Well, then why don't they put this warning for other mining gears that use separate PSUs if the purpose is what you claim? I don't know what to believe since I have not tried any of that, but my guess is that the warning isn't a random one, also I just noticed that the tool you are using is not the standard bitmain fixture that folks like Zeusbtc and other sellers on Alibaba sell, you are using the Russian version asic.repair which is a whole different tool, so maybe different tools - different setups.