I have the regular A7N8X with the 2500+.
Just got it togethor monday. This is my first OC, so I don't know much either.
Right now I have it at 190*11.5 (2185) with memory in sync in dual channel. I think the ram is at 7-3-3-2.5 right now. It's Geil 3200.
At first, my system wouldn't start with the Geil ram in DC. Had to put them in SC (2x 512mb). I found that when I lowered the fsb to match the 2500+ at 166, I could then start it up in DC. I've moved it up to 190fsb and it still works. I might try 200 again to see if it will go. I did bump the ram .1v since I heard that this ram needs it, so maybe it will do 200 now. The ram was only $81 each, so I didn't expect much. I'm already happy with running a 2500+ at a 3000+ and the ram in DC already.
Runs at 43-45 idle and it never went past 50c during Prime95 for the 30min I ran it. Seeing how the temp is already high with mild cooling fans and 5hds in there, I think I call it quits soon. Though, trying 200*11 will only increase the cpu like 16mhz, but increasing the ram bandwidth and hopefully keeping temps the same.
I'm using the SLK-800-u for my heatsink, but with a quiet fan. I'm sure my temps would improve if I put one of those tornados on it.
What heatsink are you using, stock?