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?

Thank you! I will try with v5.10 since I have to upgrade to it anyway and report if I still have trouble with the BIOS ignoring my settings. I wish ASRock would give a complete change log for updates

I have a small question about "* Please install "AMD all in 1 with VGA driver ver:18.10.20_NHDA" or a later version before updating to this BIOS."

Do I really need to install the driver with VGA if I don't use an APU? I'll check later when I can, but I think that I already have this driver version, but without the VGA and downloaded directly from AMD's website. Will it work?

RTC screenshot

Ray62 wrote: The thread here: http://forum.asrock.com/forum_posts.asp?TID=7890&PN=1&title=1800x-x370-taichi-freezing-issue

Vielen Dank für die Antwort Yeah, I knew this thread, and I had a look at the other one on overclock.net. It seems like v5.50 has a new bug with the monitoring of the CPU temperature, which negatively affects the CPU fan speed! I'm going to try to do more testing in the coming days, and I have measured the RAM read and write throughput with the default settings to be able to compare and see if I also have this 18?? bandwidth drop mentioned in the first thread I linked to. I think that I will ask there on overclock.net if they have a recommendation, too

My question was more about how to properly set the RAM in the BIOS than about the freezes. Does your X370 Professional Gaming also have BIOS bugs like Taichi? What settings do you use for your memory? I think that I should be able to run the RAM with the "safe" settings that Ryzen Calculator gives me for 2666 MHz, but if the BIOS doesn't apply or does not remember the settings...

Thank you very much for your answer anyway, Ray62. I really appreciate it

In BIOS 5.10
AMD CBS > Zen Common Options > Power Supply Idle Control
is still available.
In BIOS 5.50 it is removed.

But you are not alone with that problem. There already is a thread here in the board from somebody. He also posted this in the big x370 Taichi thread in
https://www.overclock.net/forum/11-amd-motherboards/1627407-asrock-x370-taichi-overclocking-thread-496.html

05-16-2019, 02:29 AM