Hi, what's the cheapest motherboard to support ryzen 3200g/3400g out of the box? I see a lot of cheap mobos ranging from 50-70$ but they require bios update in order to work with 3rd gen cpus, and to update the bios I think it needs an older gen cpu installed on mobo to boot up/access bios. Any help is greatly appreciated!
Asrock's B450 series are one of the cheaper brands. Check with the seller if the box has 3rd gen ready sticker on it indicating it has the updated bios. There's a good chance it has, if the motherboard left the manufacturer around the time of gen3's release or there after.
Someone in the comments is running a 3200g. Still check for a sticker though to verify it's not old stock.