ASRock P67 Extreme4 Gen3 no lights no power

system has been up and good for years... I had a Thermaltake 750W PSU, Intel i5 2500k, ASRock P67 Extreme4 Gen3, 60gb SSD / 4tb Raid 0 hd setup, GTX 680, 8gb RAM system. Nothing too exotic. Yesterday I powered the computer down to remove the GPU to be replaced with a gtx 770. When I returned and installed the 770 the fans started and promptly turned off, and has not done anything since.

I have already checked and rechecked the connections on the m/b also, have been trying to startup using the on-board power button. But still got nothing. No lights on the m/b and yes I've already checked to make sure i'm using a good plug.

I have already removed the new gpu and have attempted startup without it. Still nothing. I have also re-seated the plug that goes to the m/b and cpu. I don't have a way to test my power supply or m/b other than replacing to see what works.

I'm at the end of my wits.... I'm thinking it's the power supply. But some insight would be great.
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  1. Sounds like dead power supply to me. Don't buy Thermaltake crap, but something good like Antec, Corsair, XFX, FSP, etc.

    Most good power supplies have a 5yr warranty.

    Make sure it's at least 80+ Bronze rated. If it can't meet that basic rating it's no good.
  2. i was leaning toward the psu as being the culprit because i've had it since 2007.
  3. nope... not the PSU...

    replaced it and still the same outcome. Next up, the M/B... :(
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