Referencing these two statements posted above:

Quote Originally Posted by websmile
These are single sided, afaik G.Skill used BCSE
Quote Originally Posted by TaPaKaH
single-sided 2GB and dual-sided 4GB modules use 2Gbit ICs - I guess those should be BCSE.
Would BCSE be a reasonable guess as to what is being used by Corsair in that Dominator 2x4GB 1866 CL9 ver2.12 kit that msimax was testing at 2600+ (the one I linked above)?