Swiftech has designed the Apogee XT to be orientated a certain way for best performance. The screws that hold the block together are to be aligned with the CPU locking lever. This puts the center of the block on the center of the CPU.
With this orientation combined with dedicated inlet and outlet ports, the design of the Apogee GTZ XT puts the cool incoming water right at the hottest part of the CPU first, and then it flows outward through the pin matrix and out the outlet.
Installing the Apogee was very easy and straight forward. No issues with clearance on the Intel DX58SO motherboard were discovered.