I recently upgraded my PSU to the Antec 2.0 500W on my Dell E510 that many have recommended. I plugged it into my motherboard, and my computer would freeze before it reached the blue dell logo screen. I turned it off and decided to connect the fan speed indicator cable from the PSU to what I thought was the appropriate 3 pin plug on the motherboard. Well it created a constant beep and so I turned my computer off. Now, the computer does not turn on at all, even though the motherboard does have a green light. I assume the PSU still works, but did I fry my motherboard?? Do I need to get a new one?? If anyone can help I'd appreciate it, thanks!!