Silent Scone@ROG wrote:
1. -30 curve value can be too high for some CPUs. These CPUs need the voltage when coming out of lower P states.
2. Idle temperatures can closely follow light load temperatures due to how core parking works with these CPU. It is normal behaviour to see cores fluctuate as close as 1.5v under low load in stock conditions. Comparing these things across different CPU architecture is futile. These CPU run fairly hot.
3. The only real enigma you face is that 85c under gaming work loads is definitely on the high side, however this is far more likely to be a mounting issue than an issue with the board. If service have requested you RMA the board for inspection then you can either do this or look more closely at your cooling solution.