Mine does 6-7-6-18 @1600 at 1.56V on P55 platform, but no post on AMD platform.
1800 7-8-7-21-1T memtest stable on ASUS M4A89GTD PRO.
2104 8-9-8-24-1T 1.56V max validation on Intel P55 Platform, 2048 8-9-8-24-1T 1.56V can do Superpi 1M.
http://valid.canardpc.com/show_oc.php?id=1242963
The ECOs performs best on 1.55V, it becomes unstable after this voltage, I tried it on 4 mobos and the results are the same.