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confused about happy OC specs like 5.0 Ghz - Page 2

post #11 of 26
Thread Starter 
I guess whats why I was scratching my head about the 100 x 50... and I did not know that that's the only way to OC the new SB procs. I'm looking at the 5+Ghz specs and I'm asking myself OK where are the people that... overclock the FSB... you could say.

I guess that's not possible on the SB proc... which is fine, but does not really answer why others on other procs are doing what they are doing.

On the other hand I could be way off and getting my processors mixed up but I swear they are doing this on your 920 & 930 i7s.
    
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post #12 of 26
920 & 930 can't be set to 50 multiplier.
My is capped at 24 multiplier so i have to OC it via BCLK

SB is designed differently. You can't increase FSB without damaging your HW. As far as i understood.
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post #13 of 26
Thread Starter 
Quote:
Originally Posted by Metamorphosis View Post
I only know one type of overclocker.. the one that gets the highest Ghz number
I suppose in the grand scheme of things, that's geekishlee (is that a word?) true
    
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post #14 of 26
Sandy bridge users have no choice. Just like you have no choice in raising the Multiplier past 22...
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post #15 of 26
Thread Starter 
Basically if this thread helped me out in any way... it's for me to bump my x20 multi back up to 22 instead of trying to go the other way for some notion that BCLK is super important.... unless someone replies otherwise

Thanks
    
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post #16 of 26
Quote:
Originally Posted by smokiez View Post
Basically if this thread helped me out in any way... it's for me to bump my x20 multi back up to 22 instead of trying to go the other way for some notion that BCLK is super important.... unless someone replies otherwise

Thanks
There where few threads regarding this.
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post #17 of 26
Quote:
Originally Posted by smokiez View Post
That makes sense... I should have rephrased my post not useing x50 as a multi because it automatically imples a SB proc.

I'm saying I see the same situation with 920, 930.. etc procs where ratio is 21/22 and you bump the FSB ever so slighly and you're already at 4+ Ghz... and at the same time... via the same procs, you see users doing the opposite... dropping that 21 or 22 in favor of like 10 - 15 but upping the FSB to crazy hights.

I guess I should have been more clear... that's what i mean by 2 different types of overclockers. Same processors but people doing different things.

Chris
There are tons of different ways to get a certain clock. Right now I'm running 4.2GHz. Here are two ways to do this:

CPU Freq: 4200
BCLK: 200
Multi: 21
Mem Freq: 1600
Mem Multi: 8
IMC Freq: 3600
IMC Multi: 18
QPI Freq: 3600
QPI Multi: 18

- or -

CPU Freq: 4224
BCLK: 176
Multi: 24
Mem Freq: 1760
Mem Multi: 10
IMC Freq: 3696
IMC Multi: 21
QPI Freq: 3872
QPI Multi: 22


With the second OC, my memory clock is higher as is my Uncore (IMC) and QPI, even though the BCLK is lower.
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post #18 of 26
Thread Starter 
Quote:
Originally Posted by DiNet View Post
There where few threads regarding this.
yeah I read through http://www.overclock.net/intel-cpus/...lier-bclk.html ... is there another that answers the question of performance?

That thread basically suggests manipulating one or the other because of "heat" wich does not really answer which is better to change up when it comes to performance.
    
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post #19 of 26
Quote:
Originally Posted by smokiez View Post
Basically if this thread helped me out in any way... it's for me to bump my x20 multi back up to 22 instead of trying to go the other way for some notion that BCLK is super important.... unless someone replies otherwise

Thanks
Well, outside of SB systems it really depends on what you can get. In general, between two OCs that have exactly the same clock speed and RAM multiplier but one has a higher BCLK, the one with the higher BCLK will perform better because the memory is clocked higher. On any given system it may even be the case the an OC with a slightly lower CPU clock speed will perform better if it has a higher BCLK, but its heavily dependent on the system and even what benchmark you're running.

So test with a benchmark that's relevant to what you use the system for, and decide for yourself which is better.
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post #20 of 26
Quote:
Originally Posted by xxbassplayerxx View Post
There are tons of different ways to get a certain clock. Right now I'm running 4.2GHz. Here are two ways to do this:

CPU Freq: 4200
BCLK: 200
Multi: 21
Mem Freq: 1600
Mem Multi: 8
IMC Freq: 3600
IMC Multi: 18
QPI Freq: 3600
QPI Multi: 18

- or -

CPU Freq: 4224
BCLK: 176
Multi: 24
Mem Freq: 1760
Mem Multi: 8
IMC Freq: 3696
IMC Multi: 21
QPI Freq: 3872
QPI Multi: 22


With the second OC, my memory clock is higher as is my Uncore (IMC) and QPI, even though the BCLK is lower.
with the second OC your Mem Multi is 10, not 8. that's why your memory clock is higher.
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