Well if it is your processor thats locked then theres nothing realy you can do about it mate.Now if you have a stock mobo, for instance when you bought the p.c it already had a mobo then alot of the oc'ing features will be locked and not accesible , but this can be overcome by updating your bios or simply getting a new mobo, if you need any more help then just post mate
If i helped plz rep me up