i7-4930K on a P9X79 PRO voltage?

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AspectX

AspectX

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Mar 3, 2014
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I had minimal issues Overclocking my i7-4930k on an Asus P9X79 PRO motherboard to a stable 4.5Ghz, however, I cant seem to get the voltage under 1.408v and wanted to touch base with a broader community of people to see if anyone had any tips or tricks to get this lower while maintaining the same OC? 1.408v might be ok, but it seems a little high to me, please correct me if I am wrong. Any information anyone has on this would be greatly appreciated.

Currently using 100 with a 45 multiplier (tried the 125 with a 36 multiplier, definitely didn't like that lol)

By the way, almost forgot to mention at 4.5Ghz and 1.408v I am getting the following temps:
Idle: 28-32 degrees across all 6 cores
Normal Load: 40-48 degrees across all 6 cores
Prime95 @ 30 min : 56-69 degrees across all 6 cores

 
Solution
S
This will let you run 4500 Mhz with Qaud channel 2133 mhz speed on P9X79 pro 4930.

Memory = XMP quad channel 2133 Mhz 9,11,11,31,2
BLCK = 100 x ratio of 45
Vcore = 1.385 v
CPU VCCSA = 1.175 v
CPU PLL = 1.2 v
VTTCPU = 1.1875 v
If you are running quad channel four banks of memory
VTTDDR CH AB = 0.825 v
VTTDDR CH CD = 0.825 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%.
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ihog

ihog

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May 22, 2012
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What you can do is to try lower voltages. If you can't get the OC stable at lower voltages, then you're stuck at 1.408V. Every CPU is different, and if that's what your CPU needs to keep 4.5 GHz, then that's what it needs.

You could also try a new motherboard that has more power phases, like this: http://www.asrock.com/mb/Intel/X79%20Extreme11/

It might let you use lower voltages, but I don't think it's worth the money, especially when your temps are fine.
 
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AspectX

AspectX

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Mar 3, 2014
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I haven't played with the voltages too much mainly out of ignorance. I am afraid I will screw something up if I don't do it correctly. Not knowing what to specifically change in the BIOS to make a correct voltage drop is part of the problem I am having. Any advise on how to drop the voltage safely while maintaining the 4.5Ghz? I only pick 4.5Ghz because the system was very stable at higher clocks, but alas, the voltage was also substantially higher (e.g. 4.6Ghz was around 1.42v, 4.7Ghz was at 1.44v and I was too chicken to go any higher than a 1.44v on the processor)... Again, any advise on dropping the voltage would be hugely appreciated.

Is 1.408 too much for an i7-4930k? I have seen some forum threads out there stating the 22nn IVB-E processors should really be maintained under 1.3v ? Thoughts from the pros?
 
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Sam66er

Honorable
Dec 15, 2013
32
1
10,540
I am using same Mobo and same intel 4930k as you - OC 4.5 ghz stable at 1.385v

Memory = XMP quad channel 1866
BLCK = 100 x ratio of 45
Vcore = 1.385 v
CPU VCCSA = 1.15v
CPU PLL = 1.8v (I do try lower to 1.2v - it take quite a long time for prime 95 BSOD and funny, it take me lower vcore to achieving OCing by adjust to 1.2v on CPU PLL )
VTTCPU = 1.175v
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%.

My 4930k chip no matter how . it need high Vcore to achieve high speed not like others can achieve even 5.0 ghz without even over 1.4 v vcore.

Desktop Intel i7 4930k Overclock to 4500 mhz. Asus P9X79 Pro Hyper X beast +
GSkill RipjawX Quadchannel 32G, ATI R9290X Sapphire TriX, Cooler Cosair H80i, NZXT Phantom 630 gunmetal. Dual 27" monitor 2560 x 1440. QHD refresh OC 80 hz.

 
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S

Sam66er

Honorable
Dec 15, 2013
32
1
10,540
This will let you run 4500 Mhz with Qaud channel 2133 mhz speed on P9X79 pro 4930.

Memory = XMP quad channel 2133 Mhz 9,11,11,31,2
BLCK = 100 x ratio of 45
Vcore = 1.385 v
CPU VCCSA = 1.175 v
CPU PLL = 1.2 v
VTTCPU = 1.1875 v
If you are running quad channel four banks of memory
VTTDDR CH AB = 0.825 v
VTTDDR CH CD = 0.825 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%.
 
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