Well, i switched from 2x512 Corsair VS512 (2.5-3-3) to 2x1G Kingston KVR400X64C3A/1G which according to kingston has (3-3-3) latency. Now cpuz is giving 4-4-4, at 2T, altho the channel is Dual. Any idea why the latency is different? And is there any way i can get from 2T to 1T?  
 
Note, that my mobo (MSI k8n neo-4 platinum, supports 2.5V DDR rams, and the kingston is 2.6v and it's working atm. Will this have any bad affect in the longrun> or its just fine.

hmm, no replies.....
 
Well, i did go from 200 core clock to 133 core clock, and did go from 4-4-8 to 3-3-6 ... and all was stable

Even at rated/ stock rated, you could try running MemTest86+ for several hours to see if it's really stable..

will do and post here Thx.