I have an update. I was reading my motherboard's manual and i just figured that if you are going to intall 2 memorys, ASUS recommends to put them in Dim A2 and Dim B2 and also if you have 1 memory it recommends to put it in Dim B2. I was putting mine in DIM A1 and DIM B1. I just switched them and i cant believe it but it just booted correctly at 2933MHZ, something that i couldn't do before when i had them in A1 and B1. I am actually testing the memorys with memtest and they are working great. I havent had any crash or any error found. So i can confirm you that i have 2 kits of (1x8gb CMK8GX4M1D3000C16 ) running in dual channel at the speed that is supposed to run with this Ryzen 3 3200G and i am not having any trouble. Something that i didnt mention before is that i just saw that in my case when i put de XMP/D.O.C.P mode and i let it all in AUTO, only putting in manual de frecuency to 2933MHZ, the auto mode doesn't set the same timings that are specified in the XMP section from the memory. An example, for the CAS latency (TCL) in automode, with XPM on, it set it to 20 when the memory is supposed to be in 16. So i put the numbers in manual mode just as the SPD/XPM list says in the Bios. Up to now its working great with no problem at all. The only thing that i had to do apart of switching memorys from DIMS is that when you change the memorys, windows do not boot because it doesn't recognize them so i had to reinstall windows. If i get any error or inestability i ll tell you.