As found on Slashdot thus all credit goes to them:
Overclocking Your iBook to 600Mhz
Posted by timothy on 12:24 08 October 2001
from the clashing-paradigms dept.
Cryptnotic writes: "The guys at Accelerate Your Mac have figured out how to modify the motherboard on the recent Apple iBooks to get them to run at 600MHz with a 100MHz bus speed. There are benchmarks comparing the OC'd iBook to some regular Apple desktop machines. However, what I am wondering most is how this overclocked G3 compares to the much more expensive Apple G4 Powerbook and if it makes it worth voiding the warranty." Remember, not recommended for your iBook.