Just building a machine using AS Rock 970 Extreme 3 MB but when I connect any device (HDD, SSD, DVD) I cannot enter the system BIOS (UEFI). If I disconnect all the SATA devices I can get into the BIOS, but of course I can't see the drives as they are disconnected. Struggling to see how I can proceed from here, any ideas greatly appreciated, as I'm tearing my hair out. thanks