I bought a Samsung 840 SSD (120GB) for my gigabyte GA-770T-USB3 motherboard. I am unable to install win 7 64bit on it. It is a SATA SSD. I have tried ACHD mode in the BIOS, I have tried IDE mode. The drive works as I have tested it as an external drive on other computers. I bought the drive specifically to be used as a primary drive. My regular hard drives work fine on the motherboard.