Loving the CPU! Switched from i5-8400 (and before it I had 2700x), still, this will beat both of them. Super powerful. Using it mainly for programming and math simulations. It's really sometimes 4x faster than 8400. Using it with F8 and a a400 cooler from Huananzhi. The setup is quite stable.
I purchased for HUANANZHI X99-TF motherboard. It is in very good condition and is working fine. The packaging was also polite.