[Karnevil9]

(No, when you have warm air blowing over cool parts you have the chance for condensation. Warm air carries more moisture than cold air. When a parcel of air cools and hits its dewpoint, this is when you get condensation..)

So if he runs the A/C through his computer and the air surrounding the computer is warmer than the air inside the computer, can condensation form on the Case? If it forms on the case, does it stand a chance of getting inside another component, CD, DVD, drip through a fan hole? Even if this chance is remote, is it worth messing up the machine you built, when thus far a heating problem as not been proven.

If it was my machine I wouldn't consider this approach.

Edit. Not to beat a dead horse but this is interesting.

That's the basics of evaporation and condensation. You can see that condensation has nothing to do with cooler air "holding" less water vapor than warmer air.

You often hear that condensation begins as the air cools because "cold air can hold less water than warm air." This isn't true. The air does not hold water in the way a sponge holds water - some teachers have been known to use this analogy. Air does not "hold" water the way liquid water holds salt. Scientists have known this since the 19th century, which means anyone book or teacher who tries to tell you that "warm air can hold more water vapor than cold air" is not only wrong, but is also way, way behind the times.