> > > > > > >>Factory installed? >> >> > >Yes. > That's where it came from, the factory. It was the additional 128MB that was in my Mother's 800MHz that she ordered online through the Apple Store. > > > >>And would that piece not be compatible in a 600MHz? >> >> > >Yes, it would. Or at least, it should be... > After I first installed that RAM was when the "Fan Episode" began. But even after removing it the 'fan thing' kept on happening....that's why I was wondering if it could have caused any sort of damage.... Fran P.S. I put a new PRAM in this 7300 less than a year ago and it is still doing flaky things occasionally...I zapped it a few weeks ago, maybe she needs it again.... -- Kindness is more important than wisdom, and the recognition of this is the beginning of wisdom. --Theodore Isaac Rubin