|OEM computers should not be overclocked. These systems do not stand up well to the stresses of overclocking so the manufacturer does not include the necessary BIOS settings to do this. This protects you from failures and them from the resulting warranty claims. While it may be possible to overclock such systems the results are rarely satisfactory and the risks high.|
Overclocking is best done with home-built systems where you can control the specifications and quality of components.