Option three Geil the question is do you have to run at 2.5v to reach that timing. Also what with using carbon fiber? I wouldn't think it would work all that well.
Its a range 1.9v - 2.5v you should be able to get those timings at those speeds within that range. However, it should be more stable at higher voltage. Can your board not go that high?
I wouldnt think Carbon Fibre would do any good either, maybe marketting gimmick (it can take ammo rounds from a glock and not be hurt?). I was more interested in the fact that its the first part rated at CAS4 on a 2x2gb ive seen.