Let me start by telling you this, if you lower your latency values you will hardly see any performance benefit while doing common stuff with your pc. If this is supported by a good amount of cpu oc, then you will see a gain in video encoding/decoding precesses. Games will generate the same fps though as before. However, you will find a significant rise in benchmark scores, specially memory benches (latency value).
That being said, get the following softwares from net, they are free. CPUZ, MAXMEM preview, prime95 and coretemp.
First run cpuz and find out if the ram is running at 1600MHz or not (from the memory tab) because they have a tendency to run at 1333MHz by default. If not, then go to bios memory speed setting and manually input/select 1600MHz. Now open advanced memory setting/timings in bios and try these values CL-8 tRCD-8 tRP-8 (all of these default at 9) tRAS-24 CR-1T. press F10 to save and restart pc. If it boots up, then run prime95 and start blend test to see if the threads run ok. If any of the threads stop or pc crashes then the oc is not stable. In such a case try to keep the tRCD at 9 and CR at 2T in that order. If everything runs fine then you can push for even tighter timings by lower the cas values one step at a time. If you are a beginner then I would advice against that because that step might require a push in dram voltage. Luckily for you, your ram is rated at only 1.5V so you have quite a bit headroom there, but you might not be mentally prepared to alter voltage settings at the very first go.Edited by leopold1985 - 3/22/11 at 8:06am