My quicksilver 867's fans make it sound like a hoover, but my ti 667 is mostly as quiet as a mouse. Heat dissipation is an issue but not necessarily a deciding factor! Alex :-) On Saturday, Jul 26, 2003, at 08:08 Europe/London, S. Moussly wrote: > It takes 9 fans to cool off a G5 chip. Unless apple uses a new > technology to > cool off the G5, such as "smart" heat pipes, I dont think we will see > G5 > Powerbooks anytime soon. > > Sam