Hi, Martin.
I have ASUS Prime X470-Pro and faced this problem. Done some investigations and found some stranges.
Davidinlv82 has the same board, BIOS 5216, earlier supplied dbg file with
ASUS WMI GETINFO[00] = 0, 0, 1, 3, = CPU Core Voltage
ASUS WMI GETINFO[01] = 0, 3, 1, 3, = +12V Voltage...