Update: Got the Dark Knight and installed it. Ran into a problem when I found out the company that built this machine for me had glued to hsf to the cpu; I ranted about it in the CPU forum, so that's another story. Anyway, currently at
2.7ghz ,1.4volts and idling around 26 C. Load goes up to 45 C Max. Unfortunately, I cannot seem to get stable above 2.7ghz. I can run at 2.8ghz, but it crashes out unpredictably regardless of volts, even at low temps. Guess I have to live with what I got. I am very happy that I attained decent temps now at 2.7ghz. It was getting as hot as 61 C with the stock cooler.
Thanks for everyone's input.