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I replaced my power supply with a new one. I connected all cable to the motherboard 24-pin and Molex, HDD and DVD power cable, then I started my PC and I used it for about one hour.

After I shut down my pc, and I wanted to start it again. But the PC is not starting and the motherboard LED won't light up. The PSU was set to 230V because I live in Europe.

My new power supply is dead? How could that be?

Specs:

  • CPU: Core 2 Duo
  • PSU: ATX 470W
  • Motherboard: Asus P5QL PRO.
  • my new PSU has a similar problem. Look at my question here: (superuser.com/questions/523379/strange-smps-behavior) – Spandan Chatterjee Dec 26 '12 at 6:48
  • in my case i think the problem is the gpu, because when I detach the gpu the pc start. – flatronka Dec 26 '12 at 13:44
  • You did say that the computer can start without the GPU plugged in. I am thinking that the PSU is not powerful enough to power the computer with the GPU. What kind of GPU is it? – icebox3d Dec 26 '12 at 17:03
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    the old one is 450w the new is 500w. I try the psu without my pc I connect green and black cable, but its not starting. Is dead, but I don't know why. Maybe electricity problem in the haus? – flatronka Dec 26 '12 at 19:49
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    the video card had been broken this caused the problem – flatronka Jul 13 '13 at 17:51

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