Overclocking iBook

The Feb 2003 issue of MacWired Magazine

published an article about speed up you iBook. One of the advanced and
ultimate methods is overclocking the bus and cpu speed.

This article tells how to overclock the 2001 version Dual USB iBook from 500Mhz to
a higher CPU speed and 100Mhz bus speed. However, it requires some resistor ironing
skill because you will be to rearrange the resistors. The best overclocking configuration
for 500Mhz iBook is 600/350, where the first number is the speed of full speed mode
and the latter is battery safing mode. Although the author tested some iBooks that they could
also work under 650Mhz, but the safest is 600Mhz. Moreover, reducing 350Mhz in battery
safing mode from factory default 400Mhz
can make iBook run longer without significant lost in performance. This is because
the increase of bus (I/O and memory) speed to 100Mhz compensate the lost of CPU performance.
Finally, the author concluded and claimed that he had overclocked more than ten
iBooks over 600MHz with almost 100% successful rate.

Overclocking an iBook will of course breach the warranty and is consider as
very risky act. So I am not going to do this on my iBook. May be someday when
I get new Powerbook I will consider to do so.

If you are interested on how to overclock iBook, there is another

site

I found from Google.