Ok. The thing is I was running the Windows 8, which probably doesn't have to do with anything, but it froze, so i had to shut my computer down. When i turned my computer back on, the LED would come on, but nothing else would power on (e.g. mouse, keyboard, monitor). I got frustrated after a while and I dis-connected the power cable from my mother board, and made sure everything was in all the way and what not, and once i put the power supply back in, it wouldn't power up at all. The catch is, the LED on the back of the power box wouldn't turn on, but when i disconnected the power supply from the mother board, the LED would come on. Whats the issue?

Additional info: Compaq Presario SR1910NX