Question Screen blank fans spin really fast

[Texancowboy]

So, I have an HP omen desktop. Everything was great until about 3 months ago. Occasionally, but not always, whenever I'm gaming I'll hear the fans (assuming gpu) start spinning really fast and it goes to a blank screen

 

[rgd1101]

exact model?
check gpu temp?
could also be the psu failing

 

[Texancowboy]

OMEN 30L Desktop GT13-1365xt PC, Windows 11 Home, Intel® Core™ i7, 32GB RAM, 512GB SSD, 2TB HDD, NVIDIA® GeForce RTX™

I have to restart the PC whenever it does that. Not sure how to get an accurate reading on the temps? Any suggestions? Maybe monitor when starting the game???

How would I know if it's the PSU?