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Ivy Bridge 4 sticks of 4GB DDR3 1866Mhz OC to 2133Mhz. Need a lil help please.

post #1 of 19
Thread Starter 
So I have four 4 sticks of G.Skill 1866Mhz Sniper Series Cas 9. Stock timings are 9-10-9-28 @ 1.5v 1n command rate. I've got all 4 sticks running at 2133Mhz 10-12-12-31 @1.65v 2n command rate fully stable. My question is, would it be possible to lower the memory voltage by raising the VTT (VCCIO) or VCCSA voltage instead of leaving them both at stock? Do I have to raise VTT (VCCIO) or VCCSA voltage even though I'm stable?

My second question is, would I be better off leaving my memory at stock 1866Mhz, 9-10-9-28 1n @ 1.5 or 2133Mhz 10-12-12-31 @1.65v 2n?

I have 2 pairs of these, http://www.newegg.com/Product/Product.aspx?Item=N82E16820231460

1866Mhz 9-10-9-28 1n SuperPI Mod v1.9


2133Mhz 10-12-12-31 2n SuperPI Mod v1.9

Edited by DADDYDC650 - 3/29/14 at 5:16pm
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post #2 of 19
Why would you change voltages if you're stable?

SuperPi will tell you which configuration is faster.
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post #3 of 19
well, which settings do you prefer?
post #4 of 19
Thread Starter 
I'll go ahead and run SuperPI and see which is best.

Xinoxide, I prefer faster speeds.
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post #5 of 19
Thread Starter 
1866Mhz 9-10-9-28 1n vs 2133Mhz 10-12-12-31 2n SuperPI Mod 1.9 results posted at the top of thread.
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post #6 of 19
Quote:
Originally Posted by DADDYDC650 View Post

I'll go ahead and run SuperPI and see which is best.

Xinoxide, I prefer faster speeds.

I think this is the answer you were looking for!
post #7 of 19
Try running with a command rate of 1N instead of 2N.
Do you crash with 1N overclocked?
post #8 of 19
Thread Starter 
Quote:
Originally Posted by Tokkan View Post

Try running with a command rate of 1N instead of 2N.
Do you crash with 1N overclocked?
My board won't allow it at 2133Mhz no matter the voltage.
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post #9 of 19
Quote:
Originally Posted by DADDYDC650 View Post

Quote:
Originally Posted by Tokkan View Post

Try running with a command rate of 1N instead of 2N.
Do you crash with 1N overclocked?
My board won't allow it at 2133Mhz no matter the voltage.

It would probably work out just fine with 2 sticks.

if the capacity is a concern then you might just be stuck with the 1866mhz.
post #10 of 19
Thread Starter 
Quote:
Originally Posted by Xinoxide View Post

It would probably work out just fine with 2 sticks.

if the capacity is a concern then you might just be stuck with the 1866mhz.
So you think I should stick with 1866Mhz 1n instead of 2133Mhz 2n?
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