ddr400 timings

[Morgoth]

whats the best timings for ddr400 i have it now on 3,4,4,8

[Grings]

good sets tend to be 2-2-2-5-1t

[cdawall]

i can do 2-3-2-5 1T on my CT-5 but my TCCC can only do 2.5-3-2-5 1T it varies from chip to chip just start lowering timings till you find the lowest you can get i could be more help if you said what chips your ram uses

[erocker]

What brand and model are you using?

[AddSub]

2-2-2-x seems to be the norm the for top/tightest timings for DDR400. Although, some DFI motherboards support the CAS 1.5 and CAS 1 timings (such as my DFI RDX200) although you would need top of the line RAM and plenty of voltage to get to those timings. DFI RDX200 also supports RAM voltages of up to 4.0V, so you get the idea.

Also, I see that you have an intel chipset+CPU. I've noticed that tighter timings (CAS specifically) do not bring as much performance increase on Intel platforms as much they do on AMD64 platforms. Intel is much more bandwith hungry.

[sneekypeet]

If you are asking based on OC'ing purposes, isee in your specs you are running 4 stix of ram. This setup will not clock well, also verify in CPU-z that you are still running in dual channel, as some mobos dont support Dual channel with 4 stix in play.

Also judging by the fact that the densities of the ram are different , this will also cause clocking issues (512X2 and 1GBx2 to get ur 3GB of ram).
your timings are great for OCing as they are relaxed and would allow for the best potential OC, but I really think the 4 stix and density difference are really going to crush your hopes and dreams, unless you run a divider, which will leave the ram at stock 200MHz or close to it. If this is what needs to be done I would try to tighten the timings to gain speed once the OC is achieved with the appropriate divider for RAM in place!

[cdawall]

1.5x timings dont take to much i did it on my DDR2100 (oc'd@333mhz) with only 2.85v i got 1.5-2-2-5 1T but that was a single stick of 512mb

[Morgoth]

i am using atm standert moe ram cl3 1gigs 3x1 i'm planing to buy geil cl3 2gb set 2x1gb with ram sink on it and sell my 3 gigs or 1

[Scrizz]

I had some ram that didn't go below 3-3-3-8

[largon]

(...) some DFI motherboards support the CAS 1.5 and CAS 1 timings (such as my DFI RDX200) (...)CAS1.5 on DFI boards is only a tweaked CAS2 and closer to CAS2 than CAS1.5. CAS 1 is broken, it equals CAS2. So, basically the minimum is CAS2. That was confirmed by the DFI's board & bios designer (Oscar Wu).

[mandelore]

the ram i just sold did 630+Mhz @ 3/3/3/7 :)

[AddSub]

i am using atm standert moe ram cl3 1gigs 3x1 i'm planing to buy geil cl3 2gb set 2x1gb with ram sink on it and sell my 3 gigs or 1

I wouldn't worry about timings as much because you are running an Intel platform. I had a measurable and benchmarkable difference when going from CAS 3 to CAS 2.5 and finally CAS 2. But that was on various AMD64 platforms. From my own experience, tighter latencies on Intel machines do not provide the benefits they do on AMD64 platforms.

[Morgoth]

ok thx

[cdawall]

I wouldn't worry about timings as much because you are running an Intel platform. I had a measurable and benchmarkable difference when going from CAS 3 to CAS 2.5 and finally CAS 2. But that was on various AMD64 platforms. From my own experience, tighter latencies on Intel machines do not provide the benefits they do on AMD64 platforms.

it made a diff on my PD with an 865 chipset i went form 2x1gb (DDR400) @ 3-3-3-8 to 3-3-2-6 and it shaved ~2sec off super pi

[sneekypeet]

Ageed even on my 775 if i run CAS 3 instead of CAS 5 my super pi is faster, altho it doesnt get the same results as with an AMD, which would do alot better with the lower latency!