I agree with the fan being audible. Yes, quiet still compared to any other active cooling but I seek silence like you. I'll tell you what: I'll disconnect all my fans except the vapor-x, see if it is audible. Edit to come..
and I see how that crossfire setup would destroy temps btw.
EDIT: Well, silent at my desk, a little audible close-up. Sealed the case and it was mute. Gaming however ramped it enough to hear, which had an unpleasant mechanical sound as far as fans go.
Whoa this is off topic from photos. Sorry, that's the end of me