gigabyte b350 chipset advanced voltage settings can be seen in picture on 2-2 M.I.T. in manual. The motherboard uses voltage offsets and doesn't allow users to manually set voltages.
The CPU will pull the voltages it needs for the frequency set.
Overclock example:
•AMD Ryzen 5 1600 @ x38.25 / 3825 Mhz
•Dynamic Vcore (DVID) offset @ +0.078V (1.332V HWMonitor)
•Dynamic VCORE SOC (DVID) offset @ +0.258V (1.116V HWMonitor)
•DRAM Voltage (CH A/B) @ 1.380V
•DRAM Memory Frequency @ x32.00 / 3200 Mhz
•DRAM Memory Sub Timings @ 15-15-15-15-36
https://www.reddit.com/r/GAAB350/comments/6a4n1f/ryzen_5_1600_gigabyte_ab350_gaming_3_overclocking/