How is the multiplier unlocked on an AMD?
Duron and Thunderbird CPUs can be unlocked via a method that has been titled, “The Pencil Trick.” Mainly because, all it requires is a standard pencil. You can find the Overclockers Club guide on how to do the “Pencil Trick” here Athlon XP/MP Processors are a bit more complicated when it comes to unlocking. However, the good folks at HighspeedPC have developed a kit that can be purchased to make unlocking the Athlon XP/MP CPUs much easier. The kit can be found here.