What Peter has said will work fine.
If you want to do the same thing without waiting there are a couple of blue plastic jumpers which you will see below the SATA ports. The one on top (nearest the SATA ports) should be located on the two leftmost pins. If you move it across one pin to the right (so the left pin is now exposed) and keep it there for 5 seconds before moving it back to the original position, it will reset the BIOS.
Obviously make sure you're powered down and unplugged before doing this.
I have the same board which will also be used in my Ubunutu system eventually