why won't my opty do 270x10, 280x10, or 290x10 stable? it BSOD's after a couple of minutes in Prime95, no matter what CPU voltage i select. My mem can do up to let's say DDR630 1:1. Also, i read in this topic a little and found out that a lot of users who want 2900 are using the 9x multi. I also have a lot of problems using 10x multi, but 9x is fine. How come?