Hey......I was able to get my locked 2500 barton up to 11x236 = 2596 mhz. I have Mushkin PC3200 Special 222 running at 3.3 volts on my DFI LP Ultra B mobo. I was continuing to increase the fsb......Unfortunately I was only going by Prime 95 at the time & I tried some other programs which resulted in crashing.....Still "fidging" with the settings to see whats stable. Even though it's Prime stable, does not appear to be game stable (i.e. Futuremark benchmarks & actual games.)
Right now I found it stable (prime, games, & benchmarks) at 230x11 = 2530 mhz. I can't remember the stepping, but I know it is locked......I don't really feel like ripping it apart to find out what the stepping is (have done to much of that lately)
-ºb§