Hello,

> >Weird - do you have any idea what could be the reason to disable power
> >saving on the 7455? It works nicely with the S900/G3, so I have power
> >saving on the desktop machine but not on the notebook, kind of paradox ;)
> 
> Not yet. Nathan might know. I just started looking into the power save mode
> last night since I was seeing different behavior with the fan after
> applying the newest extintr.c file with the PSL_EE enabled before lowering
> spl in Idle(). The 604 appears to require different handling for true power
> savings, and I haven't put all the pieces together with regard to CPUs with
> HID0.

Hmm, it can't be a bug in all the 7455s (like the on-die thermal sensor), MacOS gets power saving right ( the iBook does cool down ) and I highly doubt that Apple would use chips with broken power saving in /notebooks/. So I guess the 745x just need special handling too.

have fun
Michael