I7 6900K overclock

[samuelfita]

Hello friends,

My name is Samuel and I want to overclock my CPU and raise it at 4.2Ghz.
I have no knowledge and please, if you can then please help me to raise it at 4.2.
If you need to know my system for that, here is the information. I have a
- Gigabyte X99 Ultra Gaming motherboard
- I7-6900K CPU
- Cooler Corsair Hydro H115i
- 2 graphic cards in SLI Aorus GTX1080TI Waterforce Xtreme Edition 11GB
- Memory 128 GB Ram at 3466Mhz Corsair Domino Platinum
- Thermaltake modular power supply 1475W
- 3 Samsung SSD 5 TB totally. (2+2+1)
I have an LG Led IPS Monitor 38 inch at 3840x1600.

My CPU runs now at 4.0 Ghz. Please, will help me step by step how to raise it at 4.2?
I appreciate and thank you very much.

Samuel F.

 

[feelinfroggy777]

I would start by going into your bios and set the CPU multiplier to 42 and see if your system will boot. It may boot with no other changes. If it boots you should run a stress test or benchmark to see if it is stable and temps are good. Cinebench is a very common benchmark.

If it is not stable or does not boot into windows, then here is a good video on overclocking and should help show you how to do it.

https://www.youtube.com/watch?v=Qcta3RStYSM

 

[samuelfita]

Hi,
Thank you very much. I do apreciate your support.
I did what said and I set my CPU at 4.2. My computet booted without any problem.
I made the Cinebench R15 test and run only the CPU and it gave me a result...1748 cb.
Is it all right?
I also want to tell you that I looked over voltage and it's 1.271..

 

[rodolphe.viard]

Hi Samuel,

The first Goal of overclocking is to find the minimum voltage required for a given frequency to remain stable.
First, at stock, note your frequency and voltage you can read during a stress test.
You put them in manual mode in your bios.
Then, you have two ways :

1°/ Better performance :
With stock voltage, bump your multiplier until it's not stable then bump voltage (increments of 0.025-0.05V) and so on.
Once you've reach the stable frequency you want, lower the voltage as much as you can as long as it remains stable.

2°/ Better thermals :
Keep stock frequency and reduce voltage as much as you can until it's not stable.

For 1°/ and 2°/, once you're done with your tweaking and that everything is stable for your usage, you can re-enable power saving features as C-States and put the voltage on adaptative to let the voltage and frequency fluactuate with the load.

Tips: stay below 1.35-1.38V and 85°C during stress test for daily usage.


Rodolphe.

 

[feelinfroggy777]

Hi,
Thank you very much. I do apreciate your support.
I did what said and I set my CPU at 4.2. My computet booted without any problem.
I made the Cinebench R15 test and run only the CPU and it gave me a result...1748 cb.
Is it all right?
I also want to tell you that I looked over voltage and it's 1.271..

You score looks about right. If you just changed the multiplier to 42 then your motherboard will be pushing stock voltage which is good. 1.271 volts sounds about right. I agree with rodolphe.viard, I would not go over 1.35 volts and you want to keep your temps below 85C. I like my average load temps to be below 80C for a daily driver.

You can try for 4.3 or higher, if you get a blue screen you will have to up the voltage. I would increase by .01 volts till it is stable at 4.3. So if it crashes I would run 1.28, then 1.29 all the way till 1.35. If you get to 1.35 and you still get bluescreens, then I would go back to the last stable frequency you had.

Again, watch your temps because prolonged exposure to high temps can have negative consequences on a CPU and the 6900k is not a cheap CPU. I find that Intel XTU is good for monitoring your CPU temps.

 

[samuelfita]

Thank you very much for your support.

I have set my CPU at 4.2 and the voltage is 1.271.
I run the Aida Extreme Test and it had stability.
The temperature per package was maximum 65.
And per Core was maximum 73.
The temperature in my room was about 27 celsius.
Is it OK with that?
I have one more question: how far may I go with overclocking, in my case with I7 6900K? The CPU will be demaged at 4.2 or if I raise it a little higher, for example 4.3?
I also want to say that I set the frequency of my 128GB of Ram at 3000 although they go till 3466.

Thank you.

Samuel

 

[feelinfroggy777]

I don't know how high the 6900k will overclock. Each individual chip is different. The base clock is 3.2 and the max turbo is 3.7ghz, so 4.2 is already more than 10% clockspeed bump from the turbo. You are not going to damage your CPU unless you put too much voltage or it gets to hot. You make it too hot by too much voltage.

So a good rule of thumb is no volts over 1.35 and average load temps under 80C.

 

[samuelfita]

Thank you very much for your support and answering to my questions.
After several tests and running also Firestrike, the difference of CPU score between 4.0 and 4.2 wasn't much..
With 4.0 I had 20.700 and with 4.2 just 21.600. It's not worthy to put so much pressure on my CPU for about a thousand points ..
I left it at 4.0.
Anyway I am planning to upgrade and get the I9 7980XE.
Thank you friends.

Samuel

 

[feelinfroggy777]

What do you use your rig for? I am just curious because you have some very impressive hardware. The RAM alone cost as much as a high end rig.

 

[samuelfita]

I play Flight Simulator Prepar3D V4.2
This is the first reason why I have this system.
Then another reason is that I want to be in "TOP" with highest scores...maybe it's crazy because I spent over 8000 Euro to build this system ..
I just want to have it higher and higher and I keep upgrading it since 2014...