TerraMex, I think we agree on the physics of what is going on, (at least I didn't see anything to argue about in what you wrote) but are approaching the problem from different directions. You are doing a threoretical physics approach, while I am taking a simple language approach.
For instance, I agree that 100% saturation doesn't occur in a natural solution (though it gets close in some places) however it is a good working approximations.
I think my description of what could happen is consistent with what BR describes, including using his own temperature figures taken from his earlier posts (I don't know where you get your numbers from, but they aren't the same.) However I'll admit that it's "guestimation based" rather than on any direct evidence.
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TM: Dehumidifier re-heates the air to minimize temperature diferentials between the ambient air because it's not his job to maintain cool air. We just want less RH.
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Only partially true. A dehumidifier that didn't rewarm the air would have a very clammy feeling exhaust because the air it output would be colder but still have a very high RH because it was cold. I have experienced this with window AC units in Southern Louisiana - the air coming out is cold, but still so damp that it condenses into fog and feels clammy. (And a few minutes later the cooling coils ice up and freeze solid!)
What I am proposing in effect is to put the computer box at the output end of a fanless dehumidifier. What you and BR are proposing is to put the computer box between the condensor and the rewarmer.
Gooserider