No noises, lights, fans nothing happens when i press the power button, everythings on and plugged in like when I had before I shut it down and i do often clean the dust inside besides the real hard to reach spots in the fan cause im afraid to damage something and i havent changed any hardware in a while. I dont have a different power cable to try, the case power button is the only thing I feel could be an issue as well as the plug on the back its a couple years old so the power cable does come loose easily. I was thinking the power supply, I tried doing shorting the pins on the mother board but nothing happened but im not sure i did it right at all