Thermal sensor issue i7-7700k?

[CK7]

I have a brand new build; EVERYTHING NEW. i7-7700k is running at stock speeds. I have the RAM set to XMP for DDR4-2666. Motherboard is Asus Maximus IX Hero Z270.

I have found that the i7-7700k reports a momentary (a second or less) temperature spike +25 > 35 degrees Celsius anytime a program is opened, a webpage is opened, a background app runs etc. The temperature blip cascades through the cores in random order; not the same every time. This causes my heatsink fan to constantly cycle up and down. Temperatures otherwise report as steady, normal increases. Peak temperature under Prime95 blend test is 71 degrees Celsius.

Attempted solutions:

I have re-installed my heatsink and thermal paste with no change.

I have tried to manually set my fan speed in the bios. The only setting that avoids this issue is setting the temperature / fan at a constant (and loud) 80-100%. I've tried PWM and DC mode.

I have found a few user reports elsewhere on the web, all reasoning that it's just the way it is. I don't accept that. Opening a folder or browser should not spike temps +30 degrees. Not only is the fan cycling annoying, it puts undue stress on my fan; possibly shortening its lifespan.

What's the answer, if any? RMA?

[AKoch8]

> I don't understand why people buy a K version if they will run it at stock, it doesn't makes any sense.

MAN IT DOES NOT WORK AT STOCK WITH NORMAL TEMPS. ABOUT WHAT TWEAK YOU TALK ABOUT?

Ofcourse K version was planned for overclocking. But that at stock show 99C. So...

> you use such a Cooler for an i7 7700K

Early you said you do not know about that cooler anything. So first please read that cooler review before write something like "use such cooler". As i said before this cooler is overkill for i7. Its should be 200% enough. And 7700K sensors or other CPU issues does not related to that cooler at all.

[DBux]

You nailed it. WTH are you in this thread if you are happy with your 7700K?

[TGrab1]

creocoder wrote:

> I don't understand why people buy a K version if they will run it at stock, it doesn't makes any sense.

MAN IT DOES NOT WORK AT STOCK WITH NORMAL TEMPS. ABOUT WHAT TWEAK YOU TALK ABOUT?

Ofcourse K version was planned for overclocking. But that at stock show 99C. So...

> you use such a Cooler for an i7 7700K

Early you said you do not know about that cooler anything. So first please read that cooler review before write something like "use such cooler". As i said before this cooler is overkill for i7. Its should be 200% enough. And 7700K sensors or other CPU issues does not related to that cooler at all.

Length

132 mm (incl. fan)Width82 mm (incl. fan)Height145 mm (incl. fan)Weight625 g (incl. fan)Fan Speed 600 - 1,300 rpmAir Flowmax. 78.5 m³/hNoisemax. 25.4 dB(A)BearingSleeveConnector 4-Pin PWM Heatpipe4 x 6 mm Max. TDP160 WManufacturer Number True Spirit 120 M BW Rev. AEAN Code814256000901Order Number100700558

This is from their website... Notice the 160 W TDP

Going off my nice little TDP calculator we use for determining what is needed radiator wise for watercooling... I am showing that at 4.5ghz with 1.25 Vcore... this CPU produces 170-185 W TDP.

So that cooler isn't exactly enough to handle this CPU being pushed to those limits. The 6700 you talked about earlier for example is only producing 129-135 TDP at max stress levels at its stock speed.

That means there is about a 50 TDP difference between the two. So of course you aren't going to see the same temps... and the 7700k requires much more in the way of cooling than the older 6700. Just for the record the 7700K is about 37% hotter than the 6700 was.

Also the h212 evo has a max tdp of 180. So depending on the quality of the chip and factors of TIM etc... the h212 is right on the tipping point of being enough for a stock 7700k without seeing temps start to spiral out of control... some of this can be tweak by better airflow... better fans or a push pull setup, but it will only help a little if you are on the edge of having enough cooling capacity and will not make up a 20+ TDP difference.

[TGrab1]

DanBux wrote:

You nailed it. WTH are you in this thread if you are happy with your 7700K?

Some of us are here to try and help. Offer a different perspective or point out things we have seen work for ourselves and others.

Just because some of us challenge what people are saying doesn't mean we do not agree that this is something intel should be looking in to. It just means that some people who are posting issues are running here first thing to complain to intel because they found this thread... when in fact they can still do things on their end to improve the situation.

This chip is hot, the spikes are more a part of the architecture of the chip than a defect, but the heat these generate and the reasons why they are running so hot ARE of concern. Myself and others here are fully aware of this, but when someone for example goes on to talk about how great their cooler is and how that can't be it (without even telling us what they are using.) It just leads to more misinformation... I actually bring this up because in the post right above this I pointed out such a flaw... someone assuming their cooler is 200% more than enough when in fact it is about 20 TDP lower than what it needs to be to actually support the 7700k under load.

So back to the quoted text. Am I happy with my 7700k? Yes. I am not happy with what it took to make the chip perform up to my standards though which included a delid. That being said I still stick around and as stated over and over help people who have things they can still do to lower temps. So try to look at why some people ask these questions or challenge others. That is the only way to find out if they have actually done everything available to them to fix the issue first.

[AElib]

Sorry my bad because i didn't tell you that last night i read a few reviews about that cooler and honestly nothing impressed.

[AElib]

Are you talking to me?

Yes you do, sorry didn't see before the post where you mentioned me.

Btw, TGrable answered you question.

[AKoch8]

TGrable написал(а):

This chip is hot, the spikes are more a part of the architecture of the chip than a defect, but the heat these generate and the reasons why they are running so hot ARE of concern. Myself and others here are fully aware of this, but when someone for example goes on to talk about how great their cooler is and how that can't be it (without even telling us what they are using.) It just leads to more misinformation... I actually bring this up because in the post right above this I pointed out such a flaw... someone assuming their cooler is 200% more than enough when in fact it is about 20 TDP lower than what it needs to be to actually support the 7700k under load.

Please read i7 7700K specification: https://ark.intel.com/products/97129/Intel-Core-i7-7700K-Processor-8M-Cache-up-to-4_50-GHz Intel® Core™ i7-7700K Processor (8M Cache, up to 4.50 GHz) Product Specifications

From that document:

> TDP = 91W

[AKoch8]

ZeoxZariX написал(а):

Sorry my bad because i didn't tell you that last night i read a few reviews about that cooler and honestly nothing impressed.

So i7 7700K requires super impressive cooler for $200 or what? CPU TDP = 91W, mine cooler TDP = 140W. Whats wrong? :-)

[idata]

Creocoder, all you've displayed in this thread is that building computers is not for you. You should buy pre-built imo, you're not fit for this.

I've built 8 (yes, EIGHT) 7700K machines in the last few months now, all with great temperatures and no complaints from any end user.

[AKoch8]

RitchieDrama написал(а):

Creocoder, all you've displayed in this thread is that building computers is not for you. You should buy pre-built imo, you're not fit for this.

Any concrete points for that? Or you just said, because there was nothing more to say.

RitchieDrama написал(а):

I've built 8 (yes, EIGHT) 7700K machines in the last few months now, all with great temperatures and no complaints from any end user.

Did you ever read this thread? Topic not about something not working. Topic is about temperature spikes. Are you sure your end users live in LinX (linpack) and HWInfo opened for days?

Also that proves nothing. Probably it depends on party or something different. I'm happy you get 8 сorrectly working processors. But read this thread. Other peoples on typical configs have issues with temps.

[AElib]

Kinda ;-)

[AKoch8]

Oh, rubbish!

[AElib]

Whatever.

Because your Cooler it's overkill for an i7 that's why your CPU was hitting those nice temps.

[AKoch8]

For same reasons why other people of that thread CPUs hitting those nice temps. Because Intel fell in a puddle this time with their new CPUs ;-)

Did you read this thread? People have 90+C with water cooling on that CPU. Don't you think its CPU issue, not cooling system issue? :-)

[AElib]

Did you read this thread? People have 90+C with water cooling on that CPU. Don't you think its CPU issue, not cooling system issue? :-)

Of course i did, did you? because it looks like you missed i am one of the first users in page 1 or 2 who posted that said i know very well what is goin on in this Forum.

[AKoch8]

And you still think everything OK with processor?

[AElib]

Short answer, nope!

I never said it was.

[AKoch8]

I noted that Asus Z170 Gaming Pro CPU vcore was much more higher than on 6700 (especially on load). But I really do not care. I use latest BIOS with default settings. So I expect everything should works fine.

My personal opinion that its m/b vendors issue with vcore. As I know 6700/6700K/7700/7700K vcore should be 1.2. But as I said I do not care.

I think Intel should kick Asus, Gigabyte, MSI asses to fix problem on BIOS level. Because vcore 1.3 and up to 1.4 on load is abnormal and looks like it core of all issues. But... its Intel problems.

P.S. To be honest I do not want buy Ryzen. So currently I use my old PC and wait Intel resolution on that issue. But I can't wait long. If they fix that I'll buy Kaby Lake again

[TGrab1]

creocoder wrote:

For same reasons why other people of that thread CPUs hitting those nice temps. Because Intel fell in a puddle this time with their new CPUs ;-)

Did you read this thread? People have 90+C with water cooling on that CPU. Don't you think its CPU issue, not cooling system issue? :-)

Some of it is the TIM between DIE and IHS, some of it is the gap between Die and IHS because of uneven silicon application..

Then you have the other big factor which plaques the IT world. That is the end user. User error is also a huge part of these types of issue and unfortunately most people believe they could never mess up. If you read back there have been plenty of people who have received advice on how to help their issue and then after hopefully acting on it have not returned to this thread.

You are also refusing to acknowledge it might be someone on your end. You assume your cooler is mounted correctly, that TIM is properly applied, and that your cooler is adequate for the job.

You spent all that money on a new CPU so why not spend a little more on a new cooler that is up for the task? If it offers no improvement then return the cooler and RMA the chip as you have finally exhausted all means available to you.

If you build your own machine you have to make sure you are doing everything possible for it to work correctly. If you purchased it from Dell or any other brand name they would have made sure that it worked correctly and at safe temps. So if you are unwilling to do that on your own machine, then chances are you shouldn't be building your own computers.

Have you even looked over your bios? Z170 boards have been notorious for over-volting this chip. Have you updated your bios? Have you looked at the voltage you are pulling in windows? At 4.5ghz you should need less than 1.2v to run stable. So consider checking those settings too.

Lastly, stop being an ass to everyone in this thread that doesn't agree with you or challenges you to further review your current setup.

[TGrab1]

creocoder wrote:

I noted that Asus Z170 Gaming Pro CPU vcore was much more higher than on 6700 (especially on load). But I really do not care. I use latest BIOS with default settings. So I expect everything should works fine.

My personal opinion that its m/b vendors issue with vcore. As I know 6700/6700K/7700/7700K vcore should be 1.2. But as I said I do not care.

I think Intel should kick Asus, Gigabyte, MSI ***** to fix problem on BIOS level. Because vcore 1.3 and up to 1.4 on load is abnormal and looks like it core of all issues. But... its Intel problems.

P.S. To be honest I do not want buy Ryzen. So currently I use my old PC and wait Intel resolution on that issue. But I can't wait long. If they fix that I'll buy Kaby Lake again

This right here is your problem.

If you are building a custom pc, you need to expect to dabble in the BIOS. The days of never touching the bios are over. If you want a machine that requires no changes or tweaking then I suggest you buy a prebuilt machine with all that preconfigured. When was the last time you updated your bios? Why would you not set the vcore to a reasonable level and then blame intel for a 3rd party issue?

Maybe I have just been wrong about you this whole time and you are nothing more than a troll. I guess I will finally wise up and stop feeding you. Good luck with your 7700k.

[AKoch8]

> This right here is your problem.

No man, its Intel problem.

> If you are building a custom pc, you need to expect to dabble in the BIOS. The days of never touching the bios are over.

Who say you such rubbish? From what point such days are over??? From time when Intel decide release i7 7700K or what?

> If you want a machine that requires no changes or tweaking

Then buy quality components. Use "Load Optimized Defaults" with latest BIOS and in 99.9% cases you'll be fine. Before 7700K out it was 100% cases. So please stop talk unrelevant things.

If processor at stock (AT STOCK CARL!) requires manual set up of vcore in BIOS then something wrong there. Especially in case when CPU and M/B vendors said it 100% compatible.

> You spent all that money on a new CPU so why not spend a little more on a new cooler that is up for the task?

Do you really think I'm not try different cooler? If I'm silence about that... ;-) When I said mine cooler is 200% fine that mean my cooler 200% fine man. Mine general point to prove something wrong with CPU + Z170 at least with default BIOS settings.

> Have you even looked over your bios?

Ofcourse!

> Z170 boards have been notorious for over-volting this chip.

Who cares?

> Have you updated your bios?

Always latest version in first days its out.

> Have you looked at the voltage you are pulling in windows?

YES! My best games for years I love is HWMonitor + AIDA + LinX + linpack. So I know what I'm talking about :-)

> At 4.5ghz you should need less than 1.2v to run stable. So consider checking those settings too.

I know. But as I said before its 1.3 and up to 1.4 on full load.

But... do not touch ANYTHING in BIOS is principial question for me! Intell sell Z170 to ASUS? Yes. ASUS set wrong vcore in BIOS on Auto? Yes. Why I should care? Its pure Intel and ASUS issues!

Ofcourse I know how to fix issue. Setting vcore in BIOS to manual 1.20 solve issue complettely. But man, I'll never want tune up anything in BIOS for stock frequences. So I continue insist on fact that its still Intel problem.