@scherade if it's any consolation some manufacturers are very "majos" I bought a patriot Viper black Manba ddr3, two modules of 8gs total 17 gs with XMC activated it works at 1866. When I bought an identical pack it only works at 1600.
According to the official patriot website it's normal... They don't guarantee that they will work if it's not a pack of 4/ 8 gs
Sends cojones...
Regards and Happy New Year

@rmc1982 said in Introduction to Ryzen [Memory, IMC, Configuration, OC]:

Very good guide to understand many parameters that are unknown with Intel. I switched in January/2019 from an i5 4690K to a Ryzen 7 2700X and I couldn't be happier. I use the memory at 3600 that comes in the board's QVL... and everything is great.

Best regards!

And you take them to 3600 with the 2700x? If so, you've got a very, very good IMC, it's usually difficult to go beyond 3400 without getting errors in the HCI... have you checked that just in case?

Best regards!