i have this computer AMD Phenom II X3 720m

[redley]

hi. here is my problem
i fon out that i can swish 4 cores on my AMD phenom II X3 720 Pc, but when i put it on 4 cores my scree blinca and the images and video dont open proprly, please help

 

[swifty_morgan]

you have a defective x4/x3.............. not all x3's can have the forth core enabled.

 

[dmmbbs]

You can try a voltage bump to see if it stabilises.