i5 7600k @4.8 Ghz temps. after overclocking

Native Text · Mar 29, 2017

Hello,

So, i have just upgraded to a new gaming rig besides the graphic card.

I am using a hyper 212x for my i5 7600k.
I overclocked my 7600k by using asus AI suite iii. At first i didn't want to overclock and i planned to overclock my 7600k manually, so i was just exploring this software Asus AI suite iii and it overclocked my 7600k to 4.8ghz.

I know that the kabylake runs hotter than the skylake due to the higher clock speed.
At Idle i am getting 42-44°c. So, i think my temps are too high at idle.
While playing games i am getting 64-68°c max @4.8ghz. Checked 3 games: witcher 3, DOOM and Resident evil 7 biohazard.
64-68°c while playing games @4.8 ghz is pretty much safe on a hyper 212x. But, that's not what worries me, i am worried about the idle temps which are too high and the sudden spikes while being idle or playing games.

So, now on to sudden spikes. While being idle at 42-44°c for a fraction of second the temps just spikes upto 55-60°c and then suddenly gets back back to 42-44°c the other second.
The spikes while playing games @ 4.8 ghz are pretty much the same, from 64-68°c to 75-81°c in a fraction of second and then back to 64-68°c the other fraction of second. It's not that the temp stays high for even a second. I am talking about for fraction of seconds.

I did stress tests too @4.8ghz using the hyper 212x for 4-5 times and the temps are between 79-83°c and once it spiked up to 85°c.

I am using Arctic Silver Ceramique 2 as my thermal paste and i have checked my 212x as well it is properly mounted on the top of CPU and .

Is there any solution to the idle Temps and sudden spikes or also should i be getting lower temps @4.8ghz while playing games on a 212x?

Thanks.

Balubish · Mar 29, 2017

For gaming those temps are at the edge but still fine. I wouldnt render videos at that clock speed cause it will probably reach around 90-100C° then.

And yes when OC you get massive temp spikes at that lvl, why many of us at that range choose watercooling to be sure it can handle this sudden temp change better.

Keep in mind ur CPU is now running around 35% faster than stock speed, why temps are reacting more aggresive.
Im actually surprised you got that high up with an Air cooler, not bad at all.
What voltage are you at btw?

Ecky · Mar 29, 2017

Your temps seem fine to me. Idle temps are largely irrelevant, and your CPU will not throttle until 100c. I'd be more concerned about the voltage being applied by auto overclocking, than about the temperatures you're seeing.

Native Text · Mar 29, 2017

So, yeah i just checked the voltage while doing the stress tests for 4-5 times again and here are the results:
At 100% load AI suite iii, cpu-z and hwmonitor showed exact same core voltage of 1.280v to 1.296v.
And VID of 1.320 to 1.325 in hwmonitor and coretemp. Mentioning VID as well in case if it helps.
This time i peaked 82°c- 85°c and once 87°c on 2nd core.

Native Text · Mar 30, 2017

Ecky :

Anything?

Ecky · Mar 30, 2017

87c is hot but not dangerous - what kind of load is this? Is it hitting 87c under real usage, or artificial scenarios it'll never see?

Most agree that keeping your voltage under 1.4v is a good idea. Voltage affects heat output more than clockspeed.

Native Text · Mar 30, 2017

Ecky :

At 100% load AI suite iii, cpu-z and hwmonitor showed exact same core voltage of 1.280v to 1.296v. @ 4.8 ghz, while doing stress tests.

And VID of 1.320 to 1.325 in hwmonitor and coretemp. Mentioning VID as well in case if it helps.

Peaked 82°c- 85°c and once 87°c on 2nd core @ 4.8 GHZ, while doing stress tests .
core voltage: 1.280v to 1.296v. @ 4.8 ghz (Stress tests).
VID of 1.320 to 1.325(Stress tests).

get it now?

thanks.

Edit: Stress tests were done by asus extreme tuning utility.

Native Text · Mar 31, 2017

So, yesterday i installed a rear fan as well in my case which is corsair 460x RGB, since it doesn't come with a rear exhaust and now i am getting 35-37°C at idle.
Haven't done a stress test after installing the rear exhaust, looking froward to do it today.

ouroesa · May 4, 2017

Hi,

I have the exact same CPU and cooler. Your temps seems fine and you are getting a decent overclock with very low voltages. I have to give it around 1.4v to get 4.8+GHz. My temps are very similar to yours.

The temp spikes are most likely to background processes using the CPU. With the small die of these CPU's, the temps will spike with every little bit of usage on the CPU. You can test this by starting and stopping stress tests while watching the temps. It should go up and down almost instantaneously.

Hope this helps.

bishopi5 · May 4, 2017

Its just skylake and kabylake, they love to spike to high usage for no reason, heat follows, its completely normal

Native Text · May 5, 2017

ouroesa :

1.4v, don't you think it's a bit high? and thanks for that great answer.

BigBoomBoom · May 6, 2017

1.4V is definitely high for daily usage, usually people do 1.35V and lower for 24/7 or daily usage. You have a very good chip but looks like the CM Hyper 212X hit the temp cap, so if you want to OC more (and you certainly do have head room here) you may consider a better cooler. But overall 4.8Ghz for Skylake is already high.

Jose Cardozo · May 11, 2017

i have a 7600k with 212 evo on 5ghz with 1.296 vcore, max 79 - 80°

i think i get the golden chip.

Native Text · May 12, 2017

Jose Cardozo :

Indeed a golden chip.

Bala_5 · Jun 3, 2017

I have a i5 7600k with noctua nh-u12s with push pull thermaltake riing fans and on 5ghz with 1.25 vcore, core 1-4 max 70 - 73°
CPU temp normally on 58-68°
Temperature provided is on stress test.

Is this okay for everyday use?

Note that my room have air conditioning

Update: I set vcore to 1.24 and that's the lowest mine can manage on 5ghz.
Core 1-4 max temp 62-67°

Native Text · Jun 6, 2017

Bala_5 :

You are perfectly fine. But the chip is insane, at 1.25v its reaching 5ghz and surely you do have more overclocking headroom.
Mother of chip.

89spacemonkey · Jun 14, 2017

Hey mate, I got the same CPU and OC'd it to 4.8 at 1.285v and I was about to ask about the spikes, it seems to be a normal thing then... My temperatures keeps at 24~26C idle and spikes up to 30~32 sometimes. I've noticed that it doesnt occurs while I am gaming. It never goes beyond ~57~58C while playing games like Witcher 3, Wildlands or Cities Skylines (which, btw, I noticed a considerable improvement compared to the stock 3.8 clock)

For this specific chip, is 30s ok for idle temperatures? I'm considering pushing it to 5Ghz

BigBoomBoom · Jun 14, 2017

Idle is irrelevant, what temp you get during stress test is important.

christianskovborg · Oct 6, 2017

Hi. I'm currently running my i5-7600k at 4.8ghz at stock voltage, idle temps are averaging at 43°c and full load with prime 95 v26.6 is < 75°c. The current cooler is Hyper 212 Evo. Should I upgrade my cooler to an AIO solution before pushing ithe chip further?

Also, does anyone have a good idea on how I can properly cool my SLI gtx 970 configuration? I've got the Gainward ones, non-phantom (http://www.gainward.com/main/vgapro.php?id=954). They're heating up pretty quickly, seeing temperatures at around 80 - 85°c on full load, which I'm most definately not comfortable with.

Signature818 · Dec 28, 2017

Those are too high temperatures for me, you can try to just stay at 4.7 Mhz with 1.200v. Hope this will help, maximum temp possible could be 65 degrees.

lelobrig · Jan 4, 2018

I have the same CPU:
i5 7600k......Now I'm running @4.9Ghz cooling by: CoolerMaster Lite120.
and my temps:
idle at 42-44°c
Gaming 64-75°c
Stress Test 79-85°c

The thing here is: I was only able to get that with a Vcore of 1.45v

My Motherboard is a MSI Z270 Gaming M6 AC.

So I lost in the chip lottery, and that's why I need more Vcore? or there is something I can do here?

Signature818 · Jan 30, 2018

lelobrig :

Have you tried lowering the voltage? Is it crashing already?

i5 7600k @4.8 Ghz temps. after overclocking

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