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If U1100 heats with 1V, no more doubts.
Always let amps at max, you can't adjust the current.
Current sinked by the board is accordingly with injected voltage and internal resistance of the short to ground...
gotcha, yeah I am not limiting the current, my PSU has the option to turn off over current protection and overvoltage protection. I took it back to customer and told them to replace the board. It would have been nice if my PSU could go up to 10A, I would have loved to see the PCH get red hot!