Hello.

Maybe, some of you can help me out. I designed a board with 4x BM1366 ASICs based on the Bitaxe and Bitaxe Hex.
The last couple of days, I tried to get it up and running, but I get no communication with the ASICs itself. The controller is sending data to it, but nothing is coming back.

What I observed is, that the current consumption is increasing when the chips are getting warm. And at the beginning, I had no heat sink (or a very simple one) on it. Could it be that the ASICs got damaged because of too much heat and current?
Additionally, I'm powering the 4 ASICs with 2.4V because 2 of them are in parallel an then they are in series with the other 2. So, overall core voltage need to be 2.4V. But what I see is, that the voltage is not equally distributed over the ASICs. The first 2 ASICs have 0.8V and the bottom 2 are supplied with 1.6V. May this be a sign that the ASICs are damaged?

Should the clock signal be available on the inverted CLK output pin of the ASIC? Because, I don't see anything there.

I hope someone can help me out.

Thanks,
Andreas