using a new Gigabyte GA-X99-UD4 motherboard, installed a Crucial SSD as boot drive and running Windows 7 Pro with this. Now that I need to install many more hard drives, cannot do this. All the cables are fine and they are running out of the Sata 3 (0-5) section of the motherboard. One of these runs the DVD drive with no problems. Every now and then I can get one drive to show up under Computer Mgmt, but not regularly. Boot set up is 'Optimized' and there are no RAID things going on. I have messed around endlessly in the CMOS and no matter what selections I make, can't get more than the boot and the DVD. This is a new one to me....what gives????