Question modify low power /idle/ memory clock on Rx 570?

[bobalazs]

I'm trying to increase the default idle 300 Mhz memory clock of rx 570 with MSI AB. as it often causes graphical glitches. i edited voltage curve with control-F but i dont see any option to modify idle memory clocks, only the 3d clocks.
Any tips on how to go about that?

 

[bobalazs]

Well i found a half-solution. I went to wattman settings and under global wattman-memory - STATE 0 Min STATE 1 STATE 2 Max
i clicked STATE 1 and "set as minimum state"
So that means i don't idle to 300 Mhz, but no graphics glitches at all no matter what i do. Power consumption however increased by about 7 watts (pulled from wall)

 

[Stuka87]

I have not had any issues with being at idle on my RX 480 (Sapphire card). I did back int he day with my old 7950, where I had to go in and manually disable the zero state, because it would never 'wake up' out of it.

I wonder if which ever card you have has a BIOS that sets the defaults too low?

 

[VirtualLarry]

That's actually interesting, and I wonder, if that has anything to do with my occasional flashing with 2D desktop display on my RX 570 cards, at 4K 60 UHD 4:4:4. Maybe memclk is default too low at "idle" clocks. Or maybe it's not transitioning the memory clock during vblank properly.

 

[bobalazs]

The defaults are 300 mhz, a bit low, and it should have been fine, but the glitches occur when any load is required and the gpu possibly is slow to increase the clocks.
I'd like to set a clock somewhere in between, the 1st state 300 and 2nd state 1000 Mhz. But that's not possible without a bios flash.

 

[Shmee]

What model RX 570 do you have and does it have a backup BIOS?

 

[bobalazs]

Its armor 8g oc, no backup switch unfortunately.