To answer you, no that is incorrect you can run 4x1 or 2x2 at 1066 for sure. Here is a Quick test I did a while ago at 1200 with 4x1 Crucial >>>
http://forums.tweaktown.com/f69/reco...45-ud3r-29084/

And yes those would have all been fine at 2.2V+ likely, I just could not be the one to suggest that to you since you could easily RMA them to match up