Vega 56 restarting my PC?

[Kirky2k15]

Recently upgraded from a 290x to a sapphire pulse vega 56 GPU

 

PC now randomly restarting - can be anywhere from 10 mins to 2 hours

 

GPU temps low to mid 60 degrees under load

 

Tried DDU to uninstall and reinstall latest drivers from AMD and hasn't made any difference.

 

Specs in sig

 

I suspect my PSU so have ordered one of these

 

https://www.cclonline.com/product/260930/220-G3-1000-X3/Power-Supplies/EVGA-SuperNOVA-1000-G3-Power-Supply-1000W-/PSU1616/

 

Thoughts?

[Guest]

What's your current PSU, if your system is using close to the maximum amount of power it can shut off. Especially under load, when components are drawing the most power.

[Kirky2k15]

5 minutes ago, Darpyface said:

What's your current PSU, if your system is using close to the maximum amount of power it can shut off. Especially under load, when components are drawing the most power.

Cooler Master GM750W which I've had since 2015 and have not had any problems with - until I installed my new GPU...