Setter , what clips are you usingto hold the fans on? The clips I had from OC are diffrent and are a little intrusive on the ram.
http://www.overclockers.co.uk/showproduct.php?prodid=HS-002-PL&groupid=701&catid=57&subcat=1395
http://www.overclockers.co.uk/showproduct.php?prodid=HS-002-PL&groupid=701&catid=57&subcat=1395