As for motherboard i would go with the msi B450 Tomahawk or the msi B450-a pro but all msi b450 boards have the bios button.
Easy to flash the motherboards without cpus.
Easy to flash the motherboards without cpus.
I already have a Ryzen 1700, I mined a lot of XMR in the past and I pay the CPU with it
It's very tempting to change for a Ryzen 9 3900, it's a monster, but I don't know if I'll do because electricity in my country is very expensive at the moment and probably will not worth, but as an old miner, it's tempting me everytime
Why do you recommend such expensive board when you can get something like 40euro board for Ryzen9? The same goes for PSU prices? .. It has huge impacts on the ROI of the setup.