System Freeze with Black Screen, ROG Card led turns white, no resp., hard reset need

[cronus75]

Mainboard : Asus Prime X370-Pro
V.Card: Asus Rog Strix GTX1080 AG
CPU:Ryzen 7 1700x.
ddr4 corsair 2x8Gb.

Clean install of Windows, no extra AMD drives installed for mainboard. Latest bios.
Latest Nvidia drivers installed for v.Card.

Tweak installed, Aura installed set the cards led to smart temperature setting.

Video Card is powered by single output.

System freezes on desktop while surfing with black screen of no response, video card leds turn white, as something is happening changing status of card. Reset button is not working, shutting down the psu.

What could be the problem? Before this board and cpu, this same card was working.

3200Mhz Corsair is working at 3200Mhz with xmp. It was working at 3066 at previous Asrock mobo with Ryzen 5 1600.

Do I have to connect video card with two different outputs? Power problem?

[Chino]

What PSU are you using? If possible, try swapping PCIe power cables and run two instead of one.

[soulfear]

Mine is doing the same thing but most of time I'm able to play NFS Payback for a hr or so n it doesn't crash but looking at chrome or outlook it crashes randomly