AMD ZEN wanted me to post this:
There is a jumper (a small removable metal piece) near the system battery and chipset controller. That jumper is in normal mode. What you need to do to access the setup menu for BUS speeds and multipliers is move that jumper over to the next pin position (so just move it down one space) into CONFIG mode. Once you have done that, restart the PC in that CONFIG mode and then set everything up. Then save the BIOS settings, and turn off the PC. Move the jumper back to normal position and start it back up. WALLA!