Hello. What best settings for Ryzen 1600.
On opt 3.7.5 cpuminer-4way.exe get 550-600 h\s. It`s ok ?

maybe you try cpuminer-aes-avx2 or cpuminer-sse42
im not have ryzen but i think it faster than 600 h/s
I'm getting about 1150 h/s on R 1700 using aes-avx2. Limit the threads to number of cores and set up cpu-affinity to use all the cores and not just the first ones.