Question My Dual channel doesn’t work

[Everesttheraccoon]

I have a b550m-c motherboard and I brought new ram from walmart but if i put it into a1 and a2 it works if I try a1 and b1 don’t work even a2 and b2 don’t work but I do get 16 gb to work still

 

[Lutfij]

Please pass on a link to the ram kits(old and new) you're trying to work with. BIOS version for your motherboard at this moment of time?

What processor are you working with?

 

[Everesttheraccoon]

Ryzen 3 is my cpu