I just finished moving everything into my new Corsair Obsidian case but one thing that's really annoying me is that my DDC-2 pump is making the whole case emit a humming sound...not really how to describe it. I tried putting foam under the pump but that only helped a little. It gets even worse once I put the side panels back on. I never had this problem with my Antec P180 case so I'm guessing the Obsidian doesn't handle vibrations as well as the P180? So would getting a new pump like the MCP355 be quieter or is it the same as the DDC-2?