I think the BIOS is already updated, my pc worked yesterday with the same CPU. and i onley plug a HDD drive.
If it was working with that one HDD before. I would try reseating the SATA cable or put it in a different port. Did you make any other hardware changes? Memory? Video Card? Card Reader even. I would unplug the case, reset the bios, and boot up again. Motherboards do not always come with the latest bios so if you didnt update the BIOS yourself, you should look into updating that.