Possible faulty GPU

[Milesgreg46]

Sorry if I come across as I noob (I am). I’ve recently built my first pc, I’ve been a Mac user for a long long time but I was fed up of only being able to game on my PS4. So I’ve put the pc together and all seems well, it’s finding all the hardware in bios. My issue is when ever I try to play any games the pc freezes and crash after about 5 minutes of gameplay. I’ve made sure all the drivers are installed and up to date. I’ve tried to uninstall the gpu drivers and reinstall them. I’ve read it might be due to a faulty gpu. The games that are crashing are BF5, la noire, black Mesa. My specs are

MSI 450 Gaming Plus Max
AMD ryzen 5 3600x
Samsung 860 Evo m.2 ssd
Gigabyte rx590 gpu
Corsair vengeance 16Gb

Any ideas of what I can check before sending the gpu back as faulty?

 

[Black Dog]

How are you temps and what power supply are you using?

 

[Milesgreg46]

My gpu is running at 75 degrees and my power supply is a Corsair vs650. Sorry I forgot to include that info in the original post.

 

[Black Dog]

Power supply seems okay. Is that 75c after gaming for 5 mins or idle? Can you tell my your CPU temps and are you overclocking at all?

 

[Milesgreg46]

Na it is 75 after gaming for 5 minutes. It seemed pretty stable too.

 

[Milesgreg46]

No overclocking either. Everything has been left standard.