This message was posted on behalf of Intel Corporation
Thank you for contacting the Intel community.
I’m sorry, the Intel® i3-2120 processor is not unlocked processor; so therefore, you will not be able to overclock it because the multipliers will not be available at the BIOS.
Please bear in mind that Intel does not support overclocking, if you need some recommendations about overclocking you can check the following website:
NOTE: This link is being offered for your convenience and should not be viewed as an endorsement by Intel of the content, products, or services offered there.