Well, what I meant was, a setting to configure the boot training voltage (which defaults to 1.2v on some boards no matter what you do). On ASRock boards it seems like they just did the logical thing and let the memory boot @ the voltage specified for normal operation.
It's possible they have already figured out the problem and implemented a workaround. I'm hoping Asus will fix it with the next BIOS update. Several people in that gigantic Overclockers forum thread mentioned it to the Asus rep who posts there.