Overclocking DRAM Timings

[fultonloyn]

SO just looking for some feed back and adivce.

Right now my Intel i7 920 is at 3.7 ghz @ 1.23v. I know my CPU is stable here and I know it could go farther just havent had time to Prime95 it and whatnot.

However, I have more questions about getting my RAM timings down. I know the lower is generally better and honestly...thats about it.

This is what I have right now.: 6gb Kingston HyperX 2000mhz CPU-z says my timings are 10-10-10-27 at 1T. My FSBRAM is 2:8, My NB frequency is 2882.8, and my DRAM freq is 720.7. (set to match my 180 BCLK)

Thanks for all advice in advance!

 

[lowjack989]

So ok if you are at 10-10-10-27-1T @ 1441.4 MHz ...Your running 2000 Mhz RAM with loose timings i.e. CAS 10. So knowing this I would assume that the DIMMs you have are CAS 10 .... 2000 Mhz. I would just bump the memory clock up to 2000 MHz. If your using a multiplier to set RAM clocks it would be 11 x 180 = 1980 MHz..Just leave the timings alone. Otherwise you could slowly tighten the latencies at the current clock speed such as : 9-9-9-24-1T, 8-9-8-22-1T, etc... The lower the timings the more responsive the DIMM's will be. Take notes with a logbook on what works and what doesn't and be prepared to reset the CMOS a lot

 

[fultonloyn]

Thanks for the response. My CAS is actually 9.

Here is the link: http://www.newegg.com/Product/Product.aspx?Item=N82E16820104274

So should i just raise the mem speed to 2000 mhz then manually set the timings down to the 9-9-9-27?

 

[lowjack989]

Yeah thats what I would do..Oh hell, that is CAS 9 @ 1866 MHz RAM..Its not 2000 MHz CAS 9

 

[fultonloyn]

Cool. This is what I am at now:

NB Freq:3645.3
DRAM Freq: 911.2
FSB: Dram 2:10

9-9-9-24 1T

Better? haha

 

[lowjack989]

Yeah thats much better your at 1822.4 MHz with CAS 9..Do you see the difference?

 

[fultonloyn]

yeah for sure. Thanks for the help. last question in the CPU tab of CPUZ, the bottom right Cache box read 8-4-8-16. Is this the same thing? As in i could bring my timings down even lower?

 

[lowjack989]

Check the SPD for the timing profile for your DIMMs...8-4-8-16 is not gonna work I assure you. I have yet to see a latency of 4 for any DDR3 especially at 1800 MHz

 

[fultonloyn]

Thats what I was going to say! thanks for the help. Happy Gaming!

 

[fultonloyn]

Best answer selected by fultonloyn.