Originally Posted by Johan45
I bench all the time so flashing a BIOS because of weird behaviour is nothing new to me. If you're having issues especially after a few crashes that's likely your best bet.
Reflashing did not help, though, only using Flashback (USB stick) did!
You really shouldn't need to mess with phase tuning unless you're pushing it under extreme conditions by that I mean LN2. This is an easy board to OC on and auto for most options will work for you.
One more reason for me to mess with phase tuning is that the audible noise of the VRM section drives me nuts. The AMD power profile combines high frequency with C-states, which leads to very audible chirping and buzzing, including mouse-movement noise. Power Saver helps, because it lower the frequency, which in turn lower the noise level (same as with other boards that suffer from this).
Changing phase control settings also should turn a stable OC into an unstable one after switching back to Auto or using Extreme. This looks like a BIOS bug to me. I am currently running another 30 loops of ITB AVX after using Flashback, let's wait for the results.