4930K Overclock

[nathadnmann]

Hi

I have a Rampage IV Black Edition motherboard with a 4930K processor. I have managed to overclock it to 4.3GHz @ 1.250V (Offset +0.10) however to get to 4.4GHz I have to jump to the 1.4V region. All other voltages are left at auto.

Digi +:
CPU LLC High
130%
VCCSA LLC Extreme
110%
All others left untouched.

I have a custom watercooling loop and temps are fine.

I was wondering if anyone had any ideas how I could get to 4.5GHz plus or is this the limit with a reasonable voltage for this chip?

[HiVizMan]

It appears that your CPU requires that larger than optimal increase after the 4.3 or 4.4 threshold. That is very common in processors. Often it is a huge increase in voltage .200 for very little gains in frequency.

Sorry mate not much you can do about that. If you want higher frequency then you are going to have to deal with the added voltages.

[Arne_Saknussemm]

One thing...the 130 % is that current capability? If so the default AUTO setting is 140% and for higher clocks maybe 160% 170% will help...this setting is like the power target....

What are your system specs? If you are unstable with less voltage for 4.4 what happens...what BSOD codes?

Normally your VCCSA LLC needn't be that high unless you are trying to get high frequency stable or mixing kits of RAM...

[nathadnmann]

Thanks for the replies. I get BSOD code 124 predomenantly at 4.4. I have Corsair 2133MHz 11-11-11-27 2T RAM
What max 24/7 voltage would you recommend?

[Arne_Saknussemm]

It helps us get an idea of your system if you can post up exactly what you have....exact RAM kit etc.

What value is your board setting for VCCSA and VTT? If you are using XMP profile?

0x124 might be a lack of VCCSA....

but need answers to questions and details to be able to help 🙂

I would certainly not go over 1.4v 24/7 and personally I would sleep better bellow 1.35

[HiVizMan]

Arne Saknussemm wrote:


0x124 might be a lack of VCCSA....

but need answers to questions and details to be able to help 🙂

I would certainly not go over 1.4v 24/7 and personally I would sleep better bellow 1.35

I echo those sentiments.

1.35v for 24/7 is my limit too.

[nathadnmann]

HI

The RAM is Corsair CMZ16GX3M4A2133C11B Vengeance 16GB (4x4GB) DDR3 2133 Mhz CL11 XMP
I use the XMP Profile without changing any of the RAM voltages or speeds
VCCSA is at 1.2 on auto
VTT is at 1.05 on auto
PLL is manually set to 1.8V
All Spread Spectrums off

[Arne_Saknussemm]

Hmm...OK so that's a single quad channel kit and the VCCSA is already quite high...you could try 1.25 as an experiment or set VDIMM a bit higher than 1.5v say 1.6. and or VTT up 1.1 or 1.2. Set phases to optimized for the RAM and current capability to 120%.

I will say that Vengeance has a chequered history on this platform. You could do worse than to set F5 defaults in BIOS, set XMP for the RAM and then run Memtest86+ as per the guide in HiVizMan's sig...just to check the RAM out.

But maybe the CPU simply needs a lot more voltage to go that next step....

[nathadnmann]

Approaching 30mins with OCCT running at 125 x 35 (4375MHz)
Vore 1.32
VCCSA 1.11
VTT 1.25
PLL 1.9
LLC Mediuim and 180%

Ill try 125*36 for 4500 next

Thanks for your help getting this far

[HiVizMan]

How has it gone so far?