I put a Vantex Iceberq on the NB of my 8RDA+. I didn't do any rigorous before and after testing (plus other things have changed before and after), so I can't say whether my ability to run higher fsb (up to 205 mhz, maybe higher, haven't tried) is related to that or not. I have a hunch it is, in part. With the stock NB heatsink (I did remove the pathetic sticky pad and used AS3), I noticed that it was getting pretty hot.