Yes I did, mega fussy am I, I mean as it is the card is the loudest thing in the systems I was building and I just couldn't hack that rattle and the noise made the computer sound like it was just about to break down (impending failure kinda thing). I also RMA'ed a brand new Enermax Liberty because it would let out the occasional 'buzz'.beast said:did you RMA your HIS back because of the rattle?!
When you get into silent computing a whole new world of problems appear, but for the moment my HIS is working great, If you are not happy with the card then RMA it.
In your situation I am not sure what I would do, if I had not had the spare HIS card here I would have been unlikely to replace it with another HIS . . .