X370 Taichi - trouble with RAM settings

Hi, I tried again and with the "safe" settings recommended by Ryzen Calculator for 2666 MHz, it does not work, even with Command Rate = 2T. It entered a boot loop... by the way, what should you do in this case? I pressed the power button on the front of the case, which turned the computer off, and then I??pressed it again, another loop, I pressed the power button again, but this time it didn't seem to turn the computer off. However, a short while after that, it reverted to the default settings and completed POST. This scared me a little. What is the right thing to do here?

I then tried enabling the XMP profile, changing the frequency to 2666 MHz (instead of 3200), and then I set the SOC and DRAM voltages again, without touching the timings, and so far it works, but I??haven't tested any intensive program yet.

I have three questions :

1. Recommended thing to do in case of a boot loop?
2. I notice that the BIOS always seems to add a slight amount of voltage to the values I set there. Like, with a DRAM voltage of 1.330 in the BIOS, I see 1.344-1.352 in HW Monitor on Windows. I set it to 1.300, and now I see 1.312-1.320 in HW Monitor. Why?
3. With BIOS v5.10, my CPU seems to have a higher boost clock. But besides turning on the XMP profile, changing the RAM frequency, SOC voltage (1.01875) and DRAM voltage, I left everything else on Auto. A few cores even went up to 4016 MHz briefly. Is this not worrisome?

Ray62 wrote: 1.) Boot loop: Too much dependencies! Use correct settings or what do you expect to read? As i posted, the calculater save settings may be not save enough. Generate save settings and use them with a lower clock in the bios. What you did with the profile for 3200 and freq change to 2666 has this effect too (good idea). ...

Thank you! Yes, I understand what you say and I remember you said that the Calculator settings may not be safe enough My first question here was not asking which settings to use, but what should I do in case a PC enters a boot loop like this? Was it a good idea to press the power button? And when do you do a clear CMOS? I have never done this before at all

Since bios 5.1 my board also most time gets stuck on startup with debug code 40. I press the reset button and then the board starts. Power button also works.
This is a cold boot issue and i totally forgot that.
I have the board and power supply on the desk without housing and use the buttons on the Mainbard. Switching supply on, after 3-5 seconds reset and 10 seconds later the OS login is there...

So my AM4 platform is still a test setup.

I solved the problem with the startup.
It was the activated "Fast Start" option on windows 10 shutdown!
I set it to deactive and the problem is gone.

I think, a windows update happend shortly before or after the bios update, changed the setting or the implementation of this stuff.
I cannot remember that i touched this windows option before.

So my memory settings still are stable.

[URL=http://www.kernel42.de/rtc/G.Skill_F4-3200C14-16GTZ.html]My G-Skill 2xF4-3200C14-16GTZ data read with THAIPHOON BURNER:[/URL]

I use 1.37V for DRAM and 1.05V for the SOC.

And i suggest reading
https://www.techpowerup.com/reviews/AMD/Ryzen_Memory_Tweaking_Overclocking_Guide