I just posted on the motherboard section about the e8400 and mobos. I had an Asus P5N32 E and it will never be compatible with Wolfdale!! I flashed to the newest BIOS and still wouldnt run it at full power. I called Asus tech support and they told me that it would never accept wolfdale. Now I am using my Evga 680i LT board, which worked with no Bios flash. I know for sure all 680i LT, 680i, and 780i boards are compatible. But you have to make sure you buy XFX, Evga, BFG etc. Dont buy an Asus!!!