"Why my iBook G3 counldn't boot the CD?" için yanıtIf you're trying to install anything higher than Mac OS X 10.4 (ie 10.5, 10.6, or 10.7) it wont take it. Anything higher than 10.4 requires an Intel processor and the G3 has a PowerPC processor.
"Why do I have a flashing question mark on monitor?" için yanıtMeans your startup system can't find anywhere to load an OS from... did you mess with anything else while you were changing your RAM?