Take the time to verify that your selected ram is supported.
Ryzen is picky about ram, not all ddr4 ram will work.
Look at the ram supported list for your motherboard.
And... do not plan on adding ram as an update.
Ram is sold in kits for a reason.
A motherboard must manage all the ram using the same specs of voltage, cas and speed.
The internal workings are designed for the capacity of the kit.
Ram from the same vendor and part number can be made up of differing manufacturing components over time.
Some motherboards, can be very sensitive to this.
This is more difficult when more sticks are involved.
That is why ram vendors will NOT support ram that is not bought in one kit.
Best to buy your 2 x 16gb kit up front.
and... buy a 2 stick kit not one. 2400g graphics depends on ram speed. dual channel is faster.