[G4] MDD L2, L3 cache switch off at startup. Does it matter?

Eric Wood ewood at izoom.net
Thu Oct 11 13:06:31 PDT 2007


Perhaps it is Apple's CPU preference pane that's installed with the CHUD
tools, which in turn come from the free Developer Tools? I know that
that offers cache control. All you need to do for that is sign up for a
free Apple Developer Account and you can download the latest Xcode and
such.

As for the cache turning off after a reboot again, sounds like that
Mac's firmware doesn't quite like the newer CPU. Might be an update to
fix that - who knows?

Eric

On Thu, 2007-10-11 at 15:36 -0400, Charles Schneider wrote:
> Dave,
> 
>    You say you have a Hardware section in the system preferences, I  
> do not have this.  Is your hardware pane in the section labeled  
> 'Other'.  This would imply it is a non-apple pref pane.  This is why  
> I believe your computer may have an upgraded processor from a third  
> party vendor.  You would probably have to contact the third party  
> vendor and ask them
> 
> 
> Charlie
> 
> 
> On Oct 11, 2007, at 11:58 AM, dkmnow wrote:
> 
> >
> >
> > Okay.  My Boot ROM reads the same, and from what I
> > could gather from Apple, that appears to be the latest
> > version.
> >
> > The only place I know of where you can select either
> > the default values (from the specifications) for L2
> > and L3, or to "none," is in the Hardware section of
> > the System Preferences.  But as I said, whenever I
> > have tried to set them to "256KB" and "1MB,"
> > respectively, they simply reset to "none" at the next
> > bootup.
> >
> > I have no idea why, but I'm under the impression that
> > this is not supposed to happen.
> >
> > Dave
> >
> >
> >
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