Best voltage cpu core for 7700K overclock to 5.0Ghz

Johnny Shalos · Dec 23, 2017

I have asus maximus ix hero, i7-7700k with noctua nh-d15 and strix 1080.
In my bios setting the cpu core volt. is 1.114v (default), I change it to 1.320v straightforward without trying any other voltage input. Its seems fine so far, its running at 30c without running anything and around 50-60c when play games. I tested it with IntelBurnTest and prime95 without getting errors. My question is, do i have made a good choice to changed it straightforward without trying anything else or should have I changed it just a little bit above the default voltage ? Do i have a better temps if i change it to smaller voltage than 1.320v?
BTW I'm noob about overclock, I have never overclocked before and all bios settings is by following instructions of a youtube video.

sizzling · Dec 23, 2017

You should increase a little at a time. Ideally you want the lowest voltage for a stable overclock.

Johnny Shalos · Dec 23, 2017

sizzling :

I changed the voltage to 1.300v and got blue screen for first time in my new pc

Now i changed it back to 1.320v and its seems stable for now.

adamscurr · Dec 23, 2017

You very well might have hit the nail on the head with your initial guess to put it up to 1.32v. It would be the exception, but not the rule...

I would say if you are stable and your temps are good, let it ride. If you want to test 1.31 you could, but I don't think it would make a huge difference...

Adam

Johnny Shalos · Dec 23, 2017

sizzling :

adamscurr :

For some strange reason when i changed it back to 1.320v, its not like before I got blue screen, I played cod wwii with 50-60 less fps. Its possible the blue screen to damage my pc ?

Johnny Shalos · Dec 23, 2017

ok now i changed it back to 1.320v because i tried 1.310v,1.315v and got blue screen. The problem now its not like before I got blue screen (5 total), I run a game with less fps and my cpu is 5v increased.

Its possible to damage my pc ?

adamscurr · Dec 23, 2017

You should not have destroyed anything at that power level... It's possible of course, but very, very unlikely... You might want to reset your cmos and start your OC from scratch...

Adam

Johnny Shalos · Dec 23, 2017

adamscurr :

I reset cmos and I configure again my bios oc setting and now its worse, its increased from 35v to 40v... because i forget to put input 2 to AVX and got one bluescreen I dont know what happens ...

maybe its not my day and its better to keep it without any overclock. I should have left it from begging to 1.320v without make any changes after... Did make any changed if i reinstalled the windows ? btw my pc is new (2 days used). BTW I forget to say, when i running any benchmark program to test it (like cine bench and intelBurnTest), the voltage goes to 80-90v it that normal?
Thank you for your answers and patience (with me

) so far.
EDIT: Now its decreased to 32c !

maybe its need time to be stable ?

volkgren · Dec 23, 2017

1.320V is quite low for 5.0GHz in my experience with mine. I would blue screen at 1.35V as soon as Windows booted.

Johnny Shalos · Dec 23, 2017

volkgren :

Do you have the same cpu, cooler and mobo ?

volkgren · Dec 23, 2017

Johnny Shalos :

I have the same CPU, i7-7700K and NH-D15S. My mobo is different, lesser quality. Plus CPUs can differ widely on amount of voltage required for them. Also, I've never used IntelBurnTest. I use Prime95 mostly and sometimes AIDA64. Prime95 Small FFT's for 20+mins is what I consider stable.

I ended up delidding mine and applying liquid metal. Before 4.9GHz 1.35V gave me around 87C+ after a few minutes of Prime95. Now it gives 67C.

volkgren · Dec 23, 2017

Johnny Shalos :

adamscurr :

I reset cmos and I configure again my bios oc setting and now its worse, its increased from 35v to 40v... because i forget to put input 2 to AVX and got one bluescreen I dont know what happens ...

maybe its not my day and its better to keep it without any overclock. I should have left it from begging to 1.320v without make any changes after... Did make any changed if i reinstalled the windows ? btw my pc is new (2 days used). BTW I forget to say, when i running any benchmark program to test it (like cine bench and intelBurnTest), the voltage goes to 80-90v it that normal?
Thank you for your answers and patience (with me

) so far.
EDIT: Now its decreased to 32c !

maybe its need time to be stable ?

I'm not sure what you mean by 80-90v.

Johnny Shalos · Dec 24, 2017

volkgren :

Johnny Shalos :

I'm not sure what you mean by 80-90v.

by running stress test programs like IntelBurnTest and prime95 it gave me 80-90v

adamscurr · Dec 25, 2017

I think Volk meant, we don't understand where the 80 - 90V number is coming from... Did you mean 80 to 90c on temp?

Adam

Johnny Shalos · Dec 26, 2017

adamscurr :

Yes sorry my mistake , i mean 80-90c on temp of the cpu, is that normal?

volkgren · Dec 26, 2017

Yes if you are at 5.0GHz and getting 80-90C on stress test that is normal. That is also a hot temperature and if you get that during normal use you should do something to lower the temps.

Johnny Shalos · Dec 26, 2017

volkgren :

Ok thank you , only in stress test, the maximum that i get while i played games is 60c

adamscurr · Dec 27, 2017

60C is great! I have a 6700k myself that is OC'd and I run similar temps while gaming and it has not died yet!

Adam

Best voltage cpu core for 7700K overclock to 5.0Ghz

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