I did some more testing today and found my board has no problem sitting stable at 6.0 when idle with EIST enabled and C1E disabled or 9.0 with EIST disabled and C1E disabled. When both C1E and EIST are enabled, then I have to go into the power options to make sure that is set appropriately or else I'll get the dancing multipliers.

Thanks rge for testing that out.

On my old P5B board, the reported MHz are a hair more stable compared to a couple of RC versions ago, especially when running SetFSB. Very accurate as well.