ATM, I run a Xeon X3220 G0 Kentsfield on my modded AW9D. I had to up the GTLREF voltage from the standard 0.63*VTT to 0.7*VTT (a little less would perhaps have been enough, but I wanted to be sure) to stabilize the system. Now it runs perfectly stable at stock (2.4GHz). Had no time to overclock yet, though. But the idea of getting a quadcore to run stable on that old board is probably enough. The performance boost sometimes is really huge, depending on the application. And I still have 8GB of Micron low latency DDR2 RAM. Only 4GB of it installed. Again no time to test for stability with more, ATM. I thought about getting a newer board (X38 or X48 based) quite often in the last few weeks, but always discarded the idea after a few hours. It just is not worth it, especially considering the time and money I already spent on modding my AW9D. AND: It runs stable. So why replace it? If there comes the day when it stopps working, or when it's computing power will not be enough anymore, then I'll happily get something new. But until then, I think I'll just keep my AW9D.