Hi having a minor problem and not sure what the issue is. After building my pc when I went to do a test boot with everything except the graphics card I could not get to the bios screeen. Instead my PC was black and in white text said: reboot and select proper boot device or insert boot meida in selected boot device and press a key. I have not installed windows onto it yet but i dont know why the bios would not start up. My mother board is a Gigabyte GA-Z170X-Gaming 5.