No I try to run the unit most of the time at temps that don't cause too much condensation in these areas. A small amount of beading on the back plate is ok. Before I encased the water block in silicon I did have more trouble with condensation mainly dripping down onto the video cards. it would run down the arm of the water block attachment. Now that these exposed areas are small not much condensation forms there that doesn't evaporate off before it drips.