Hi. The NCQ is already set to 0 in Windows 7 registry but when I use AHCI through the BIOS, it says "error loading the operating system" and would not boot until you bring back the BIOS from AHCI to the normal IDE. You can get AHCI capabilites by pressing F6 and a floppy (or CD/DVD if you're using a USB to set it up) and installing the AHCI drivers before you install Windows 7 64-bit but how do you install it after you've installed Windows 7 64-bit? Should I boot from Windows 7 setup again and install the drivers from there or would that mess up my Windows 7? Also Intel has AHCI drivers, as well as Gigabytes GA-965P-DS3 rev. 1.0 (It's named as: GIGABYTE SATA2 Preinstall driver for AHCI / RAID Mode then they have a separate driver for just Raid named: GIGABYTE SATA2 RAID Driver). Which one do I use? Intel has these: Gigabytes has these: TXTSETUP xraid_f iaahci txtsetup iastor jraid.sys iaAHCI jraid iaStor iaStor.sys F6Readme license Thanks in advance. God bless.