Help with overclocking an i7-6850K

[malessandro]

Hello

I already told about my overclocking ambitions in the last thread.

I did some research and found this article: http://www.overclock3d.net/reviews/cpu_mainboard/intel_6950x_6900k_6850k_cpu_review/3

The CPU-Z screenshot from the i7-6850K is very impressive.

My screenshot looks like this:

I am not happy with the high voltage but right now I can't go lower because it wont be stable. Temperatures with OCCT are OK under 75°C but in prime95 some cores peak to 90°C.

In the Bios I set voltage and multiplier for the Core and memory to XMP.

Any hints which Bios settings would be important to go towards the 3.0V but remaing at the 4.4GHz? I think the difference is too high to blame it on the lottery? Also I am unhappy with the XMP but I cant find the right place to add the RAM voltage in my bios.

My rig:

Motherboard: MSI X99A Godlike Gaming Carbon
Power Supply: be quiet! Dark Power Pro 11 850W
CPU: i7-6850K
Cooler: Arctic Liquid Freezer 240
RAM: G.Skill Trident Z  DDR-4 F4-3200C14Q-32GTZSW ( 4x8192MB ) CL 14-14-14-34 1.35V
Boot-Drive: Samsung 950 Pro 512GB
Case: be quiet! Dark Base 900 Pro
GPU: Zotac GTX 980 Ti Amp! Extreme 6GB

Any help is much appreciated.

Have a great time,
malessandro

 

[Kilbane]

Any hints which Bios settings would be important to go towards the 3.0V but remaing at the 4.4GHz? I think the difference is too high to blame it on the lottery?

3.0v?? I will assume you mean you are looking to get down to 1.30v.

First off, the silicon lottery plays a huge part in how each chip will fair.

Although your chip will get to a stable 4.4Ghz, don't expect it to get there under the same volts and at the same temps as another chip that can get there.

Most CPU's will have a point at which excessive voltage increase is needed to get the smallest amount of extra performance. For example, a CPU may sit at 4.3Ghz @1.25v all day long, stable as a rock. However to achieve 4.4Ghz may need 1.35v to be stable. Another chip may do better or worse than that.

There are many voltages that can be tweaked and changed to get a more stable OC, however, it would be unlikely to change the Vcore needed. Plus plugging more voltage through other parts of the CPU will only result in further temp increases.

 

[malessandro]

Hi Kilbane,

yes, I mean going towards the 1.30V.

Right now I am testing with 1.32V.

I might just stick with it and try a different cooling solution beginning with a different thermalpaste.

I read in some places that you can change the Base Clock/Ring to get a faster CPU Cache but then again this would affect all parts of the Computer. Would it help with the core temperatures if I increase the Ring Ratio and lower the Core Voltage? Also I read that this would lower the memory. So yea I try to work me through this. One step at a time

Thanks for helping!

Have a great time,
malessandro