Hi, I have read alot of posts about heat issues with the NB of the P5N-D. I was have a bit of an overheating problem with mine too, although it wasn't that bad, mostly when my GPU reached high temps during gaming. It was easy to avoid by turning the fan on mu 9800GTX+ way up before playing. My temps of the MOBO usually will stay around 38-39c under full load if I do this. However I just wanted a better fix. As many of you know, under the massive heatsink of the P5N-D are the NB chip and the PCIe2 controller and NOBODY makes an aftermarket heatsing for this board. What I did was to simply take off the heatsink, remove the crappy factory thermal compound, cleaned everything off and reapplied some Arctic Silver 5. After doing this I no longer have to have my GPU fan cranked all the way up for gaming (39-43c) and idle around 31-32c. Some work involved but a worthwhile fix for this heat problem. By the way I also use that little heatsink fan that came with the board. I have noticed during my research of this that the older P5N-D's seem to have a reddish anodized aluminum heatsink, mine (maybe newer?) has a copper heatsink, at least it looks that way, I could be wrong. Was this Asus's attemp at a fix for this heat issue?