Hi mikeywith, thanks for your answer.

That's what I guessed too, about no rest during 4 years.
You talk about phill but I don't know who he is ?

Yes now I will accept that this miner will mine with only 2 boards. I was afraid that it will consume power for the second hashboard but I guess no if he don't detect it. I can too unplug the second hashboard from power.

At least the seller refund me 33% of the amount.

Best regards.

AWZ