I must admit that since I have gotten my new 8GB of ram, that I have not tried to OC yet. I will do more testing before I keep blaming my board and report back sometime this week. Also I have noticed in the beta zones, there are some bioses for OCers. I might test the one for my board out and give you the results.
7970 3GB *Unlocked* = 8 Threads
5770 1GB OCed = 2 Threads