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#11
Yes, i am also very curious about this,motherboards are robotic and human checked before exit the factory for sale and with the first "problematic" motherboard they alert\stop everything.They don't rely on luck.
Maybe 1 motherboard "escaped" from the check,but 4,well i don't know,4 problematic's motherboards in a row is suicide for the company.
Gary said he had the same symptoms in all 4 motherboards that's why i suspect a faulty hardware conflict.
To try with a different PSU is a good idea.