Using a blowdryer/hairdryer is the quickest way to get rid of the moisture but it also helps to place the board in front of a fan for a few hrs after doing that to make double sure steam/water vapor from the heat has been dried out too.
If you have any or can get some, a quick cleaning with circuit board cleaner is also helpful to remove any possible contaminants sitting on the board's surface causing voltage creep or bleed over.
Once the system is working as it should, you can do as I've done and use a film of dielectric grease to coat the board.
You don't have to glob it on, just get a thin film of it on each board component to seal the board in this way, plus CB cleaner will remove it if needed. Be sure to completely
coat the components from all sides/angles to ensure the sealing of these components and be sure to remove the excess grease - Again all that's needed is a thin
film of it. You can also get it into slots and the like you would suspect would be vulnerable to moisture getting in and it also makes your RAM easier to install too.
I have a videocard that was spared death several times from the coating I gave it, complete with water pooling up on the card from a coolant leak but the card never missed a beat and still works today.
This is one method you can use to help combat problems with water or condensation hurting things. Be sure if you do this, get the clear grease, not the white stuff. What I got came from O'Reileys auto parts and it's called CRC Technician grade Di-Electric grease compound and it comes in a small 3.3 oz can.
Good stuff.Edited by Kryton - 1/19/11 at 9:29pm