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[SOLVED] No signal out of pcie lanes

Oct 27, 2019
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I bought a new case for my pc since the old one had big thermal problems and after cleaning the dust off everything, putting everything into the new case then plugging everything back in its place the pc starts, the fans start spinning like the hdd but i cant get a signal out of my pcie lanes. Ive put my gpu in all 3 lanes and my friends gpu but no luck. The gpus power light is on like it should. I tested my monitor with his pc and it works. So my question is should i try it with a new mobo ( im thinking about buying a cheap or used b350) or try a 1200g and see if i get a signal out of the igpu? Or get a mobo fault code speaker?
Specs:
Mobo: asus x370pro
Cpu: ryzen 2600
Gpu: gtx 1070
Ram: 16gb gskill aegis
300gb ssd and 1,5tb hdd
Case is fractal design define c
I dont know if i should bring it to a specialist since it will cost more then fixing it myself.