Tell me more about Ram timings.

chimdogger · Post by **chimdogger** » Wed Jun 25, 2003 12:50 pm

I have read several posts about ram timings and I cannot grasp the concept. I understand it involves oc'ing but what does it really mean. 6-2-2-2??? I went through my bios setup throughly and cannot find anything that is 6-2-2-2 for memory sticks. Any explaination is appreciated.

Thanks

Chim

The Goog · Post by **The Goog** » Wed Jun 25, 2003 12:53 pm

Most likely you will find it under advanced chipset features after you set spd to manual.

Cas Latency = 2
Ras Precharge (Trp) = 2
Ras to Cas Delay (Trcd) = 2
Ras Active to Precharge (Tras) = 6

Brent · Post by **Brent** » Wed Jun 25, 2003 12:55 pm

refresh times for memory cycles

the lower number = faster refresh = faster performance

CAS
Active to Precharge
RAS to CAS
RAS Precharge

thats the typical order

/edit - the goog posted it while i was posting

The Goog · Post by **The Goog** » Wed Jun 25, 2003 1:02 pm

lol

chimdogger · Post by **chimdogger** » Wed Jun 25, 2003 1:25 pm

So tell me this. Is there a certain value I should set for my particular ram, motherboard and cpu? Do I set the values by trial and error? I am sorry for all the questions but I am a OC newb.

Thanks again

Chim

The Goog · Post by **The Goog** » Wed Jun 25, 2003 1:28 pm

Well Corsair recommends timings of 2-3-2-6 if you use the 3200LL modules. The Ras to Cas remains a 3.

Brent · Post by **Brent** » Wed Jun 25, 2003 1:32 pm

if you are not overclocking your memory bus then you should be able to use the fastest timmings your mobo allows

so set them all to the lowest number and see what happens

don't forget to take before and after benchmarks to see if there was any increase in memory bandwidth, use sandra and aida for that

just noticed your sig, even if it is oc'd you should still be able to run with fastest timmings, you have good ram there, it'll take it, i run the same stuff on my canterwood setup

but most of the time yes, its trial and error

Jstyr · Post by **Jstyr** » Wed Jun 25, 2003 7:17 pm

Hey Chimdogger..check out this presentation on Corsair's website. It's goes through timings as well as how the memory bus interacts with the chipset...very informative.

http://www.corsairmicro.com/memory_basi ... index.html

Freddy · Post by **Freddy** » Wed Jun 25, 2003 9:19 pm

Hey chim, I understand that you may wanna experiment with these settings but truthfully (based on my experience), I would say DONT mess with CAS Latency, for thatz critical enough that it may prevent you're computer from gettin 2 bios...

One time i changed my ram timing from 3 to 2 and it was ruined for good (my comp. didn't get to bios screen n e more; it froze every time). The only way for me 2 fix it was by buying a ram with the cas latency timing of 2 that i set it 2.

Just something 2 take into consideration...

-Fred