Question New PC turns off when gaming

[Jormundur]

Ever since I've built my new pc, whenever i'm gaming, i only have a few minutes of gameplay before my pc crashes.
I've tried both replacing my PSU and my GPU, and the problem still happens. I've monitored my CPU and GPU temperatures and it looks nothing out of the ordinary.

Here are my specs:
GPU: AMD Radeon RX580 Sapphire Pulse ( also had the same problem with a nitro+ )
CPU: AMD Ryzen 5 2600
Ram: DDR4 2x8GB 3200MHz Kingston HyperX Fury
PSU: Seasonic Core GC 650
Motherboard: Gigabyte B450M DS3H

I recorded what happens exactly while i was running a benchmark test and uploaded it to imgur:

https://imgur.com/M5Cdsb9

View: https://imgur.com/M5Cdsb9

The benchmark ran for about a minute and a half before the crash happened.

Help would be much appreciated.

 

[rgd1101]

look like it just lost signal.
what the cpu/gpu temp during the test?

 

[Jormundur]

I believe the cpu went up to 59 degrees, not sure about the gpu but it was nothing out of the ordinary, i have tested it with another gpu aswell. Also side information i forgot to mention: im using windows 10, if that has to do with anything.