This is starting to get interesting, giving more complaints to show up recently.
I suppose you guys already tried the most obvious things,
like IF 1:1 mem clock, soc voltage 1.2V etc?
Is there a reason why you would need the F11 bios?
If you system is currently stable, then i would wait on that.
Keep in mind that the 5000 series cpu’s are slowly getting out in the wild.
Just give it some time, future bios updates will likely iron out most issues.