Yesterday my computer crashed randomly while gaming and when i restarted the pc to check if that were the problem my pc didnt boot back on. I tried booting my pc without the graphics card and using integrated graphics from my processor and it worked. I got told it was my psu that were the problem. Today i went to buy the corsair RM750 psu and i connected it to my pc and the fans starts to spin but i get no response from my monitor. I tried removing the gpu and testing the integrated graphics agian but that didnt work either this time. What could be the problem?