OC i7 6700K

wingman99 · Jul 12, 2016

Leegit said:
I would like to suggest two things:

1. Go about this more scientific.
2. Err on the side of caution.

Typically you want to start at stocks speeds and slowly work your way up to your maximum overclock, its a marathon not a foot-race Right now you are just jumping around. Try documenting your progress/results and go off others examples. Here's what I would do... reset all your BIOS settings, toggle manual multiplier and voltage. Try the following settings:

Multiplier = 40 @ 1.20 V
Multiplier = 42 @ 1.25 V
Multiplier = 44 @ 1.35 V

If you can't pass Prime 95 Small FFT over 30 mins, then raise your voltage by 0.025 and try it again. Once you pass Prime 95 Small FFT test over 30 mins, try to lower your voltage while staying at the same multiplier. After you determine the lowest possible STABLE voltage for that multiplier, move up to the next multiplier. After you figure out roughly how much voltage you need per extra multiplier. You can run some longer tests (1-2 hours), to insure that to don't crash during normal usage.

PS: The CPU run off a base clock speed times a multiplier to get its operating frequency... so (multiplier) x (baseclock) = frequency; 44 x 100 = 4400 MHz = 4.4 GHz

Is 1.20vcore your stock voltage for stock i7 6700k clock with turbo?

Leegit · Jul 12, 2016

I think its like 1.15V in BIOS on auto, under Prime95 Small FFT it like spikes to 1.20/1.26 sometimes during Turbo to 4.2 on one of the cores?

wingman99 · Jul 13, 2016

Leegit said:
I think its like 1.15V in BIOS on auto, under Prime95 Small FFT it like spikes to 1.20/1.26 sometimes during Turbo to 4.2 on one of the cores?

1.26 is just fine for stock voltage for one core turbo, intel uses dynamic vcore voltage, with more load there is more voltage. When I tested stability at 4.2GHz with my i5 6600k it was stable with a safety margin at a peak Vcore of 1.26v. For my 4.5GHz clock it is a Vcore 1.296v to 1.332v, spread spectrum cases the variance in voltage.

NeonCancerCandy · Jul 24, 2016

what is the 6700k's max safe voltage? 1.45v ? for like 24/7 usage. say you could get 4.8 at 1.45 is that safe 24/7 ?

sorry didn't want to make my own thread

Kenrou · Jul 24, 2016

Leegit said:
I think its like 1.15V in BIOS on auto, under Prime95 Small FFT it like spikes to 1.20/1.26 sometimes during Turbo to 4.2 on one of the cores?

Mine stock was 1.2v on BIOS

- - - Updated - - -

NeonCancerCandy said:
what is the 6700k's max safe voltage? 1.45v ? for like 24/7 usage. say you could get 4.8 at 1.45 is that safe 24/7 ?

1.42v max safe for 24/7, 1.52 max :thup:

NeonCancerCandy · Jul 24, 2016

Kenrou said:
Mine stock was 1.2v on BIOS

- - - Updated - - -

1.42v max safe for 24/7, 1.52 max

alright. i've reached a wall i guess. i can get 4.6 stable at 1.408 but 4.7 took 1.436 and 4.8 took 1.455

4.6 is good enough i guess =P

Kenrou · Jul 24, 2016

I've been told several times that there's not really any point in going above 4.5ghz for gaming/day to day and to see how low i can go with it (voltage wise), you can try the same ? whats your temps for 4.6ghz ?

NeonCancerCandy · Jul 24, 2016

Kenrou said:
I've been told several times that there's not really any point in going above 4.5ghz for gaming/day to day and to see how low i can go with it (voltage wise), you can try the same ? whats your temps for 4.6ghz ?

55* during gaming, 81* max during stress testing. 70*F ambient (air conditioned room)

this is my 4.5 stable though

1.296v but sometimes spikes to 1.376 idk what that means haha
now that i think about it, the 4.6 was most around 1.36 but spikes to 1.408...

Jeff G · Jul 24, 2016

Ive noticed at 4.7 stable that most games dont utilize 100% cpu for any extended periods, so unless you're running a cpu intensive game chances are your gpu will be your limit before cpu (so you wont see much ingame difference between 4.5 and 4.7).
I saw a noticeable difference between 4.5 and 4.7 in benchmarks, but nothing in games.
My volts max about 1.408v with 100% usage, but usually sits around 1.38v during gaming.

NeonCancerCandy · Jul 24, 2016

Jeff G said:
Ive noticed at 4.7 stable that most games dont utilize 100% cpu for any extended periods, so unless you're running a cpu intensive game chances are your gpu will be your limit before cpu (so you wont see much ingame difference between 4.5 and 4.7).
I saw a noticeable difference between 4.5 and 4.7 in benchmarks, but nothing in games.
My volts max about 1.408v with 100% usage, but usually sits around 1.38v during gaming.

i play a cpu heavy MMORPG but generally my cpu sits around 20-40% usage but the gpu is only at 55% usage

wingman99 · Jul 24, 2016

NeonCancerCandy said:
i play a cpu heavy MMORPG but generally my cpu sits around 20-40% usage but the gpu is only at 55% usage

For that GPU usage you could set your CPU stock clock and do fine.

NeonCancerCandy · Jul 24, 2016

wingman99 said:
For that GPU usage you could set your CPU stock clock and do fine.

the game is way more cpu intensive =/ like full scale fights with 100-200 people all fighting at once .

wingman99 · Jul 24, 2016

Just for fun have you tried the stock CPU clock to see how it runs your game, it is only utilizing 20-40% CPU utlization in gaming.

Kenrou · Jul 25, 2016

World of Warcraft will do that especially now that it gained 3 graphic levels above ultra settings. Normal questing, 5 man dungeons barely hit 30% CPU usage, but in a 20 man raid for example with dozens on spells and AoE effects going at the same time I've seen mine hit 80%+ on all 8 threads and the 980ti which usually doesn't even boost suddenly spikes to 70c+.

wingman99 · Jul 25, 2016

What CPU utilization do you have at stock clocks World of Warcraft?

Kenrou · Jul 25, 2016

Haven't been at stock ever since i got this CPU :rofl:

I'll try it next time i get a raid

wingman99 · Jul 26, 2016

It's a hobby of mine l like to see how real gains are made with my i5 6600k from stock 3.6GHz to 4.5GHz. in my applications. I wish you knew about world of Warcraft.

Jeff G · Jul 26, 2016

Are you looking for cpu utilization in wow on a stock 6700k vs an oc 6700k? It would only take me a minute to gather that if your looking for it.

wingman99 · Jul 27, 2016

Yes CPU stock verses OC utilization , thanks if you could.

Jeff G · Jul 27, 2016

wingman99 said:
Yes CPU stock verses OC utilization , thanks if you could.

I should have some free time later tonight, I'll let you know what I find!

OC i7 6700K

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