Changing the RAM timings stopped the 9xxx error but the CPU meter is still choking. I'm running a session with 5 patches from Structure and 1 patch from Xpand. I figured I'd just give AVID's own plugs a try. CPU meter jumps frantically between 40-55% for such a small session!!!!!! I'm officially frustrated. I followed everything on the i7 thread.
PT9 purrs all day when mixing and takes all the fx plugs I can throw at it. Just for the hell of it I took an old session with 40 audio tracks, put Digi III comp, eq, and chorus on every track, put Eleven on 7 tracks, and also put Waves SSL G Channel on every track. Ran the session glitch free for several minutes on 128 buffer at steady 50% CPU. The virtual instrument session mentioned above is a fraction of this but runs at the same CPU percentage.
It is the virtual instruments that are making my computer feel like a Pentium II and I don't know why!!
Perhaps an i7 930 (awesome processor btw) is not for PT9 and virtual instruments???