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How to Set Ram to 1:1 Divider

post #1 of 5
Thread Starter 
Hi I recently put together my C2D computer together and everything works great but CPU Z shows that my memory is running on a 4:5 divider. I wanted to ask you guys with the same mobo I have how to change to a 1:1 divider. Mobo and ram is in my system specs. Thanks and I hope you guys can help me.

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post #2 of 5
Quote:
Originally Posted by SPIK3 View Post
Hi I recently put together my C2D computer together and everything works great but CPU Z shows that my memory is running on a 4:5 divider. I wanted to ask you guys with the same mobo I have how to change to a 1:1 divider. Mobo and ram is in my system specs. Thanks and I hope you guys can help me.

Just go into BIOS and keep your CPU base clock (clock before multiplier) equal to your RAM clock (long-story short: half of your advertised RAM clock on DDR).

ie. you have DDR 667 your core mem clock 333.5mhz
Unless you are underclocking your RAM, you will need your cpu at 333mhz too (I believe the multi on a 6300 is 7?) putting you at 2.33ghz (unless you lower multi). 2.33ghz is a pretty easy OC on a 6300 and I doubt you would even have to change your voltages for that. Because you arn't going exactly 333.5 and because of fluxuations, cpuz might say it is 7:8 or something, but it is essentially 1:1 and you wouldn't notice the differenece otherwise.


EDIT: Some BIOSes might have an option to set the ratio to 1:1, but that will result in underclocking to 1:1, not overclocking and it would reduce performance.

There are other, more experienced users here who may give more sound advise if you want to stick around to hear their replies, but as far as I know, my advise is accurate. Correct me if I'm wrong.
*waits for Chozart to smack me upside the head*
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post #3 of 5
Thread Starter 
Ok so in therms of performance will it make any difference changing it or is my memory already runnning at peak performance without overclocking??
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post #4 of 5
Quote:
Originally Posted by SPIK3 View Post
Ok so in therms of performance will it make any difference changing it or is my memory already runnning at peak performance without overclocking??
Based on CPUZ, your memory is running at stock speeds and is being bottlenecked by your processor. Often times, overclocking memory yields little performance increase when compared to a processor overclock. The method I suggested will overclock your CPU to match your RAM at a 1:1 ratio. This should yield a significant performance increase.
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post #5 of 5
Quote:
Based on CPUZ, your memory is running at stock speeds and is being bottlenecked by your processor. Often times, overclocking memory yields little performance increase when compared to a processor overclock. The method I suggested will overclock your CPU to match your RAM at a 1:1 ratio. This should yield a significant performance increase.
Now, how can running the memory at a higher frequency than the CPU's or at "stock" speeds be a bottleneck by the processor?
"Significant" performance increase on a 1:1 over 4:5? I don't think so.



SPIK3; You can easily change the ratio in the BIOS, check in the "Northbridge Chipset Configuration", there you should change them to 4-4-4-12 and for a 1:1 ratio, go to the "Jumper Free Configuration" and there you can set the AITuniq to "manual" and after that, set the CPU Frequency to 300 (to start with) and then the DRAM Frequency should read DDR2 600. That's how you'll be able to achieve a 1:1 ratio.

Now, remember that for a 1:1 ratio, when the CPU is at...let's say 266, the ram should read DDR2 533, just sort of double up the speed of the RAM from the CPU's frequency.

Timings should always be 4-4-4-12 with a minimum of 2.1v or 2.2v for maximum stability on a 1:1 ratio.
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