

This is most likely more expensive, because you need 2 water cycles. One with a clean cooling liquid that carries the heat from the CPUs to a heat Transfer/cooling block, and then another system that passes river water over the cooling block. You cannot just use the river water directly because of all the sediment and other elements in untreated water that may clog or corrode your pipes.







Unless they find a way to save some dollars with this loophole.