Go through each section of the bios one at a time until you find your ide settings. On some boards, it's in the chipset section or is listed in the northbridge or southbridge section (can't remember which). If you want to change to achi mode (instead of native ide) with your current windows installation, you can follow this procedure http://www.ocztechnologyforum.com/forum/showthread.php?73355-Change-from-IDE-to-AHCI-after-Installation. AMD boards may not support trim; never quite figured out the limitations of amd achi drivers.