Polaris unstable @Desktop/stable @3D?

[PatSteven]

Hi there,
I've got a Sapphire RX470 Nitro+ 8GB undervolted to 1025mV on the last 3 states. Clocks are stock.
It works fine, passes OCCT, FireStrike, Heaven, Valley and Battlefield 1 for hours without anything, even with voltages @1015mV.
But if I start the computer just for surfing, office etc I get graphic failures.
As soon as I give some load on the card everything works well again untill next restart, even if I'm doing some desktop stuff.

Does anyone have a clue whats the problem and how I could prevent it except leaving voltages @stock?

I am wondering why i dont get failures while gaming if the voltage is to low?

 

[EarthDog]

Because the voltage isn't too low for gaming... you set it manually. When it idles, it lowers the clocks and voltages. Consider raising the base voltages up a bit too.

 

[PatSteven]

I raised State1-State4 by 10mV. Still failures but not that much. I'll raise a little more.
But why do I have to rise State1-State4 when it runs on stock perfectly if I dont undervolt State 5-7?

 

[Johan45]

Did it run fine before you modified the different states?

 

[Sentential]

It's been my experience that down clocking normally affects core speed not memory so my guess would be the Vram is to blame, try backing it off a tick or two

 

[PatSteven]

I tried now every state and VRAM voltage @ 1025mV at the same time.
Still same failures on desktop

If I let every voltage @stock i dont get any failures.

 

[PatSteven]

I think it is a problem mit the refresh rate. I got those problems only @144Hz.