Yeah, arbitrarily heat the temp sensor to at least 60C. If the fans aren't running full speed it's because it's not hot enough to need to do so.

The main regulator isn't directly cooled by those fans anyway so that shouldn't change much.

Also how are you getting over 130GH average when 250MHz peaks at 110GH? And then the fans idle down? That only happens when it's cold, and if it's cold it's not hashing at 120% theoretical max.

I think something is wrong because too much of what you're saying you're seeing doesn't make sense.