i have corsair xms and i think my mem timings are set to 2-5-3-2. For the gat settings set it to auto auto disabled disabled. from top to bottom. your strap settings are found on the same page as your gat settings in the bios.
here is a good site for reading up on ocing
http://forum.abit-usa.com/forumdisplay.php?forumid=36