If you read the guide carefully, you could see that there are many factors that affect stability. The most important enemy is temperature. The second enemy is poor quality VRM (cost does not mean that the motherboard is good). You are also trying to use the load, which is different from the AVX Light. Blender is AVX Heavy. In your case, I advise you to use LLC 3, phase mode Extreme as well as take 25 MHz from all 4 values. This will allow you to have an ultra stable system. If you don't use Blender, you don't need extra frequency penalties.