Voltage Readings on Ryzen

[Justn]

Hi, I was wondering about what different voltages mean in Ryzen, I have overclocked my R5 1400 to 4ghz from BIOS at +0.084v offset, +0.024v offset SoC, 1.4v Dram to run at it 3466mhz. In Monitoring apps like HWmonitor and HWinfo, there are multiple voltage values which I cannot understand. For example, HWmonitor under Ryzen 5 1400 sensor shows VID of 1.25v while the sensor of my motherboard reports Vcore of 1.344v, what's the difference between two?

Also, What's CPU VDD? Also, previously I had my SoC voltage offset at +0.018v and HWinfo reported SoC Voltage at 1.087v, after increasing the offset to +0.024v, it still reports the same 1.087v for some reason, and what's the max SoC and Dram voltage I should go to for 24x7 use?

Thanks!

 

[CountMike]

In HWmonitor, under CPU Voltage (SVI2 TFN), is real voltage in the processor at time of reading.
SoC Voltage (SVI2 TFN) is also true reading for SoC.