i'm a noob to memory timings

killbydemons

Junior Member
Feb 1, 2008
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My dilemma is that i don't really understand the mechanics of memory timings. My system is as follows...

ASUS A8N 32 SLI Deluxe (socket 939)
2 x 1GB Corsair XMS DDR 400
AMD X2 4400+ (socket 939)

So far as i know, these are the parts that are most directly impacted/reliant on the performance of my memory. Since I have older DDR, i know that my timings are at the lower end of the spectrum. The stock speed of my CPU is 2.2ghz, and i've been able to hit a stable overclock to 2.6ghz. My cpu achieved this clock through a fsb of 237 and a multiplier of 11. But i could not POST during the OC'ing process if I left my RAM at a 1:1 with the FSB. So I had to run the memory at a lower divider, and raise the CAS timing to 2.5 from 2. The current speed and timings of my memory are DDR 434 at 2.5-3-3-6, at 2.75v.

The reason i outlined my OC was to show that I know enough about timings to get a stable CPU overclock using DDR. What i don't know, is how the timings of my memory technically affect their operation. I know that the CAS timing is "important" but that's it, and every other timing value means nothing to me.

So, what do those other timings mean? Could i get a higher memory clock by fiddling with them?
 
Oct 20, 2005
10,978
44
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This should answer any and all your questions about memory timings.


Text

Edit: Though the link was designed for DFI mobos, it should give you a good idea/understanding of what each memory timing does.