Sorry, I posted the above before I was done.
I haven't yet tried slowing down my memory. I doubt that this is related, but I'll try it since other people did.
I've run Ryzen Master while doing the testing. I see the CPU running the driver (and the target program) going up to a higher speed. However, I don't see any increase in temperature at all. It maintains a steady 27 C. If there's a temperature problem, I suppose it would show up in the histogram.
My questions are:
1. What's the problem here? Is the CPU doing an emergency shutdown, is it overheating? Why would IBS make so big a difference? How can I get a power plan that will work to prevent the problem?
2. Would someone with the right diagnostic hardware like to run my driver program? I can provide a user side application and a kernel driver.
3. Would anyone with this problem with an ASUS motherboard, who solved the problem, please report what you changed.
4. I hope to get an AMD hardware and/or BIOS and/or HAL engineer involved in this discussion.