Im building a new pc and its giving me problems but firstly i have two wd raptor 500gbs 6.0s temporarily sitting in another pc to see if they were the problem since my new build is reporting a sata problem. Now they are sitting in a gigabyte 790x-ud4p which i know is a 3.0 board but i just needed to test them, so i installed them and it recognizes them in the bios but when i go to format them they both give me only 20gbs of storage can anyone help me on that?