Yes C2D ready as is. You can get a MINOR boost in performance. My current cpu speed is 2420Mhz. That isn't much compared to the OCs other boards allow. Hopefully a bios update will help. There are a couple of other problems. I'm using the Intel stock cooler at present and the cpu seems to be cool enough (barely warm to the touch) but the temp readings have run from 50c at idle to 62c under load. These readings don't "feel" right, and I have read several posts relating to inaccurate Asus sensor readings. The large red north brige cooler does however get very hot. If I keep this board both coolers will be replaced.
Should you buy it?
"I am currently building my first PC, and I want an easy, stable motherboard. SLI is preferred, and under $150. So naturally, the p5nSLI caught my eye. I do not want to do any serious OCing, just a little experimenting"
Based on that, I will tell you that of the many motherboards I have used, none have gone from the box to up and runnig any more quickly than this. But will they all be as easy, or was I lucky this time? I have had easy times with boards that made others crazy and went crazy with boards that gave others no problems.
I will also caution you that once you begin overclocking "a little experimenting" Is never enough. "Free" speed is addictive, and "enough" is often dictated only by the depth of your wallet.
If you haven't already, read this article,(
http://www.anandtech.com/mb/showdoc.aspx?i=2820) and then decide if you want to buy, or wait until either this board is improved by a bios update, or a wider selection of 570sli boards become available. If other 570 boards perfom well then mayby there's hope for this one. If not then you can avoid my mistake.