AMD 65nm to use half multipliers + 65w 5200+

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Originally Posted by _damien_

What I meant is that even though there are no half dividers, the half multipliers provide better fine-tuning of the memory/CPU-speeds.

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this is true, i built a friends pc that ran better at 319x8.5 ram @ 301(2711/9) than it did running 300x9 ram @ 300(2700/9)

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Originally Posted by _damien_

I was certainly talking about dividers, and what you replied to nn_step in post #17 doesn't make sense either way. He said that certain 939-mobos provide divider adjustment in increments of one, and you said no (for some reason) :confused:

There are up to 10 dividers available. And how often do you need to run your RAM any slower than (CPU speed) / (CPU multi + 6) ?

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Congradulations, you missed the points of my posts by about a mile.

All I want is to be able to choose a free integer value to determine the ram clock based on CPU frequency (as it is done now, but not limited to certain multipliers). For example if I were running at 2600mhz I would like to use anything from 5x to 25x (full range of supported multipliers) to choose the appropriate ram speed that I require.

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Originally Posted by nn_step

The reason they don't provide FREE RANGE Multis is because the extra logic required for it will SERIOUSLY IMPACT PERFORMANCE AND LATENCY.
We are talking 10-20Million more Transistors and WHOLE nS of LATENCY. Such a design change on the 90 or 65nm Process will Kill performance. On 45nm Perhaps it could be done without as serious of an impact but I doubt that AMD will follow that route

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I believe the functionality of what I would like to see is already there.

@ STEvil: This discussion isn't going anywhere, I think we agree to that. And BTW I still don't see how you made your point clear. But never mind.

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Originally Posted by STEvil

Congratulations (;)), you missed the points of my posts by about a mile.

All I want is to be able to choose a free integer value to determine the ram clock based on CPU frequency (as it is done now, but not limited to certain multipliers). For example if I were running at 2600mhz I would like to use anything from 5x to 25x (full range of supported multipliers) to choose the appropriate ram speed that I require.

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i agree wholeheartedly. i mean.. i even called for it more than a year ago, but i was told that amd's memory controller does the math of selecting the divider, so my plan of changing the bios didn't work out too well :(

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Originally Posted by ozzimark

i agree wholeheartedly. i mean.. i even called for it more than a year ago, but i was told that amd's memory controller does the math of selecting the divider, so my plan of changing the bios didn't work out too well :(

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Does no one listen to me when I say such a design is a bad thing for AMD? :confused:

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Originally Posted by nn_step

Does no one listen to me when I say such a design is a bad thing for AMD? :confused:

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no no no, i'm not talking about making it asyncronous. just make it so that instead of using those annoying ratios to indirectly select the memory divider based on the cpu multiplier, allow the bios to manually set the memory divider, we should have an option where we can directly change "x" in "cpu/x" :toast:

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Originally Posted by ozzimark

no no no, i'm not talking about making it asyncronous. just make it so that instead of using those annoying ratios to indirectly select the memory divider based on the cpu multiplier, allow the bios to manually set the memory divider, we should have an option where we can directly change "x" in "cpu/x" :toast:

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Alright then your problem is with the Mobo maker's fault, not AMD's

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Originally Posted by nn_step

Alright then your problem is with the Mobo maker's fault, not AMD's

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nope, because it's the memory controller that imputs the memory ratio and turns it into a divider. i wish it was the bios, but it appears that it isn't :(

its both.

The CPU has to support it (since it uses whole integer dividers to start with i'd assume they would put the complete feature in just in case it were needed...) and the BIOS has to be able to adjust it.