On one of my computers it has a little green light on the back near where the power goes in. When I plug the power cord into the back of the power supply the green light flashes and the computer does not turn on. I opened up the computer and I unpluged the power from the power supply to the mother board and the green light went from flickering to just staying on. I pluged it back into the mother board while the power supply was powered and the green light still stayed on and the computer worked perfectly. When I shut it down and unpluged the power from the wall and pluged it back it went back to flickering. What is wrong? I also have a similar problem with another computer except I cant get the power supply to power the computer at all. Any help would be greatly appreciated.
ok that will probably solve the problem with the first computer but I was just playing around with the other one that wont even turn on and I used my good power supply and right when I plug it into the wall it turns on but all that happens is the CPU fan starts. No hard drive clicking or anythign (power is going to the hard drive as well). What's the problem with that one?