I will be testing the 645LT over a 3900X. I have a set of custom cables from PSlateCustoms for the Corsair SFX units as well as for the Silverstone SFX-L unit.
I plan to test several configurations to help dispell some thermal myths in order to help determine the best possible configuration(s).
This will also be where I pit each case against each other to help determine which one offers the best thermal performance.
Unfortunately, I don't have/own all the boutique air coolers that various SFFN members desire (as some of them are quite difficult to procure) but I have a few options that should do pretty well to showcase similar performance benefits.