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Overclocking i7-4930k Help - Page 75

post #741 of 1417
Here is my 4960x.

Currently sitting at 4.77Ghz @ 1.376v. Best way to get higher frequencies with Ivy-e is using 1.25 strap. Also allows you to reduce PLL voltage as the modulation is lower on higher BCLK, which in turn lets you lower V core.

4.7Ghz on 100 strap for me requires 1.4v


Edited by Silent Scone - 3/20/14 at 3:35am
post #742 of 1417
Quote:
Originally Posted by Silent Scone View Post

Here is my 4960x.

Currently sitting at 4.77Ghz @ 1.376v. Best way to get higher frequencies with Ivy-e is using 1.25 strap. Also allows you to reduce PLL voltage as the modulation is lower on higher BCLK, which in turn lets you lower V core.

4.7Ghz on 100 strap for me requires 1.4v


Can you explain how and why that works, and does it work for all these CPU's?
post #743 of 1417
Quote:
Originally Posted by Mercy4You View Post

Can you explain how and why that works, and does it work for all these CPU's?[/qu


125 strap seems to yield best results in terms of Vcore needed. This is because the higher BLK is creating less modulation in PLL and thus the CPU has less errors to correct and a "cleaner signal" High BLK along with low PLL is the way to go with most CPU.
post #744 of 1417
Quote:
Originally Posted by Mercy4You View Post

Can you explain how and why that works, and does it work for all these CPU's?

125 strap seems to yield best results in terms of Vcore needed. This is because the higher BLK is creating less modulation in PLL and thus the CPU has less errors to correct and a "cleaner signal" High BLK along with low PLL is the way to go with most CPU.
post #745 of 1417
Quote:
Originally Posted by Silent Scone View Post

125 strap seems to yield best results in terms of Vcore needed. This is because the higher BLK is creating less modulation in PLL and thus the CPU has less errors to correct and a "cleaner signal" High BLK along with low PLL is the way to go with most CPU.

Thx, I am gonna try it. What RAM speed do you use to get those clocks? Is there difference when you use 2 banks or 4?
post #746 of 1417
2400 c9 cr1 @1.7v. Using dual channel doesn't seem to get me any further. Silicon limit is definitely reached smile.gif
post #747 of 1417
..and VCCSA?
post #748 of 1417
1.2v. Pll 1.65 VTT 1.1
post #749 of 1417
Quote:
Originally Posted by Silent Scone View Post

1.2v. Pll 1.65 VTT 1.1

thumb.gif

I gather these are fixed voltages? Do you know how this works on '' auto ''. I have ASUS mobo, will that automatically up those voltages when upping the multiplier/strap/ Vcore?
post #750 of 1417
The best i can run is 4500 Mhz with Qaud channel 1866 mhz speed on P9X79 pro 4930.

Memory = XMP quad channel 1866 Mhz 9,11,11,31,2
BLCK = 100 x ratio of 45
Vcore = 1.385 v
CPU VCCSA = 1.15 v
CPU PLL = 1.2 v
VTTCPU = 1.175 v
If you are running quad channel four banks of memory
VTTDDR CH AB = 0.8 v
VTTDDR CH CD = 0.8 v
all will be auto and disable all power saving mode and all spread spectrum.Disable intel speed step technology and enable turbo mode only. enable all over voltage and disable intel adaptive thermal monitor and disable all C state and disable anti surge support.

Digi + power control
CPU LLC and VCCSA LLC on high 120 to 130% . all will be auto frequency and on optimise to 120%.

I cant OC to 4600 mhz without passing 1.4 v on vcore .
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