I have a ryzen 1600
The Problem is when I set -t 7 than the exe crashes. I use the hodlminer AVX2. When I run -t 8 550 hash/s. With -t 7 600 hash/s and better power consumption
It seems to crash on odd numbered threads. You can try opening 3 instances of -t 2, so you have 6 threads running. This seems to be the most stable for me.