[Ti] what RAM for powerbook G4 550mhz?

[Kynan Shook]

luke <etyrnal at ameritech.net> writes:
> PC133 for sure - the system bus is 100, but mine came from apple w/
> pc133 in it...
> also the 100mhz motherboard iMac i just got has pc133 from the factory
> too...

Actually, it doesn't need PC133.  Apple shipped it with PC133 because 
it's cheaper and easier to only have one speed of RAM installed in all 
shipping PowerBooks.  Also, by the time those models started shipping, 
PC100 was sometimes more expensive than PC133, and often rarer since 
pretty much any computer that needs PC100 can use PC133.  The 100 MHz 
flat panel iMac DOES require PC133 though, for whatever reason.
Of course, don't ask me why the 12" PowerBook is shipped with PC2100 
and not PC2700 DDR since that's what the 17" uses...  Maybe the price 
difference between those is big enough, or they decided that there 
wouldn't be any confusion between the two when service providers are 
replacing parts because they're different form factors.


Kynan Shook
kshook at mac.com
http://homepage.mac.com/kshook/index.html