What's wrong with my 4940MX overclock settings?

The Cache frequency holds stable @ 4.1 GHz but the CPU frequency keeps fluctuation between 4.01 GHz and 4.09 GHz what do I need to change? Increasing the reference clock to 100.2 or 100.3 doesn't change a thing

I have Liquid Ultra on my 4940MX

 

The problem is C states demotion: C1 Auto demotion and C3 Auto demotion is enabled. You can disable these if you use Trottlestop. But drop down to 4.01ghz is much I think. This occurs only during idle but not under load.

 

ah ok so nothing is wrong with my OC settings then. These are the settings that Mr. Fox suggested.

 

No processor is similar . Works these settings for you then it is all good... Nothing wrong that I can see. The important thing is that they work while giving you ok temperature.

Edit: http://www.intel.com/content/dam/ww...h-gen-core-family-desktop-vol-1-datasheet.pdf
http://www.hardwaresecrets.com/arti...About-the-CPU-C-States-Power-Saving-Modes/611
http://www.cs.berkeley.edu/~krioukov/realityCheck.pdf

 

Uncheck C1E in ThrottleStop and they should stay pegged out...

 

If you Uncheck(removing the cross) C3 Auto demotion and C1 Auto demotion becomes benchmark results in SSD tests such as As ssd and Crystal diskmark to be noticeably lower.

 

I think this did it....... Thanks bro

 

Run a As ssd and Crystal Disk Mark test after removing all cross...

 

I think this did it....... Thanks bro

Nevermind, the moment I ran throttle stop and posted this, 2 mins later my system froze with a black screen then rebooted and set all OC settings in BIOS to default because what I had configured in Throttle Stop is a 4.3 GHz overclock. Back to my stable 4.1x4 on all cores OC

 

How have you got access to the ref clock?

Will take some pics of the U3 tomorrow for you bud

 

Nevermind, the moment I ran throttle stop and posted this, 2 mins later my system froze with a black screen then rebooted and set all OC settings in BIOS to default because what I had configured in Throttle Stop is a 4.3 GHz overclock. Back to my stable 4.1x4 on all cores OC

Either is processor unstable due to low core voltage or unstable cashe ratio. Try slightly lower the Cashe ratio to 38 or increase the offset voltage at Core and Cashe and test stability. If you only reduce Cashe ratio it will not affect much in performance(the core is king not cashe ratio). It is a very variable quality on these Hotwell extreme processors. Many of i7-4940mx is poorly binned chips. Almost no equals.

 

Please share with me your BIOS OC settings and XTU settings for both the CORE and CACHE

thanks bro