AMD: Unlock Core easy overclock

amd have feature for unlock core from 2 core (x2) into 4 core (x4) this feature can easy for overclock your system. but not all proc can be unlock stable and we must have mother board with feature acc unlock on bios. below is several proc can be unlock:

1. sempron 140 this procesor can be unlock to x2 440 regor if you lucky you will see this proc can be run at 3.00 ghz stable
2. x2 5000+ this procesor can be unlock into phenom x4 b55 but this procesor is difficult product
3. x3 440 this procesor can be unlock into phenom x4 b40
   
4. phenom x2 555 this procesor can be unlock into phenom x4 b55

for maximal feature unlock the system must be have a minimum specification hard accept motherboard, memory, power supply because with this procesor can be unlock stable. for motherboard we can use a several series from biostar, msi, jetway etc with 785 chipset or above. for now i'm use biostar 785 a2+ with sempron 140 unlock into x2 440