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i7 3820 - 4820 Overclock Club - Page 26

post #251 of 6506
Quote:
Originally Posted by mcandmar View Post

I would like to run 166 for the different memory dividers. Memory is 2133mhz but at 125 its 2000mhz. 166 gives the option of 2222mhz. I'm just curious devil-smiley-019.gif

Not all chips' IMC can do 166MHz. Try increasing BCLK. smile.gif
    
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post #252 of 6506
water cooling:thumb:
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post #253 of 6506
Thats a good idea, never thought of using custom clock frequencys. I see stobeur is running 130mhz on his, very nice OC by the way. What memory are you using?
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post #254 of 6506
@ stobeur

^^^^^^ Really nice voltages for that clock!!

Gratz!

biggrin.gif
post #255 of 6506
Quote:
Originally Posted by mcandmar View Post

Thats a good idea, never thought of using custom clock frequencys. I see stobeur is running 130mhz on his, very nice OC by the way. What memory are you using?

I tried it awhile ago when I built my rig with success. Don't know if its encouraged/safe or if all MB's can do it. I know mine can. My straps available are 100/125/166 but I can tweak the BCLK itself beyond the pre determined strap limitations.
     
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post #256 of 6506
Quote:
Originally Posted by mcandmar View Post

Thats a good idea, never thought of using custom clock frequencys. I see stobeur is running 130mhz on his, very nice OC by the way. What memory are you using?

ripjaw x 2133 cas 9
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post #257 of 6506
1.38 in bios no stable
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post #258 of 6506
Quote:
Originally Posted by stobeur@hotmail.fr View Post

ripjaw x 2133 cas 9

I'm using 125*38, 1,345 Vcore

I'm Using Ripjaws Z 1866 and a rampage IV Formula and i'm not able to get it stable over 1333,


Mine are at 11-11-11-31-2n

Can you please post your dram settings?

Thanx.
post #259 of 6506
Quote:
Originally Posted by stobeur@hotmail.fr View Post

ripjaw x 2133 cas 9

Very interesting, i am also using the same memory, 16gb Ripjaw 2133 c9,11,10,28. I have read reviews of the memory claiming they ran stable at 2.4g with c10,11,10 timings. I really need to work on mine and see what i can get from them.

Does anybody know the math behind the memory clock multipliers as i cant find any info on it. I am assuming its a multiplier of BLCK but it seems to have large steps in the bios ~266mhz difference.

@frank.lopez, Are you using the XMP profiles or manually configuring them? Check the voltage too as the XMP profiles raises the memory to 1.65v and VCCSA to 1.050 on mine.
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post #260 of 6506
Quote:
Originally Posted by mcandmar View Post

Very interesting, i am also using the same memory, 16gb Ripjaw 2133 c9,11,10,28. I have read reviews of the memory claiming they ran stable at 2.4g with c10,11,10 timings. I really need to work on mine and see what i can get from them.
Does anybody know the math behind the memory clock multipliers as i cant find any info on it. I am assuming its a multiplier of BLCK but it seems to have large steps in the bios ~266mhz difference.
@frank.lopez, Are you using the XMP profiles or manually configuring them? Check the voltage too as the XMP profiles raises the memory to 1.65v and VCCSA to 1.050 on mine.

@ 2.4gb the vccsa value acording to Gskill site should be 1.250


Edited by frank.lopez - 3/27/12 at 9:55am
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