Ceramique, along with a Koolance V1 pot. The chip did 6875 without too much trouble, but wouldn't go to 7ghz. I'm running it again tomorrow, so maybe I'll get lucky and get to 7.
Thanks, I went through 3 of these before I found one that clocked this high. It's too bad I killed it because it could have earned me some nice points in the rest of the 3DMark benchmarks.