PC dying randomly

[undow]

I have my pc for about a year now and i build it myself. Last week when i was gaming it randomly turned all my devices (monitor, mouse etc) off but my pc stayed on. After this my power button didn't react to anything. It's happening more and more now and I haven't found a fix yet. I never had problems with my pc so far. The only thing that I can see is that the radiator of my cpu cooler is pretty dusty.
PC specs: gpu: aorus rx 580
cpu: ryzen 1600x
Mobo: asus prime x370 pro
cooler: corsair h60
ram: corsair 16g ddr4 2666mhz

 

[CountMike]

Might be overheating, which BIOS do you have ? Last one is 4011. Also check if pump is running full speed when that happens.

 

[Plumboby]

check you PSU might be maxing out tapping out could be a dud PSU generally they exibit the same issue if about to fail. Have had good quality PSUs failing booting my pcs down in the past chech you PSU first throw a wattage meter over it make sure your system build is pulling the correct amps/ volts I suspect either overheating or dude PSU.