For AMD family 17h Model 70h (Ryzen 3000) CPUs you need kernel version 5.4rc1 or newer or kernel with this patch: https://patchwork.kernel.org/patch/11043277/
It would be very helpful for me for further development of Zenpower if you can share debug data from zenpower. [Read more](https://github.com/ocerman/zenpower/issues/12)
- On some systems the SVI2 values for Core/SOC may be swapped. As a workaround you can install module with `sudo make dkms-install MCFLAGS=-DSWAP_CORE_SOC` to swap them back. (Should be fixed in version 0.1.4)
- The formula for calculating amperage/wattage from raw values may not be correct for all systems. (Should be fixed for Zen2 Ryzen CPUs in version 0.1.4)