Question about AMD Ryzen 5 1600

I think it's a nice midrange gaming system. It looks OK. However, I would spend 10 cents more on the be quiet power supply and take the 600W version. The things are solid but the efficiency is only 80% silver standard. It makes sense to go a bit bigger, so that you are guaranteed to be on the safe side, even with OC or later with a larger graphics card. In addition, a certain "overdimensioning" of power supplies protects the electrical components in the power supply itself.

I would save a little on the mainboard. A good B350 mainboard is also sufficient. And stick to the 500 watt version. That is completely sufficient. Even with OC. New graphics cards are quite power-saving and the Ryzen is also extremely power-saving.