MoBo MSI 970 gaming with GeForce GTX 1060 hang up Win7 Ethos

[eliseo.martin]

Hi. Please help!!
I have a Motherboard MSI 970 gaming ; got 2 GPUs
With Radeon RX 560 GPU I have Ethos and Win7 working fine.
Running only with GeForce GTX 1060 3Gb (removed the RX) PC works for few minutes then hangs up.
Same happens if I boot with Ethos or Win7.
Any advice ??
Might the card be bad?
Both fan spins; I have video signal.
Was able to do a full windows and drivers installation but after a while it hangs.. screen goes black..

Appreciate your comments!

 

[Dark Lord of Tech]

PSU?

 

[eliseo.martin]

PSU?

Corsair RM 850 .
But worth to say, about 850w should be enough given is the only GPU plugged along with MoBo..

any suggestions on BIOS settings or anything like that??

 

[Dark Lord of Tech]

Did you uninstall the AMD drivers ?