AMD 1700 Ryzen 7 working with memory DDR4-3400
AMD has published a visual confirmation that the processor Ryzen 7 works with high-speed RAM DDR4-3400.
The processor and memory was installed in a motherboard ASUS Crosshair VI Hero.
Two memory modules of G. Skill total production capacity of 16 GB worked with delays 18-17-17-37-1T. It is unknown, as is the case when using all four slots. Perhaps in the manuals motherboards will note that for maximum performance, you should take two slots for memory modules.