Not possible to adjust DRAM voltage for B450M/ac mobo manually
Not possible to adjust DRAM voltage for B450M/ac mobo manually
Your memory remains stable under the specified XMP configuration, including the Vdimm setting.
I thought the same thing too, but even when I enabled the "Load XMP Settings" tab as Auto, it still wouldn't allow me to retain the DRAM Voltage settings. It's stable enough, though. I've managed to keep it at 3666mhz, but it didn't really make sense to maintain that speed.
The CPU is a Ryzen 5 3600X and the ideal RAM speed is around 3600mhz. I prefer not to increase the speed further, but I'm interested in experimenting with lower latencies using higher voltage.