Asus have an option in AI Tweaker but I think the option to Auto OC is only available on Intel platforms. I could be proven wrong by you parsing some images of what you're seeing in BIOS. I looked through the manual for your motherboard and I can't see the option for an Auto OC.
Speaking of which, you're looking to overclock the ram and the CPU or the CPU alone? Best you do either of them, manually.