Yeah, basically Rev 2. I actually did have the same thing before...
The nForce 2 Ultra 400 is like the nForce 2 chipset on steroids. Asus has started using it in their rev2 boards for some reason. Towards July, or the end of the summer, there will be newer boards out there that are specifically made with the Ultra 400. AMDMB forums, specifically the Asus Mobo Forums, has a lot of info on it. I think Asus Ultra 400 version will be the Asus A7N8X Deluxe Ultra or something. I'm not sure. All I know is that the outside of my box has a 400 MHz FSB ready sticker on it, and it has a sheet with changes to the manual, stating the NB is the nForce 2 Ultra 400 Chipset. The chipset itself doesn't say Ultra 400 (I just took off the nb heatsink), but, it is it.
Sadly, the last mobo that I blew was the same thing, except this one has 2 blue Dimm slots, my other one had all three of them being black. But, anyways, I'm going to Salman Idaho tomorrow for a cousins graduation, so I'm holding off until after then.
I also got a paid internship at the school I'm going to, for the summer. 8.15 an hour.
Gonna be a fun-filled summer!