Hi I Currently Have a Dell Dimension 4500 P4 Desktop PC. The Other Day i was using my computer fine with no problems, i left it running while i went to sleep and when i woke up i was going to use it to look up somthing on the internet. I clicked the mouse because i thought it went into standby mode but nothing happened. I looked at the front power button on the computer and it was dim green instread of bright. I unplugged everything and made sure all connections were connected firmly and tried turning it back on again. Still the same thing happened. No Fans Turn on, nothing comes on the monitor excfept for the monitor test that says the screen is working properly. I Tried replacing the power supply. Still same issue. The Green light is lit up on the motherboard so i know its getting power, but i dont know if it went bad or not. How can i determine what went wrong on my computer or what i need 2 replace so i can get it working again. Anything will help thanks.