Question GPU fans revving up at low temps after 20 minutes of playing ?

Nov 3, 2021
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Hi, i received a pc around 3 weeks ago. It worked fine for 2 weeks but after a vacation i got a blackscreen with gpu fans revving up, the pc was still on and i had to shut it off myself. When restarting i had around 5 minutes to play before it doing the same thing again.

Temperatures are not the problem, it happened at 30°

The motherboard always gave 1 beep when starting up since i got the pc. I didn't see it as a problem since the pc worked fine before. (Ram sticks are not the problem)

The pc starting up is really inconsistant because sometimes it just start revving immediately but after a few times of restarting it gives me 20 minutes.

I tried wiping the ssd and hdd to see if it was a software problem. It didn't work and it still started revving with blackscreens, no now i have no Windows installed.

Specs:
Psu: liteon ps-7501-5
Intel i5 core 7th gen
Rx570 gaming
256gb SSD + 1tb HDD

The graphics card was a geforce 1060 but it got replaced to the current one because the guy that gave the pc to me still wanted to use that.

I got myself in a pretty messed up position.
Any help would be much appreciated!