New build unstability

John, you can lower the min CPU power state inside the plan to whatever you want. I have mine set to 20% and my CPU idles at 1550Mhz and goes all the way up to my max OC.

In my findings, theres seems to be a problem when Windows puts some devices, including the CPU cores, in a low power state mode.

You want to leave C&Q enabled for the automatic CPU power savings. Only disable C6 state to not let Windows shutting down your CPU cores.

5% default is the Windows balanced power plan, not the AMD Ryzen one. The AMD tuned power plan is 90% minimum, so you need to tune it if you want lower frequencies at idle.

I agree with you about suggestions, but try one at a time because all suggestions at once is a mess in the end, and you didn't find what was the real cause of the instability.

I suggested to try all of that at once because it's the only combination which worked on my end to avoid random freezes and mouse stutters at idle and after long sleep periods.

Cheers.

I fear you may have combined two suggested methods of fixing the crashing based on my thoughts and ramblings. If you install the AMD chipset drivers, it'll install the Ryzen Balanced Power Plan. If you're not overclocking the CPU and are using that specific plan, you will not want to disable Cool'n'Quiet or C6 State options. Those were alternative suggestions if the Ryzen plan didn't work; a "one or the other" scenario, but not both. Sorry if my thought process wasn't able to be followed. :)