Thanks guys. It sounds like if I guess wrong, it's a crap shoot. Can't imagine it is too big a risk if I stick with the manufacturers that have other products certified.
I sort of understand latency, which both of saint's choices have considerably better figures. I guess I am not clear on how the speed of the memory works. The G-Skill is DDR3 1600, and the Patriot is DDR3 2000. Will the extra speed translate into better performance?
The important for select a RAM isn't only the speed u also need keep in mind the CL (timings) and voltage of the RAM (1.65V max. for DDR3).
With a lower CL u get better performance. Take a look of this two articles:
1- Cas Latency CL
2- Memory timings