Memory Questions in regards to O/C

Does anyone know of a good guide or post(s) related to how memory is tied into overclocking, how timings work and what they do, how lowering or raising timings effects o/c...etc.

Trying to learn more, and figured what better place to ask.

Start here for DDR2:
http://www.overclock.net/2660680-post1.html

DDR3 isn't likely to be that different.

Essentially, the timings are the number of clocks required to do a given operation.
Cas5 1000mhz ram for instance takes 5 nanoseconds (5 billionths of a second) to do a CAS operation.
So if you're running at 1200 ram speed, you need to set the cas to 6, as six 1200ths of a second happens to be 5 nanoseconds as well.

Some operations take longer then others, and some ram is better at some and worse at others then other ram.

It's worth noting that it's five clock ticks, not five data ticks. Data is sent on both the rising edge of the clock and the falling edge, which is to say twice per clock.
Everything i've found indicates that it's only data and not commands that is sent on the falling edge.

First some basics: higher frequency & lower timings (both primary & secondary) increase ram performance. There is no point beyond which lower timings result in worse performance as long as the ram is stable and functioning correctly. You can see all this for yourself with a few tests in Everest. When you get into how that ties in with overclocking the rest of your system, it's more complicated. Some situations require you to loosen timings in order to achieve the overall OC you're looking for, while others are all about pushing everything to it's limit. If you're fairly new @ looking in the BIOS, the page containing the RAM parameters looks rather complicated...and it is.

My advice would be to read around then do some testing with the primary timings (primary timings are what you see on the memory tab in CPU-Z) and see their effect on system performance. Once you get a feel for those you can take it as far as you want. The main thing is getting familiar with everything, look in the BIOS and play with different settings, then run tests and see what's happening. DO that enough and you'll be answering questions rather than asking.

Bobnova said:

Start here for DDR2:
http://www.overclock.net/2660680-post1.html

DDR3 isn't likely to be that different..

Click to expand...

Good start... then check this link out: http://www.thetechrepository.com/showthread.php?t=160