HP OMEN 25L black screens and fans run loud after i boot up heavy duty games

[blitx]

my HP OMEN 25L black screens and fans run loud after i boot up heavy duty games it should run the game with high graphics even on low graphics it can happen and i am frustrated because it has been happening for years and i don't want to spend extra to eventually find the sollution i have the nvidia geforce 3070ti kingston fury 2 sts of 8gb ram and an intel core i7 with the normal fan cooler and 600 wat psu and i don't know which part is failing me i already checked non of the hardware is faulty. and i want to try to replace the psu or ram as i think they are the problem but i don't want to spend the money to check it out so i need someone to tell me what to do i can't do it right away as i am on vacation but i really need to resolve this issue because no way i can't run roblox on the max graphics when i played with my cousine or the last of us part 1 at any graphics settings i just need it to act like a pc with a 3070ti and intel core i7 and 16 gb of ram instead of an old dusty pc because i have cleaned it and tested if it runs hot and it doesn't seem that way it hangs at 60-80 celsius which i read online is normal. so please i need help because it goes black screen and fans run loudly but i can still hear audio and i have 2 monitors hooked up aswell

[blitx]

it does boot up every time and i have to forcefully hold the on button to stop the pc and restart again