So my ThinkPad has a free slot and I wanted to buy another 4GB stick for dual channel. Knowing that timings matter somewhat more in notebooks I checked cpu-z and it said that timings were 11-11-11 (CL-tRCD-tRP). So I went ahead and got a DDR3-1600 stick with those timings. Haven't put it in yet though.
What confuses me is the nomenclature: If you look up: https://en.wikipedia.org/wiki/DDR3 a DDR3-1600 module with timings 11-11-11 is called DDR3-1600K. Now I don't remember what the Lenovo page said about RAM used but it sure doesn't have a "K" at the end. Then the RAM I bougth was called "CL11". So that refers to CAS latency right? Wikipedia has "CL" as part of the timings and a separate number for CAS latency which is 13 3/4 in case of 11-11-11. What does "CL11" refer to?
Is there something else besides I/O bus clock and timings I have to keep in mind? Does voltage matter? What about Cycle Time and Bank Cycle Time?