What's the best place to get my hands on a single dashboard?

I run underclocked S9 for heating with Braiins+ at 600-1000W, with slower silent fan speeds.

But one of the hasboards gave up on me. And it's not heating enough with the current setup.

I'm now thinking whether I should replace it, or just crank up the wattage in Braiins to 1000-1300W.

What do you think?