[Gizmo]

Thanks for the response.

I'm using a Danner MagDrive Pondmaster 700. 700 GPH at 1' head and a max head of 12'. My water faucet doesn't run this fast. :-)

My experience with increased VCore is similar, I don't get any benefit in performance, but I manage to generate a lot more heat.

I'm quite certain that I could get into the 2.7 range with this chip if I had better cooling on it, even without going to refrigeration. My problem is that I've got a 30C core temp rise over water temp at full load, and that is limiting what I can do. I'm thinking about buying a Danger Den RBX and seeing how that performs, unless I can sus out what I'm doing wrong with my current set up.