Pc turned off while gaming and doesnt turn on again

So basically my pc just turned off while gaming, there was still one light on on top of the case like a little white light next to therä powerbutton which also shut off after i tried to start it again. Already tried to change the power source, didnt work. Pulled out all external devices, didnt work. Pc: B550 gaming x atx motherboard for am4 amd cpu Corsair RMX Series (2021) RM650x powersupply 80 PLUS Gold Enermax Aquafusion AIO 240mm Seagate BarraCuda 2TB Kingston NV2 500GB Rtx 3060ti 8gb zotac Sharkoon RGB Wave mid tower Amd 5500x 16cb corsair vengeance ddr4 3200 Built the pc around this time last year and worked fine tbh besides the bottom fan not spinning for some reason. My temps are normal id say i dont get more than 80° on my gpu ever and my cpu also doesnt overheat. I also always update my drivers so its not that i think.