Ok so a while a go me and my brother switched hard drives cause I had the better computer but it wouldnt boot up or anything on mine. After that I built a monster computer which is amazing. But I came back to see and I plug everything in though ive come to the conclusion that the HDD LIGHT IS OFF . I boot up no beeps nothing wrong power lights on the HDD light is off and I think this is why there was no monitor signal and I remember that light always being on when it booted up. is there any way to fix this or did I screw it up?