

This is a sign that the efficiency at stock frequencies was already stretched. You can see that by the fact that any OC stays well under 5% in additional frequency, but the power consumption rises much more. What's more, the 3080 has been pushed to the limit by default. They couldn't even keep the card rock stable at stock frequencies initially, so now is probably not the time to add OC on top of that. Until then, i would refrain from OCing the GeForce RTX 3080 whatsoever right now. I'm sure there will come an Afterburner version sometime soon which will take this into account.

With the GeForce 456.55 driver, they just managed to stop the crashing, by implementing certain changes in voltages vs. Even though this hasn't much to do with motherboard/CPU overclocking, or overclocking of an MSI product, i'll try to answer something.
