By couple of Db-1's, you mean 2 or more? Please explain how this works though. By having the 2 GTX SLI Waterblock, and the D-tek Fuzion V2 Quad Core Insert and the Db-1's, how does this all come together to work. With the reservoir of water with the CuSO4·5H2O (btw I'm a chem major so I know this stuff) and the tubing, does the tubing run through each of these with the water mix and takes the heat out and brings it back to the reservoir or what?