Oh crumb. Apparently, I have one of the few Powerbooks which shipped with one of the original Pentium chips rather than the G4: pb17:~ scott$ sysctl hw.cpufrequency hw.cpufrequency: 1499999994 Darn FPU units. :) On Jan 5, 2005, at 01:49, Simon Forster wrote: > Anyone shed any light on Jerry's reply (presumably posted on > mac-wizards originally)? I've just tested my PowerBook G4 which should > be running at circa 867 MHZ - but it's reported to be running at 533 > MHz. A quick test of a couple of other machines returns results as I'd > expect - i.e. in line with their spec. > > And yes, I've checked that it's set to run at "highest" performance in > the energy saver control panel. > > > On 4 Jan 2005, at 22:09, CP wrote: > > <all cut> > > >> Jerry Levinson wrote: >> >> >>> 24fun.com tells you how fast your browser is running, not what your >>> original question was. Try this: open Terminal and type in >>> >>> sysctl hw.cpufrequency >>> -- Scott