Turn of pcie link state in your bios & disable sleep settings. Its what I do in all my builds & change you power plan to high preformance unless you like it going into windows hibernation sleep mode. I dont bother as Windows sleep hibernation has a habit bug wise to throw static. All I do is if I need to turn of my monitor no diffrence if you disable sleep hibernation settings for windows. It doesnt actually use any more power that if you use those settings 1 got 4 with out sleep hibernation settings activated & Link state disabled in all bios's on mine & my stepsons builds. The myth off desktops using a lot of power with them being used or diabled is a myth as you end up drawing more using the sleep hibernation settings. Do some in depth testing research. I think give my idea a shot as I dont run into static issue like I use to but that's a bug from OS not AMD driver fault.
I'm having the same issue, didn't you ever solve this?