System restart or blackscreen when maxing out settings!

[pannalicour]

Hello you guys,

When I play games or do heavy gpu benchmark like firestrike either the game crashes, pc restarts or just a blackscreen and the reset would not work.

I had this problem before with my gtx 770, so I replace my motherboard, Psu and Gpu about 1 month ago. But the problem is still there!

I already ddu my nvidia drivers and install new one. I calculated on different websites and my pc should not go above 470 watt on high load and OC.

My gtx 1080 never goed above 80 celcius.

A Cpu stress test never shuts down my pc

What could be the problem?

Cpu: ryzen 1700
Psu; corsair cx550m (grey model, the better one)
Gpu: asus gtx 1080 turbo
Windows 10
Motherboard: asus x370

Sorry for my bad english

 

[norcalsc]

would have to assume your PSU is giving it on you if it's only happening on heavy loads

 

[pannalicour]

But how is that possible? Its brand new. And the psu isn't that bad it has a high tier. I know its not the greatest but its definitely not the worst.