Overclocking i5 4670k

[fAED11]

Hello! 
 

Today, I finally overclocked my CPU but I have some questions, even after my research. My current overclock is at 4.5GHz with a voltage of 1.26 (after 5 attemps with 4.6GHz). I tryed 4.6GHz w/ 1.27v (max I went) but when I run AIDA64 after 3m it reeboted so I lowered it a bit to my current stats. My motherboard is Gigabyte Z87-HD3, my CPU is i5-4670k. I use a air cooling which is the Cooler Master Hyper 412s. 

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In my BIOS settings I increased the vRING (I read that it helps to stabilize with CPU overclocking) to 1.15v, is that ok ? 

 

Also, my C3 power state and EIST are set as Auto, should I change it ? 

 

I enabled profile1 on Memory and turned something like ''time'' as: Quick

 

I can't find anywhere the button for 'Adaptive Mode' on my motherboard settings

 

Here are my 1st 30minutes stress test + temps:

 

Can you guys give me an oppinion on how should I put things right or leave like this? (I just noticed, that even though I drop de volts to 1.26, when I open the AIDA64 - CPUID there it tells me that the Core Voltage is at 1.28 !?)
Thankyou!

 

[fAED11]

Here is the pic with low temps: 

 

Is this my sweet spot ? 

[deathjester]

Hello! 

 

Today, I finally overclocked my CPU but I have some questions, even after my research. My current overclock is at 4.5GHz with a voltage of 1.26 (after 5 attemps with 4.6GHz). I tryed 4.6GHz w/ 1.27v (max I went) but when I run AIDA64 after 3m it reeboted so I lowered it a bit to my current stats. My motherboard is Gigabyte Z87-HD3, my CPU is i5-4670k. I use a air cooling which is the Cooler Master Hyper 412s. 

_____________________________________________________________________________________________________________

In my BIOS settings I increased the vRING (I read that it helps to stabilize with CPU overclocking) to 1.15v, is that ok ? 

 

Also, my C3 power state and EIST are set as Auto, should I change it ? 

 

I enabled profile1 on Memory and turned something like ''time'' as: Quick

 

Here are my 1st 30minutes stress test + temps:

 

Can you guys give me an oppinion on I should put things right or leave like this? 

Thankyou!

 

 

(I just noticed, that even though I drop de volts to 1.26, when I open the AIDA64 - CPUID there it tells me that the Core Voltage is at 1.28 !?

 

Votlage in a stress test goes up due to offset either built into the motherboard, or something you defined, or because you are on adaptive. You can see the offset in HW monitor under voltages. 

 

1.26v on that cooler is a little high but those temps aren't HORRIBLE if you are mostly staying in the 70's on Aida.  1.25v is usually what you want to stop at on a single tower air cooler. 4770k? even lower because it has more threads. If under adaptive, the MB decided how much it thinks the chip needs. It is far from accurate. You could lock the voltage with override and see lower max temps if your chip is 100 percent stable at 1.26v

 

C states? Depends on the the PSU you are using. Auto is usually not the highest c state (new Haswell ones). Google the PSU you have and "haswell ready" or "haswell compatible" and you should find out if you can up the C state. 7 something would be the highest. It isn't needed but it will save you a tiny bit on power.

 

Those temps are absolutely fine for gaming (they will be much lower). Rendering? run a cinebench r 15, and look at the spikes. That is about the max you will see in real world use. You basically don't want to be higher then the low 70's on any real use. Lower then that is just gravy. 

[fAED11]

I read carefully what u wrote and than I decided to lower the voltage from 1.265 to 1.240. At first, my sistem rebooted after 5 minutes of AIDA, than I upper to 1.245 which is my current voltage for my 4.5GHz. I'm doing the stress test now and it's running for 14m though  
My temps are stable under load » 63-74c where maximum registeres was 82/78/75/71c

So basically what ur saying is that I should not go further 1.25v due to my cooler ? Oh, by the way, my case is the Cooler Master 690 II Advanced.

I saw alot of guys who just went for 4.6GHz with the hyper 212 at 1.28/1.30v 

 

Thankyou!

[harrynowl]

With the haswells 4.2-4.4 seems to be the better overclocks, a lot of CPUs get to a point where they need a massive voltage boost that isn't worth it.

[fAED11]

With the haswells 4.2-4.4 seems to be the better overclocks, a lot of CPUs get to a point where they need a massive voltage boost that isn't worth it.

 

At the moment and like I said, I'm running it at 4.5Ghz with 1.245v with temps around 63-75c || I'm still doing the stress tests and its running for 36m till now and no bluescreens

You still thing that I should go for 4.4GHz and lower the voltage for 1.20v ?

 

Here is how it's going now:

 

[deathjester]

I read carefully what u wrote and than I decided to lower the voltage from 1.265 to 1.240. At first, my sistem rebooted after 5 minutes of AIDA, than I upper to 1.245 which is my current voltage for my 4.5GHz. I'm doing the stress test now and it's running for 14m though  

My temps are stable under load » 63-74c where maximum registeres was 82/78/75/71c

So basically what ur saying is that I should not go further 1.25v due to my cooler ? Oh, by the way, my case is the Cooler Maseter 690 II Advanced.

I saw alot of guys who just went for 4.6GHz with the hyper 212 at 1.28/1.30v 

 

Thankyou!

 

NP. People will often put that much on the I5 on air, but they don't render at that temp, and many are just posting benchmarks. 24/7? I wouldn't run over 1.25v on that cooler (you basically have same cooler as mine) unless you are just running that OC on games only. If you are in the low 60's in games? That is fine.

 

Slightly over 1.25 might be ok for winter and gaming. Summer? That will change. Maybe back off the OC a bit. People will refer to this as a "summer overclock". 

 

Different batches run at different temps as well and the I7 runs a little hotter then the I5. The key is, you don't want the cpu going much higher then 70C in anything you do a lot. If you do that and the voltage isn't crazy (as in close to 1.4 or over), the chip will last a very long time. Push 80C in real life applications/games (this excludes stress tests)? Chip isn't going to last nearly as long. 

 

I have gamed at 4.7ghz on basically same cooler as you at like 1.27v and 4.7ghz. The difference in almost all games past like low 4's though? Isn't much. The only games I noticed a difference in was Guild Wars 2 and Flight Simulator both of which are completely CPU bound. I will prob drop down to 4.3 in the summer time at 1.150v. 

 

To do 4.5 on single tower, single fan, air cooler with pretty decent temps? You basically won the silicon lottery. Many get stuck at 4.2, and some can't even do that on air. 4.3 on air is GOOD. 4.4 is excellent. That is a better overclock starting from 3.4, that many people get on their AMD 8350's (4 to 5ghz).

 

Anyways. Happy gaming and grats on the good chip.

[fAED11]

Ok, nevermind... after 45m of AIDA I run Intel Burn test... It last for 1 minute and than rebooted
I lower it for 4.4 at 1.20v let's see

[fAED11]

Ok, nevermind... after 45m of AIDA I run Intel Burn test... It last for 1 minute and than rebooted

I lower it for 4.4 at 1.20v let's see

 

Now it seems nice I think.

I run Intel Burn Test(5x) 4.4GHz at 1.20v seems ok now

[fAED11]

NP. People will often put that much on the I5 on air, but they don't render at that temp, and many are just posting benchmarks. 24/7? I wouldn't run over 1.25v on that cooler (you basically have same cooler as mine) unless you are just running that OC on games only. If you are in the low 60's in games? That is fine.

 

Slightly over 1.25 might be ok for winter and gaming. Summer? That will change. Maybe back off the OC a bit. People will refer to this as a "summer overclock". 

 

Different batches run at different temps as well and the I7 runs a little hotter then the I5. The key is, you don't want the cpu going much higher then 70C in anything you do a lot. If you do that and the voltage isn't crazy (as in close to 1.4 or over), the chip will last a very long time. Push 80C in real life applications/games (this excludes stress tests)? Chip isn't going to last nearly as long. 

 

I have gamed at 4.7ghz on basically same cooler as you at like 1.27v and 4.7ghz. The difference in almost all games past like low 4's though? Isn't much. The only games I noticed a difference in was Guild Wars 2 and Flight Simulator both of which are completely CPU bound. I will prob drop down to 4.3 in the summer time at 1.150v. 

 

To do 4.5 on single tower, single fan, air cooler with pretty decent temps? You basically won the silicon lottery. Many get stuck at 4.2, and some can't even do that on air. 4.3 on air is GOOD. 4.4 is excellent. That is a better overclock starting from 3.4, that many people get on their AMD 8350's (4 to 5ghz).

 

Anyways. Happy gaming and grats on the good chip.

 

Dude, thankyou for your replies!

I must tell you that now, I'm running it at 4.4GHz with 1.200v. I think I'll just sit here because it seems a very comfortable position so far.

[harrynowl]

At the moment and like I said, I'm running it at 4.5Ghz with 1.245v with temps around 63-75c || I'm still doing the stress tests and its running for 36m till now and no bluescreens

You still thing that I should go for 4.4GHz and lower the voltage for 1.20v ?

 

Here is how it's going now:

 

Well I run a AMD chip and I've not used intel since Conroe (c2duo) so I'm not the best to ask, but I don't think 0.05v is worth 100Mhz given how hot it runs.