Again, I maintain you do not know enough about this. If you did you would not be trying to use CPU-Z as an OC tool or asking how to OC in the OS. Please read up on this matter. The Phenom 1 had low results on OCing period. Some people had decent luck in the OCing dept with those chips but it wasnt for all Phenom 1 processor. Vista has nothing to do with your OCing only the bios can really do this, any program that does this for you is adjusting values of your bios. Most of your pre-fab PCs from manufacturers such as yours do not allow you to change bios clocks! A program must be used for this. Again these programs are plentiful and easily obtained..... Two of which are Clockgen or setfsb_2_2_120_89. When you think you have done a good job check your OC with Prime95 and or OCCT.