Question Pc keeps crashing while playing games

[Smiler1415]

Hi
I am posting this due to some problems I have had with my pc.
My Pc: Ryzen 5 2600, rx580 4gb, 250gb sad, 1tb hard drive, 450w Corsair psu, MSI b450m mortar mb
I recently just built this system, and during light work everything is working just fine. However when I load up a game, the system freezes after about 10-15 mins of playing. This occurred during 3 games that I have. It just freezes and I have to manually reboot the system.

Wondering if anyone could give me any tips about this?
Thanks

 

[drivinfast247]

450w PSU is below what the 580 recommends. What model Corsair?

 

[Smiler1415]

Cx450m

 

[Kkkk1]

450W doesn't sound enough to me, even if they say get 450, (I've not checked) you need to get a bit higher so it's not sweating it's nuts off when under load. Also how many other devices do you have connected such as external HD's, internal HD's, USB's etc etc. Try disconnecting everything you possibly can to see if that makes a difference.