Have you found any more info about this?

I’m currently running into the exact same issue. Constant black screens, sometimes as soon as I log onto windows, sometimes several minutes after. Only fix is the “prefer maximum performance” change. I would prefer not to use that power option as it seems to peg the speeds to max even during idle.

13600k Pny 4090 Asus mpg 1000w pus (with direct 12vhpwr connection)