This is an interesting question. Could you bring up the apple system profiler and look? Do you run OS 9 and X on it? Do they both report 333? I have seen profilers that are not correct a lot like tech tool being incorrect. Also so botched/warez OS betas back in the day still linger on hard drives and like my Lombard that reported only 33 MHz when it was fast as all get out was funny. The guy somehow with a PC formatted the drive and put OS 9 on it. I will say I was impressed as it was really just blind luck as he could not repeat it for me.