I did this mod a couple of years ago with some success. The additional heat/voltage eventually fried the logic board. I was able to boost it to 1.3GHz for short spans but it ran reliably at 1.13GHz. The voltage mod is particularly hairy.

Check out my old thread for a play-by-play:
http://www.macmod.com/component/option,com_smf/Itemid,222/topic,128.0

Unforutnately, it looks like the images got lost during MacMod's forum-engine transition.


Edited by (11/16/06 11:43 AM)