard drives, so I out them on a USB to my laptop and tested them (looked for bad sectors). They both were fine and I was able to get all of my information off of them. I put them back in my computer and when I turned the computer on, the screen didn't come up at all again. My guess is that my graphics card has gone bad, but i'm not sure. Any input? Thanks.