Icreasing the CAS, increasing the memory speed

[Zyon]

When one drops the CAS latency from 2.5 to 3, how much of a memory speed can one expect as a potential increase. on average. i know that all kinds of memory are different, and one can expect different results.

I have generic ram, branded bt-5. I find i can do 2.5 / 235mhz (ie. ddr470). but i cant do 3.0/250.

is this normal? it is at 2.7v. Which other latency settings could i drop to get the memory fsb up? I'm limited to 2.8v max because of my board. system in sig.

and btw, CPU-z reports, at its current speed (208.3), that CAS is 3.0, when it is set to 2.5 in the bios :confused:

[Flak Monkey]

It's better to keep the tighter timings than to increase the cas to something like 3. You should just put up a divider so that you can keep your ram at near it's max without exceeding and let the fsb and cpu soar.

[cirthix]

watch out, it may not even boot if its winbond chips

[Zyon]

well, after trying for 2.5-3-3-11, 250, 1T, @ 2.8v, i got a cmos checksum error. and it wouldnt fix. out of chance eventually, it booted.

I was using a 333 divider to make the ram @ 208, 2.5-3-3-11, 1T. But i want to try and get 1:1. it is cheapie bt-5 ram (well thats what the last digits are).

though all i want, no matter what latency, is 1:1 (ie. 250mhz memory). even with slow timings. but doesnt like to boot with memory speed set to 400mhz.