I would have to say that my experience with ECS mbs is that it's a complete case of hit or miss. Hit with a good one and you'll have a nice fast system that's rock solid. Miss with an ECS and you'll get intimate with the RMA process of your chosen VAR. It's a brutal kind of a catch 22 in the fact that ECS gives an outstanding price to value ratio but you're always worried if you're going to get a system that runs or one that causes you nothing but trouble. I've gotten to the point that the risk doesn't out weight the benefit...go with something that has a better brand name and you will spare yourself a lifetime of worry and frustration...