The radiator, pump and PSU were installed in the bottom section of the case prior to the motherboard tray being inserted. This allowed us better access to the space below without interference from items above.

With the motherboard tray, PSU, and graphics cards installed, it was clear that the fittings between the graphics cards needed to be replaced. The high flow fittings were too long, and made it impossible to get the Tygon tubing installed without removing the cards. From experience, it is easier to have the cards installed and screwed down tight to see what the final distance will be between the cards in SLI or CrossFire configurations. Once you take measurements you can take them apart to install the tubing. In our case, once the shorter fittings were in place, the tubing was easily cut, positioned and clamped into place with the cards fully installed.

Each tube was laid out step by step, making sure to allow the hose to bend in the direction is naturally wanted to go. Forcing the tubing into a shape it does not wish to go can put extra stress on the block and the seal between the fitting and the tubing - and the less stress on the system, the better.

Above is an example of finding the right curvature for the tubing to the CPU from the pump. Since the pump was placed directly under a large opening, we wanted to ensure that there would not be any additional stress put on the CPU block from a tube that wanted to bend in a different direction. By hooking up one end of the tubing and letting it hang down, it was easy to see how to get the best fit and bend to the tubing. This was the same for all of the connections, where we had to find the right curvature, course and length for maximum flow.