I would like to know if I can upgrade Os 10.3.9 to os x 10.5
I have a powerbokk G4
Powerbook G4 is a range of models, I have no idea which one you have: http://en.wikipedia.org/wiki/PowerB...
..anyway response 3 here may be of help:
As I understand it, no PowerBook supported more than 512Mb of RAM or a processor faster than 800MHz. 10.5 crawls on my Mac Mini with 512Mb and a 1.42GHz processor, so I went back to 10.4. Even if the answer is a theoretical "Yes", I wouldn't recommend it.
Umm, from my link 867 MHz or 1 GHz PowerPC G4 with 256 KB backside L2 cache and 1 MB backside L3 cache
2 x 256MB Mem maximum, and concur that OS X 10.4 is the one to go for....