Ok, so today, I decided to look at the inside of my computer today. I did the following: Removed one RAM card, put it back in afterwards. Removed one of the fan cables, later reconnected it. Removed my hard drive, put it back in afterwards. Flipped a switch, flipped it back to it's original position. When I turned it on, my computer wouldn't start, and it would make a long beep noise. Help!