The BIOS controls as much of the overclocking process as the CPU does, and many motherboards do not allow this.
You did not specify the BIOS or the manufacturer of the computer, but if the computer is a "Big box" brand like Dell the chances that it will support overclocking in the BIOS is pretty close to zero.
If you have looked through the BIOS and the options are not there, then the system will not support overclocking. This is often the case in any budget oriented computer.
EDIT
Now that we have your model of system and CPU:
Don't ever expect a consumer and low-level machine to offer over clocking options. It costs more for the manufacturer to both build and support.
With that Intel CPU, Intel designates CPUs that can be over clocked with the K designator.
Your CPU model, i3-3110m does not have the K.