Overclock I7 4790k

[Sioux_x]

I ordered - received today the Noctua NH D15 CPU cooler, it was very easy to mount it.
I never did overclocking before, for me is S. F. right now
Could anyone here with the same CPU and some Gigabyte motherboard, help me, please? My mobo is Gigabyte GA Z97X-UD5H
I attached here 6 printscreens
There are so many options, i'm lost
Would you please have a quick look ?
Thank you

https://postimg.org/image/v53aanvcl/

https://postimg.org/image/u81gfj985/

https://postimg.org/image/dzl8620dx/

https://postimg.org/image/hx8hvgn79/

https://postimg.org/image/ipb5unred/

https://postimg.org/image/mzptq8whh/

 

[||Console||]

change yellow boxs to manual
Set Clock ratio to 45



set cpu voltage to 1.3

 

[Sioux_x]

I OC to 4,5 ghz, tested for about 20 minutes, no errors ( i know, i should be testing more than 20 minutes)
Here is a screenshot
If I'd like to go to 4,6 GHz, what do I have to modify? I only changed the clock ratio to 45, and the CPU voltage to 1.3
Thank you very much

https://postimg.org/image/vdkbn4ad1/

 

[Tír na nÓg]

Try x46 with 1.3v. if not stable, increase vcore by 0.010v increment till stability is reached. If stable, shoot for x47

Edit: FYI, my 2 4790K's (de-lidded) were doing 4.9GHz with 1.39v. Slightly above average clockers though.

You should be able to get 4.7/4.8Ghz with 1.35v (conservative max vcore) if your temps stay in check (low 90's max).

 

[wingman99]

Looks like your I7 4790k is overclocking well.

 

[Sioux_x]

Another quick test with OCCT ( 20 minutes only ) with 4.6 GHz and 1.310 vcore

https://postimg.org/image/m7lbljwj9/

 

[Tír na nÓg]

I noticed there is quite a high max temp delta through the 4 cores (10°C+).

5/6c is common. 10c+ is either due to "not so great" mount or uneven TIM spread between the die andk IHS. No big deal though! And second option would need de-lidding and re-lidding using metal based TIM.

You are reaching the temp limit. You could use Asus Realbench to stability test the system: it runs 10c cooler than OCCT and is as demanding.

it seems that you have a good clocker in hand, and if your primary use is gaming, you are ok for a couple oyears at least!

have you tried 4.7GHz/1.31v yet?

 

[Sioux_x]

No, i didn't go higher than 4,6 GHz yet
But i will
Be right back, thank you

 

[Tír na nÓg]

When you reach your max OC, it will be time to work on cache (uncore) and memory tweaking

 

[Sioux_x]

i can't get it stable @4,7 GHz, but i'll keep trying
Tir na nog, would you please give more details about " time to work on cache (uncore) and memory tweaking " ?
Thank you

 

[Tír na nÓg]

You can overclock the cache (also named uncore) in the 4GHz+ zone with 1.2/1.25v. Memory can be overclocked as well.

But we need more info on your system (ddr3 specs).

 

[Tír na nÓg]

You can increase vrin to1.9v (stock is 1.7v IIRC). That helps stabiliy above 4.5/4.6GHz.

edit: uncore/cache is called RING on your mobo. Once you have found your max cpu OC, you can set the ring to 4GHz/1.2v (check temps as it impacts the thermal envelop) and go from there (either findbmax ring with 1.2v or find the lower voltage for 4GHz ring).

 

[Sioux_x]

Which vrin are you talking about ? VRIN EXTERNAL OVERRIDE ??
I have many , there.

https://postimg.org/image/rrfxk4vat/

https://postimg.org/image/5i20dkzud/

 

[Tír na nÓg]

There is only one, the one you named. Set it to 1.9v.

others a ring voltage. If you set it to 1.2v with a 40x uncore ratio (which is a bit confusing as it has 2 names in you bios: ring=uncore), set the offset to zero, or closest value (+ or - 0.001v I guess).

 

[||Console||]

You might also be having a problem hitting higher is your cache is @ the same speed as your core ratio . Goto Advanced CPu core settings and put it to 41-44x @ 1.2v might help you get 4.7 .
But there is nothing to sneeze @ with 4.6 you are right there with a 7700k for gaming .

 

[Tír na nÓg]

Console's right.

 

[Sioux_x]

I can't go higher than 4,5 GHz
With 4,6 GHz is unstable
Here is a printscreen
I will have to try as Console adviced.
Thank you

 

[Tír na nÓg]

You are on the edghe temp wise anyway. If you want to go further, it is either de-lid or water (best would be both:!).

Above 85c, on high clocks (4.5GHz+), I've noticed that Haswell/Haswell-E tend to get instable.

Eg:
4.6GHz/1.3v/75c, stable
46GHz/1.3v/90c, crash

ANd yes set your uncore/Cache to 4.2GHz

BTW, @4.5GHz, those CPU's are still beasts! IPC is still very good, even compared to last gen Intel.

 

[Sioux_x]

Excuse me, what is de-lid ?
I think i leave it as it is @ 4,5 GHz

 

[Tír na nÓg]

That is the process of removing the IHS (Internal Heat Spreader thee metal square protecting the die, the piece of silicon) and replace the TIM with, preferably, liquid metal one. That usually nets a 15 to 20c drop.

Edit: here's a link on how it's done by a forum member.
http://www.overclockers.com/forums/showthread.php/784685-Delidded-my-7900x-manually?highlight=7900x