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Overclocked ram & Why 1:1? - Page 9

post #81 of 88
Quote:
Are you for real? The FSB has nothing to do with performance just because it has been multiplied by 4? If I multiply all the FSB by 100,000,000, it will still tell us about performance, because they have all been multiplied by a constant.
Some people just don't want to see the light Paul...
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post #82 of 88
Quote:
Originally Posted by Ihatethedukes View Post
Alright Choggs do me ONE favor and test your own hypothesis according to this.

7

6*500=3000 @ 1:1 DDR1000
8.06MB/s/MHz * 1000MHz = 8060MB/s

9*333=3000 @ 3:2 DDR999
6.29MB/s/MHz * 999 = 6284MB/s

You should get near those numbers if what you're saying is true. Or, at least, in a 1.28/1 ratio to one another. If it's GREATER than 1.28/1 better at 1:1 then you can blame it on the extra FSB and your theory MIGHT be/is likely true. If it is equal to 1.28/1 better on the 1:1 then you're likely right. If it is less then 1.28/1 better then you're 100% wrong as the extra FSB only serves to HELP the 1:1 look faster than the other and still falls short.

The ONLY way for you to REALLY test your idea is on an unlinked 680i chipset, and even then, that does away the very divider you're trying to test... which really means that there is NO WAY to test your hypothesis and you're now just philosophizing about ram speed, which is about as useless as a $3 bill.
This proves that Choggs simply cannot even TEST his hypothesis let alone prove it. It's similar to String Theory, which is really a misnomer because as of now they cannot test String Theory in order to validate it and make it a theory. People have called it Philosophy instead of science because of it.

What I don't think he realizes is the REAL significance of his efficiency calculations. It's REALLY more suggestive of the FSB playing a BIG role in RAM efficiency. It makes sense that as you approach the limits of something (a bus in this case) you begin to get diminishing returns. Just like as you add energy to something to speed it up it begins to take more and more energy (frequency in ram) to go faster (real ram throughput). So, it makes sense to fill as little of the bus as possible for a given ram speed.

Basically he doesn't know it, but he's just advocating high FSB.
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post #83 of 88
Final tweak to my system today, bumping my memory up a bit. By the way, THANK YOU PAULDOVI-- Rep+ for encouraging me to break my 1:1.

Summary:

E4300 @ 334x9 (3.0GHz)
G.Skill DDR2 667 (PC2 5400) 4-4-4-12 @ 836MHz (PC2 6400+) 4-4-4-12

I decided to try the higher clock on the memory, even though it would break my 1:1. I now have 4:5 ratio and I am pretty content with this.

Furthermore, I am beginning to seriously question any "ill, bad, or otherwise negative" effects of breaking the 1:1 cpu/fsb link. I'll further categorize any claims of the 1:1 benefit under myths, legends, and beliefs.

But...any reason to worry about the Trc going up to 20?

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post #84 of 88
Im amazed you got trc 14 at all. My 965 board has a hard time hitting anything below 20 with all different types of RAM.
post #85 of 88
Quote:
Originally Posted by CL3P20 View Post
Im amazed you got trc 14 at all. My 965 board has a hard time hitting anything below 20 with all different types of RAM.
The middle window shows what the RAM is rated at. The window on the right shows what it's running at. So, while I have a decent overclock on this "budget" memory, my Trc is at 20, even though I have it at 4-4-4-12.
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post #86 of 88
Quote:
Originally Posted by pauldovi View Post
Please read my guide:

Intel Memory Guide
I've read the guide, but how come it says go for 1:1, when in this thread you are saying just get everything as high as you can?
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post #87 of 88
charger asked me to run some tests this morning with different dividers. I didn't spend a lot of time on the timings but the results were interesting.
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Ram
800 4 4 4 6 1t 1:1 7850mbps 15,969
960 4 4 4 6 1t 5:6 8000mbps 15,981
1066 5 5 5 15 2t 3:4 7950mbps 16,054
1200 5 5 5 12 2t 2:3 8050mbps 15,945
Cpu @ 3.6 9x400 for all runs
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post #88 of 88
i think i found an easy way to illustrate Paul's point. maybe not, but it seems to prove his point to me anyway. i just converted a bunch of MP3 files to WMAs using Windows Media Converter with my task manager open and saw that my CPU was only running at 65%. that must be due to a bottleneck caused by my memory, otherwise my CPU would run at 100%. i'm running a 1:1 ratio. i suppose i could lower my CPU clocks to achieve a 1:2 ratio and do the same file conversion, but i don't really care enough to go to the trouble. my theory is that my CPU will run at 100% when i find an ideal ratio.
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