OK it is hard to advise when I do not have the same mobo to test with but I would say run Prime95 large FFT (or whichever one says stresses the memory) and whilst that is running have hwinfo open and check the Vsoc value. If the Vsoc is below 1.3 whilst running Prime 95 then you are ok, if it is over 1.3 then go back into the bios and disable auto voltage controls and try to limit it that way then retest , if still over 1.3 then lower the Vsoc in bios again.
I rewatched the vid and they mentioned Vddio but did not say what to do about it, I would just lower it by 0.1v and see what happens, if all stable leave it like that until a new stable bios is available from Asus.