I kinda have the same problem, my power led stays on even when the computer is off, so basically its on 24/7. According to my mobo manual it tells me to plug the power led into pins 2 and 4 but my problem is that it plugs into 3 pins and not 2. So I just plugged the power led into any 3 pins until it lit up. I would like to fix this too if someone knows the solution.