I7 6700K Problem ?!?

[BreaK_TV]

Hello i have some problems with my i7 6700k, i don't even know if this is a problem or not but i will explane it you you guys maybe i can get some help.
PC Specs
Case: Corsair Carbide 330R Blackout Edition
Power: Chieftec A-90 Series GDP-550C 550W
Cooler CPU Scythe Ninja 4\
Motherboard: ASUS Z170 PRO GAMING
DDR4: Corsair Vengeance LPX Black 16GB DDR4 3000MHz CL15
Video Card: GIGABYTE GeForce GTX 970 OC WindForce 3X 4GB DDR5 256-bit

Today i overclocked my CPU to 4.5Ghz ass you can see in the pictures at 1.260V the problem is that when i started the pc the Voltage showed in CPU-Z is around 1.380+/-

Aida64 CPUID sais i have the voltage that i entered in manual mode, but cpu-z doesn't say that.... what could be the problem ?

Here is the link where you can see the photos and screenshots...
https://drive.google.com/drive/folders/0B9ertfa8gDVbYXZ0VDRYSGhMRWc?usp=sharing

My question is why doesn't the voltage stais as i put it in the manual mode ?

 

[Ecky]

What you're seeing is something called "vdroop", and it's normal. When the CPU is loaded, voltage droops down. This is designed into the CPU by Intel to (if i remember correctly) keep it safe from voltage surges.

I highly recommend against using manual voltage. Offset voltage is better because it allows the voltage to drop low (~0.8v) when your CPU is not under load.

 

[BreaK_TV]

@Ecky - but i don't get it the voltage is allready on manual ... and the voltage still fluctuates...

 

[Ecky]

Yes, that's normal. Manual voltage doesn't lock the voltage to exactly one number, the CPU just requests only one voltage, but the voltage it actually receives from the motherboard will vary based on load.

By using "offset" instead of "manual", you allow the voltage to go down when the CPU is under lighter loads. High voltage is what eventually kills CPUs, and though 1.38v is not unreasonably high for Skylake chips, there's little reason to feed it that much voltage all the time, over-riding Intel's voltage tables which call for less voltage when the CPU is idle.

 

[BreaK_TV]

@Ecky - Can you give me a link to a tutorial how to use offset instead manual ? i never overclocked using offset settings, and i can't find any videos ...

 

[Ecky]

It will vary from board to board, but the basic premise is this:

All Intel CPUs have a voltage table, and if you leave the voltage on "auto", as you increase clockspeed, the voltage will go up too. You might get 1.3v at 4.0ghz, 1.325v at 4.1ghz, 1.350v at 4.2ghz, and so on. Once you pass a certain point, the voltage the CPU calls for won't be enough for stability, but you can add to it with offset. Let's say you're at 4.2ghz and the CPU is calling for 1.350v but is unstable. If you add a "+0.25v offset", instead of calling for 1.350v, the CPU will call for 1.375v. When the CPU clocks back down to 800mhz and is only asking for 0.800v, you'll get 0.825v, instead of the 1.375v you'd have with a fixed voltage.

As you increase clockspeed, you'll eventually run into instability. Simply add offset voltage until you have sufficient voltage that it's no longer unstable.

 

[BreaK_TV]

Can you take a look at my video ?
https://www.youtube.com/watch?v=sSOX747WwJQ

I overclocked to 4.6ghz with 1.335V, the power option from windows is set on Ballanced and the procesor goes down to 800ghz at 0.825V when is not needed.

 

[Suztera]

Can you take a look at my video ?
https://www.youtube.com/watch?v=sSOX747WwJQ

I overclocked to 4.6ghz with 1.335V, the power option from windows is set on Ballanced and the procesor goes down to 800ghz at 0.825V when is not needed.

You're not really running at 1.335V. You drawing up to 1.392v to run at 4.6Ghz. As long you don't get sustained 80C core temperature you are fine. If your Load Line calibration is set to auto then you should choose a level and retest the stability. Judging from the video, it looks like it will be at level 7. Problem with having a high level of LLC means you get vboost instead of vdroop. Personally going for 50% is ideal, so level 4. You would need to add more voltage if yous set to level 4.

While offset mode can work, adaptive mode may be an alternative for skylake. Adaptive only applies your predefined voltage at turbo speeds.

 

[BreaK_TV]

@Suztera - I played 1h of Arma 3 maxed out on full hd the max temp was 72. Can you tell me how i can change the level of LLC ?

 

[Suztera]

@Suztera - I played 1h of Arma 3 maxed out on full hd the max temp was 72. Can you tell me how i can change the level of LLC ?

It will be within the digi+ power control section in the bios.
Personally 1 hour testing game doesn't mean anything that much. You only tested for one hour. Doing a 24 hour or more test on AIDA64 or Realbench is my preferred stability test.

 

[Ecky]

There is "stable enough", and if the i7 doesn't crash in anything the OP does, I'd say it's adequately stable. I'd adjust clocks or voltage at the first sign of instability though.

72c after an hour of gaming is a perfectly fine temperature, and if your CPU is dropping to 0.825v / 800mhz at idle, you're using offset voltage. Looks like you're doing great with your overclock!

 

[BreaK_TV]

@Ecky - Thank you , i will test it in AIDA64 for some hours to be sure all goes well. i will be back with the results

 

[BreaK_TV]

Now i am runing at 4.6ghz and voltage in bios 1.330, LLC to lvl 5, the max voltage that AIDA64 CPUID is 1.360, max temps are 75 after 10 minutes of aida64 stress test, i will let aida64 stress test over night and see if all goes well.

 

[BreaK_TV]

@Ecky i want to say that my core vid voltage joes to 0.825V and the Core voltage stais at 1.328V at 800ghz... i will try to go with offset voltage... but today when i tryed it the voltage was going pretty high and the temps go very very high... i'm sure i was doing somethink wrong...

 

[Ecky]

You have too much offset then.