Voltage question

http://www.zipzoomfly.com/jsp/ProductDetail.jsp?ProductCode=85025-5

This is the ram I have. The stats say it's tested at 1.9v. Now, does that mean that it is not a good idea to go above that voltage? What would happen if I do go above the recommended voltage of ram? Would I toast it or would it just become unstable?

If you are going to try more than 1.9v i would add some extra cooling blowing onto the memory i would think 2.1v will be ok but before you increase any voltages try and find your max at 1.9v you may not want or need any more.

i had value ram that was 1.9 and i bumped it up to 2.0, 2.05, 2.1, from 1.9 with out problem.
didnt do me much good. I think a small amount would be ok. and like vento1 said extra cooling.