[rabbid]

Am I correct in thinking you want to return this under DSR as the product seems not fit for the purpose you require?
If in doubt raise an RMA for return under DSR within the 7 days to protect yourself (has to be in writing), you then will have some reasonable time to return it or if you/they find a solution you can cancel the RMA but it keeps your options open as its obviously a major factor in your requirements to have a board that wont do this.