[Linux] Freezes on Asrock X370 Taichi + C6 enabled

Prodif wrote: On a firmware of v2.36 package C6 it is possible to disable, on the version is higher this option is deleted. And you have what version of a firmware?

I'm using latest firmware 4.60. There is no explicit package C6 option. I only commented what I observe with zenstates.py after changing Power Supply Idle Control option. Apparently it affects package C6.

So what exactly is package C6? Does it refer to CPU package or something on the motherboard?

UPDATE: I found some info here, though it's talking about Intel: https://software.intel.com/en-us/articles/power-management-states-p-states-c-states-and-package-c-states#_Toc383778911

I suppose AMD uses similar terminology. So package C states still refers to the processor. If that's correct, there is a chance Ryzen 2 will fix this mess


Edited by shmerl - 07 Mar 2018 at 1:56pm

Prodif wrote: shmerl https://www.amd.com/system/files/2017-03/AMD-Ryzen-Processor-and-AMD-Ryzen-Master-Overclocking-Users-Guide.pdf CPU low power c-states (CC1, CC6, and PC6) ..

Is PC6 - package C6? That document doesn't give any details about what it is.


Edited by shmerl - 07 Mar 2018 at 2:05pm

Well, that explains the sequence, but not what it is. I suppose package refers to the whole set of cores in this case. Anyway, as I said, if it's all in the CPU, getting new one like Ryzen 2 can potentially provide one that works with PC6.

I don't disable the whole C6, that's too much and stresses the CPU. Setting it like above with power supply idle mode is already enough to prevent the freeze, and as I said, it only disables package C6, while leaving core C6 enabled.

Still not ideal, but will do until I'll get Ryzen 2.


Edited by shmerl - 08 Mar 2018 at 12:56am