Quote Originally Posted by iadstudio View Post
I used to have the exact same memory configuration as you, had about the same results. Actually comfortably got to 555 @ 2.19v and ran trouble free for 2 weeks and then the new revisions started to give me errors.
I have a very similar issue. My new single sided revision ran fine at 1133 w/ 2.25v's for a week then started giving me blue screens all over the place, and tons of errors in memtest at rated speeds as well as at DDR-800 speeds.