I really don't think vDIMM helps these kits much.

Myself & how many of you now have posted that vDIMM does not really improve results at all.

I tried various different straps & ratios, it didn't affect maximum speeds much at all either, & we've got all kinds of different mobos & chipset users all reporting pretty much hitting walls.

I also found loosening from 5-5-5 to 6-6-6 does pretty much nothing also.

It really seems most of these hit a brick wall around 1180-1220 range, & no amount of vDIMM or loosening timings helps.

I think the uber high binned stuff came out initially, & now we're stuck with a lot of lesser binned kits.
Pretty obvious binning is very tight, no question.

Honestly, the ProMOS in the G.Skill 1200 kits is far superior to this Elpida unless you hate vDIMM, as it actually scales with vDIMM & can do much better speeds than these LV OCZs can...