Help with memory timings

[railfrog]

What do the different memory timings mean...

4-4-4-12

5-5-5-18

Thanks

[KarmaKiller]

Basically the latency on your RAM.
I.E., how fast it communicates in between the different RAM banks, in between different sticks, etc.
The lower the number, the faster it's going.

[railfrog]

Thanks

So it's a case of the lower the better.

Do these timings get changed when overclocking?

[KarmaKiller]

Well, that depends on if you change them yourself, or leave the board to [auto]

Generally, more Mhz is better then tighter timings..