Setting Turbo Ratio by 'Per Core' does Not Work on X79 Asus Rampage 4 Formula

[technomorph]

Hi,

I have overclocked my X79 R4F with an i7-3930k to 4.6GHz using the following guide which I'm sure many of you will have seen:

http://www.youtube.com/watch?v=Kx2z07sFM2I

All is well, but I now want to experiment with setting the multipliers on the cores independently. I've set the Turbo Ratio setting to 'By Per Core' and set the core multipliers as follows:

Core 1: 46
Core 2: 46
Core 3: 47
Core 4: 47
Core 5: 46
Core 6: 46


My issue is that when stress testing using AIDA64, CPUID states that the CPU is only running at 3.6GHz, where I would expect to see at least 4.6GHz based on the above configuration. The core temps are consistent with 3.6GHz. I have tested using x264 as well to see if it's something to do with the stress tester within AIDA64, but I get the same result. Is there something else that needs to be set in order for different core multipliers to be used?

I've posted this on the ROG forum, but no solutions yet.

Cheers

 

[Master&Puppet]

If you set them all to x46 do they all run at 4.6?

 

[Brnjamin]

Same issue w/ 3930k and Asus P9X79 Deluxe

Any news on this? I'm having the same issue.
M&P, to answer your question, yes. If I set all per core to the same multiplier it still boots into Windows at x36. It shows correct multiplier in the BIOS, however.
Any help would be appreciated I've got one pesky core that is getting too hot for my desired overclock - I've gone from air to custom water. Reseated, reapplied TIM multi times. Same core is always at load 15 - 20 higher than its friends.
FYI I also used Asus JJ's video above to for my OC settings.
I had this per core setting "not sticking" issue from optimized defaults as well. Boot into windows and stuck at x36.
Naturally, Intel was no help. Asus was less unhelpful but would want to try a new board, a new CPU, or maybe it's a BIOS issue - haha yeah - fair enough, Asus, but that much I had guessed.
Anyway really hoping it's fixable and I'm just missing something. Esp since Intel is unlikely to send me a new 3930k. At stock my temps are fine.
Can get screen shots up later.
Thank you guys, I would really appreciate any help, first time system builder, watercooler, and OCer here.

 

[tinytomlogan]

Turn turbo off. Just set the main ratio - you dont need turbo.

 

[Brnjamin]

I'm not sure I understand how that will help but that's why I'm here. I'll try turning off turbo as you suggest now - In case I wasn't clear my problem is that when I set a per core multiplier it doesn't "stick". When I boot to Windows it is at x36 or 3.6ghz max - same as OP.
Setting it across all cores works - Right now I'm running at x48 or 4.8ghz across all cores and I'm almost able to do a long test with Prime but one core is too hot (average of 18 degrees C above the the others) so I want to adjust the multiplier per core and see if that brings the temp down on that core. FYI it's core 6.
FYI in IBT I pass at "standard" but fail at "high".
Any more info I can provide please let me know.

 

[Brnjamin]

18 degrees as an average might be an over estimate - core 6 is always hotter. At 4.8ghz all cores Prime 95 - small FFTs the other cores bounce nicely between say 66 and 77 or so while core 6, my problem child, keeps creeping up to 85, 86, 88
Been playing with lowering the Vcore bit by bit. Currently at 1.410 Either it BSODs once core 6's temps get down around 80 with lower vcore or core 6 gets too hot at say 9 mins in or so and either throttles, locks up, bsod, or I stop the test
If there's another way to find the sweet spot I am open to suggestions

 

[tinytomlogan]

You need all the cores to be the same mate, if one core is hotter reseat the heatsink. Youll never get them all level.

 

[Brnjamin]

Yeah I've reseated the block twice with this current set up - apogee HD, custom water loop. Tried rotating the block 90 degrees. Tried reseating the cpu itself.
Before this I had a hyper 212 evo and had the same issue with core 6 overheating trying to get above 4.2ghz with that cooler. Redid the mount three or four times with that thing. Got better results in general but never fixed core 6's temp difference.
I'll try again though can't hurt. The apogee is dead easy to mount.
I really think I can do 4.8 - it just sucks that throwing more money at my cooling might be my only option if I'm gonna be stubborn. Which I am. Kinda running out of room in my case...
FYI using realtemp and CPUZ, HWmonitor.
Also tinytom your sig gif is hypnotizing me. must. go. kill. zombies.

 

[tinytomlogan]

Ahhhhhh then after that last post its just your cpu mate.......

4.6 is a good clock, 4.8 would mean its practically a dream chip. Dont beat yourself up if it wont do it.

 

[Brnjamin]

Haha alright that makes me feel better, thank you. I remain open to suggestions if anyone else has any. I'm not the most experienced but it seems rare to have a cpu that clocks this well on all but one core. FYI I'm gonna try some more powerful fans on my rad next. Will update if I have success.