For people who want to unlock cores on their phenom II X3's or their phenom II X2's (commonly the X3 720 and the X2 550). Here's a great guide I found for unlocking cores!
http/www.overclock.net/amd-cpus/535501-amd-phenom-ii-core-unlocking-guide.html
http/www.overclock.net/amd-cpus/535501-amd-phenom-ii-core-unlocking-guide.html