If that is your new RAM, then it is a CL6 RAM. The CAS Latency timings are the most important so are mentioned on the cover of most RAM's.
Well, after your last message, I changed from 5 5 5 15 to 6 6 6 18. PC is working fine. Just not sure why in the AUTO mode for the clocks the RAMs won't start. And yes, the Kingston website confirms it's a CL6 RAM. I guess then the only difference in both sticks I have is size or something mundane.
Thanks a ton for your help!!