Question about ram frequencies.

[Burky]

So I have my new ram, and I'm very impressed with the increased benchmarks, but now has been my first time overclocking ram and I came to a sad realisaton.

 

Due to the ceiling function on the bottom of the equation:

 

Core speed / ] multi x ratio [

 

This means that the number on the bottom must be integral.

This leaves my only two choices for my ram speed as either

2650/9 = 294mhz (9:10 divider)

or

2650/10 = 265mhz (1:1)

 

Now my cpu is stuck fast at 2.655ghz, to get to 2.7ghz require more than 0.05v more which just isn't worth it in my book. So therefore I cannot get my ram any higher.

 

So this leaves me with the choice either 294 or 265.

I tried 294, and it just won't boot, and I went up to 2.8v and it still wouldn't.

So I have settled for 265mhz, but this seems a little lower than I would like them to be. Iwas hoping for like 280mhz like I hear other people have achieved.

 

Is the best thing I can do now just to compensate for the slower than desired sspeed by tightening up the timings?

[Reimannian]

Have you read the sticky on loose/tight timings/dividers? It doesn't really matter much.

[Burky]

Yeh that's why I was wanting to compensate for the loss of memory.

Still I hear that running a 1:1 divider is best of all.

[Reimannian]

Sure it's the best, but the figures show it's insignificant in the real world.

[madu]

WHy dont you raise the fsb and then put the cpu on a lower multi..

Just curios, shouldnt the 9/10 divider bring down the mem freq?

[Guest FZ1]

S

This means that the number on the bottom must be integral.

This leaves my only two choices for my ram speed as either

2650/9 = 294mhz (9:10 divider)

or

2650/10 = 265mhz (1:1)

 

Wait a sec, I think you have something wrong here. If you are running 9x295 you are hitting 2655Mhz on your CPU. With a RAM divider of 9:10 (=1.11111) your RAM speed would be 265.5 because:

 

2655/ 9(1.1111) = 2655/10 (round up!) = 265.5

 

OK, now that I look at this I guess you have your setup incorrectly entered...I think you meant to type:

 

2650/9 = 294mhz (1:1)

or

2650/10 = 265mhz (9:10 divider)

 

If so, stick with the 265! Those Gskills won't all hit near 300 - most find the sweet spot between 265-275.