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RAM running 2:3 want 1:1, help please! - Page 3

post #21 of 61
Prime95 is mainly used as a stress test program. Use something like the Sandra RAM tests, maybe a gaming benchmark or two if you game (3dMarkXX and Aquamark3, for example), and perhaps the Folding@Home application. Basically, run benchmark programs that are similar to things you normally use your computer for (as, for example, gaming performance is really irrelevant for a non-gamer).
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post #22 of 61
Quote:
Originally Posted by Ropey
You should use 1:1 timings. There is no scientific proof that shows running the ram faster than the processing stream subsystem brings any increase in the subsystem.

All we have here are opinions. This is my opinion. Make your choice on how to run your ram but don't look to these other opinions as more or less informed/uninformed. Some people have a better grounding in physics therefore will question the 2:3 as better bandwidth vs 1:1 as the physics do not make sense. Pure numbers, well yes it might seem that 400MHz DDR2 (at the same latencies) would be slower than 533 on an 800MHz subsystem but it is not the case (again, in my opinion).

R
I am strongly with Ropey on this one. Memory communicate with your processor, why would your memory talking faster than you processor can listen help at all? Also, if you make your memory 2:1 with your FSB, then you are going to have to loosen up your timings, decreasing performance.

From: Geil USA

Quote:
3. Memory

Data are read and transferred in and out of memory modules all the time. Faster transfer rate simply means more efficient data flow could be adopted under larger bandwidth. Just like the network bandwidth, larger bandwidth means faster data flow and less lag. To achieve best performance, CPU and memory modules must run at the same FSB (Front Side Bus) frequency. In order for memory modules to run at 1:1 ratio to the CPU’s operating FSB, a fine graded memory module must present.
From: Corsair Memory

Quote:
Corsair Memory today announced that the latest XMS2-5400UL is the first true ultra low latency memory to reach the DDR2-1066 milestone. Using the new XMS2 5400UL memory modules, Wesley Fink at Anandtech successfully overclocked the memory to deliver 1:1 CPU:RAM synchronicity. Prior to the Corsair 5400UL, no other DDR2 memory was capable of surpassing the 1GHz barrier. At the 1:1 ratio, system performance is at its best and potential bandwidth bottlenecks removed.
Seems like the memory companies agree... 1:1 is the best ratio.
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post #23 of 61
All these dividers.. If you have the speed on your RAM why not lower the CPU multiplier and rasie the FSB ? Would that not be the mpst efficent way to run your memory ?
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post #24 of 61
Quote:
Originally Posted by Dr_Fil
All these dividers.. If you have the speed on your RAM why not lower the CPU multiplier and rasie the FSB ? Would that not be the mpst efficent way to run your memory ?
It is easier said than done... First you need a unlocked CPU, and then you lowering the multiplier and raising the FSB puts more stress on the computer.
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post #25 of 61
Im pretty sure that you can't change the multiplyer on Intel Processors... i think only on AMD
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post #26 of 61
Quote:
Originally Posted by SiPex
Im pretty sure that you can't change the multiplyer on Intel Processors... i think only on AMD
I'm pretty sure you can.

All ES, EE, and certain 5XX and 6XX models have unlocked multipliers.
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post #27 of 61
How do i change my divider, im stuck?? i have a asus p5n32 sli deluxe with the latest bios, its got great overclocking features for everything else but there is nothing for the divider, does anyone know
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post #28 of 61
Quote:
Originally Posted by Olly
How do i change my divider, im stuck?? i have a asus p5n32 sli deluxe with the latest bios, its got great overclocking features for everything else but there is nothing for the divider, does anyone know
A plain 630 cannot have its divider changed.
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post #29 of 61
Quote:
Originally Posted by pauldovi
A plain 630 cannot have its divider changed.
On a supported mobo, a 630 should be able to run at 14x, but that's the only multiplier other than stock that it can run at.
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post #30 of 61
Quote:
Originally Posted by Taeric
On a supported mobo, a 630 should be able to run at 14x, but that's the only multiplier other than stock that it can run at.
Opps I said divider, but I ment multiplier...
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