Spec Faking

2GB of RAM is better than 1GB of RAM.
1.67Ghz processor is better than 1.5gHz processor.

What anything says on the system profiler is correct, so you have actually received the laptop that should have been sold for a more expensive price.

 

Hi, the Hi-res models, respectfully A1138 and A1139 are ALL 1.67 PowerPC G4 7441A or B processors, plus they have dual layer burn support. Yours is not the hi-res if the processor is 1.5. Also, if you go into system profiler check your memory - it should read DDR2 and not DDR. If you have DDR2, then you have the hi-res model.

Hope this helps..

*I own a 17 inch and 15 inch Hi-res A1139, A1138"

 

I suppose it's possible, but it's very unlikely and highly pointless, especially given that you were expecting a lower spec model. You could do a fresh install of OS X, which I would do anyway buying a used computer. If it still says the same thing in system profiler, it's correct, which I would assume it is anyhow.

 

Congratulations! you have received a heigher spec'ed model. There is no 1.5GHz that is Hires. Hires is Model A1138 for 15" and A1139 for 17". And the 2GB RAM is the icing on the cake. I have an A1138 as well as other people here so we should know.

First it uses a faster RAM than the previous 15" model. It is PC4200 DDR2 SDRAM. The screen resolution is up to 1440 x 960, and it has a dual layer super drive. You can check if you got the Hires one, on the bottom of the case it should say the model number as A1138.

 

This would be your best guide regarding the Powerbooks...

http://www.everymac.com/systems/apple/powerbook_g4/index-powerbook-g4.html

 

Likely that the seller did not know the real specs. Congrats on your new PB!