Latest bios code from amd was bugged so there is no new beta bios right now for any of the boards.

Well I wrote the Gigabyte Support. They told be to use their own software to read to voltage. Needless to say it too is showing the +0.5V offset. 


Some other issues I noticed:

1. No RGB Setting can be found. The Fusion RGB Strip is on by Default, but for the love of god, I can't find the settings.
2. This is supposed to be a high(er) end board by the use off X570 but so far I have not seen an option to change the DRAM Boot Voltage.

Talking About boot voltage, not just the normal DRAM Voltage. I'm having stable fast OC Setting on a warm boot, but whenever I cold boot with those Settings, the BIOS will reset. I figured this is happening because the BIOS is applying lower voltage on boot.


I figured there is no more RGB Fusion Control inside the BIOS. I guess I have to download yet another Windows Software for the RGB Control.

i'm observing similar issues..

i'm using the newest bios: F4j

major issue:
my vdimm offset is about +0.024 to +0.036, i.e. setting the voltage fixed to 1,440v would result in 1,464-1,476v reading in bios...(under load it may be even higher offset..)
where does that offset come from??


missing-options-issue:
where are the settings for m.2 slot modes? cant find them in bios!

there is realy no rgb setting inside the bios - compared to asus aura on my last board (which was quite bad in terms of lighntning controls), the rgb fusion is even far worse! linking board-led and dimm-led effects? not possible...


confusing-and-annoying-issue:
advanced mode..well...ALOT options can be found in various menus, but those are not syncronized, which REALY confusing!

examples...
memory timings:
1. tweaker -> advanced memmory settings -> memory subtimings -> XYZ // here you can find primary, secondary, tertiary timing settings, procodt, geardown, cad settings..
2. settings -> amd overclocking -> DDR and infinity fabric frequency/timings -> DDR freqency and timings -> XYZ //here you can find four submenus, containing the same options as above, but theyre not synced to what you changed in the above path...

voltage settings like VDDP/VDDT can be found in the tweaker AND in the amd overclocking submenu AND in the AMD CBS -> XFR enhancement submenu...
three times the same options, but again not synced!

precision boost overdrive? the same.

"wake on lan" option? exists in thhe settings -> platform power submenu AND in settings -> IO Ports -> intel i211 menu -> NIC configuration..


no-description-issue:
what ist the "xmp high frequency support" option doing? can't find any explanations on the effect this setting has...but it's located in the top level of the tweaker section!

what's the difference between the cpu loadline calibration options - what's the difference between "normal" and "standard" setting? what about others from same menu?

the same question applys to the tweaker -> CPU & VRM section -> pwm phase control. 6 options, BUT whats i.e. the difference between "Mid PWR" and "Balanced"? 

Re-posting here for visibility -

I had R&D look into this - actually any software reading of a voltage (even bios) can be off from the actual voltage at the cpu. It's an approximation. So we did 3 tests. What does bios say, what do the voltage points on the x570 master say, and what can we read from the cpu socket.

Set ram to 1.35 (xmp or manual, same result)
Save, exit, reboot.
Bios said 1.38
Voltage points said 1.37
Cpu socket said 1.364

So there does seem to be a 9mV "overshoot" in this test but to be frank that's really not a big issue. I get that we all want to set x and see x, dead on, no variance, just rock steady exactly what we put... But that's not really how voltage works. The number we put in bios actually goes through a large equation that also affects other voltages. It's all interdependent.

You would see the same thing with vcore. Software, voltage readout points, and testing the cpu socket will all be slightly different and rarely exactly what you typed in bios.

This is also a function of our philosophy when it comes to bios, temperatures, etc. We show you the value without any trickery. The same way we put vrm temperature proves smack in the middle. We could offset the probe a few mm and lower the temp, but what's the point? To what end? The idea behind readouts is to give you the most accurate information so you can tweak, optimize, or just check how the system is running. We are doing the same with voltage. We could set an offset to "show" 1.35v, even if the cpu is getting 1.364, but we don't. We are looking into ways to display a closer approximation of the voltage, ie 1.364 just like the cpu socket, but we won't do this through a magic hidden offset.

If you are dead set on getting as close to exact as you set you could try going 0.01 lower than you want, but even that is an approximation and will vary based on board, Psu, and cpu. The only true way to dial in an exact value would be to probe the cpu socket and test various settings until you hit the exact voltage you want.

Tl;Dr it should be fine. If you want to see a lower voltage then lower the input (~10-15mV) and see if its stable.

P. S. Ryzen master appears to just be reading the register (ie setting) from bios. Not what the voltage sensor says. The sensor is doing its job, but impedance affects reading vs reality.