The BIOS features for advanced use, such as overclocking:

First, you'll have to set the Overclocking profile to manual, in order to be able to adjust the settings yourself. There are also some pre-set profiles for overclocking.

You can also adjust the FSB speed or Memory speed, both together or separately.

Memory Voltage

CPU Voltage

CPU Voltage

The timings for the memory can also be set manually: