so i bought a ryzen5 2400g with a gigabyte AB250n-gaming/wifi mobo. the 2400g wouldn’t boot (needed bios update) , so i bought a ryzen 3 1200. updated bios , install the 2400g and all is good.
i had some ddr4 2133 ram (dual channel kit) i put in there, it ran ok with that. i overclocked the ram to 2933, and it is stable there.
overclocked the 2400G to 3.9Ghz and its stable there, albeit hot (need a better cooler, and hot enough i didnt try for more Ghz). so i returned the cpu to stock settings and left the ram overclocked to 2933; it seems to like that.
now i have a spare ryzen 3 which i may build into something to sell.