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Thermal sensor issue i7-7700k?

CK7
Beginner
694,956 Views

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?

1 Solution
RonaldM_Intel
Moderator
635,358 Views

Hello Everyone,

We appreciate the feedback you have provided, and your patience as we investigated this behavior. The reported behavior of the 7th Generation Intel® Core™ i7-7700K Processor, showing momentary temperature changes from the idle temperature, is normal while completing a task (like opening a browser or an application or a program).

In our internal investigation, we did not observe temperature variation outside of the expected behavior and recommended specifications. For processor specifications, please refer to the https://ark.intel.com/products/97129/Intel-Core-i7-7700K-Processor-8M-Cache-up-to-4_50-GHz Intel® Core™ i7-7700K Processor Product Specifications.

Most motherboard manufacturers offer customizable fan speed control settings that may allow for smoother transition of fan revolutions per minute (rpm). Please consult your motherboard manufacturer's manual or website for instructions on how to change default fan speed control settings.

We do not recommend running outside the processor specifications, such as by exceeding processor frequency or voltage specifications, or removing of the integrated heat spreader (sometimes called "de-lidding"). These actions will void the processor warranty.

Kindest Regards,

Ronald M.

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1,110 Replies
ASušt
New Contributor I
8,858 Views

No panic, just have put a little sarcasm in my post.

No, I haven't tried 15s.

It happens the way, that for example I start to click links or scroll a bit faster and spikes start to happen ~ every 1-3 second and I looks like the CPU temp is constantly high... so the fans still ramp up.

But I can't say, that under load the temp is stable. If It's e.g archieving a huge amount of data, then yes. Or a stress test.... prety stable, no claims.

As for gaming, if the load drops at some point, the CPU instantly "cools" down and fans will decrease their rpms until the next spike/load arrives. The load arrieves 10s later and fans will ramp up after the set delay. So in this case it's no the spikes that increase the noise, it's the "cool downs" that take the fans to lower rpms just for the second.

So what I'm trying to say: I don't see that more or less gradual temp change. Temp jump at every occasion. And the delay will only put longer pauses between "fan is going WHOOOOOOOO" ©cohr.

Previously I had 3770k, and It held the temp very stable. After exiting a game the temp droped slowly, not like now, just hit exit and already 20c lower.

Don't think I have to tell the whole story all over again....you all know.

It's just the different way for each of us to look at the situation.

As for me - I don't like, what I have paid for. If the new CPU (the one that i'll get after RMA) will spike, i'll do my best to go away from 7th series. If I find that 6700k (maybe someone can advice something different) won't spike - so be it. I'll even buy a 200$ liquid cooler to compensait the difference in performance from 7700k.

Yes, yes intel does not recommend.

But still. I'm not very happy with this cpu, so i'm going to be in an angry customer's role.

I'm not afraid that CPU will burn. To hell with it....it's on the warranty for 3 more years.

The point of c.loops is that the fans speed is controlled by the water temp, not the CPU temp.

And the water will definitely not spike xD.

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TGrab1
New Contributor III
8,858 Views

You definitely do not need a custom water loop. You can get buy on a 20 dollar H212 and be fine at stock clocks and even slightly past.

To go one step further if you were to delid the chip you could get a moderate OC out of for sure.

As to intel saying do not overclock.. they aren't saying not to, they are as they always have recommending against it.

If intel were to recommend overclocking they would also have to offer support to people who are trying to overclock. That would eat up way too much support time that is better spend on other things. This is why you always see them saying they don't recommend it. It isn't because you can't, but because they don't want to have to offer customer support to people having issues figuring it out or getting their OC stable.

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ASušt
New Contributor I
8,858 Views

The main protector of the innocent is here (no offense )

I have a 80eur. Noctua NH-U14S and 5x30eur. Corsair ML Pro fans, isn't that enought?

Please, be so kind, delid mine) the beer is on me .

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AElib
Novice
8,858 Views

As to intel saying do not overclock.. they aren't saying not to, they are as they always have recommending against it.

oh oh oh,he he he, please be realistic and live in this world.

they are as they always have recommending against it.

just tell me why Intel sells K series CPU if they are against OC, you can not sell K series CPU and then recommend such kind of BS because it dont makes any sense, if they are against OC what is the point of a K CPU?

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MW1
Beginner
8,858 Views

It's actually very simple. If you recommend something you encourage someone to do it.

If they recommended it they would have to honour RMA issues that involve damaged components, software corruption etc. No way would their lawyers condone such a responsibility.

However, they recognize we enthusiasts overclock, so they provide K series CPU's and overclocking insurance in terms of the Performance Tuning Plan.

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AElib
Novice
8,858 Views

and overclocking insurance in terms of the Performance Tuning Plan.

Exactly, If they really were against it they wouldnt offer the performance tuning plan but as we love money Intel does too, that said, you pay you OC, you dont pay and intel recommed not to.

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TGrab1
New Contributor III
8,858 Views

ZeoxZariX wrote:

and overclocking insurance in terms of the Performance Tuning Plan.

Exactly, If they really were against it they wouldnt offer the performance tuning plan but as we love money Intel does too, that said, you pay you OC, you dont pay and intel recommed not to.

Since you think this is such an unusual practice I encourage you to provide me a link to a company that recommends overclocking of their product. You can probably find a GPU manufacture doing so, but I want to see a CPU Manufacture who completely recommends overclocking their cpu.

AMD and Intel both offer processors that can be overclocked and lots of motherboard manufactures make it easy to do so. The thing is offering it, because you know people want that feature and then offering full support and recommending it are two different things.

All that being said intel isn't some big evil company you make them out to be. They like all companies make mistakes and sometimes go the path of most profit instead of best product. This sucks but is life with all these big corps.

Now have you reached out to intel? I reached out to them before I delid and they offered me a full replacement. I also was contacted by one from one of the many threads I have posted in about how losing warranty for delidding my chip over the issue was a pita. The one that contacted told me if I needed to replace my chip because it died early that I could still RMA my chip, but I would be forced to pay a $30 fee for it.

Now just because I was told that doesn't mean that will be the case for everyone, but at least intel is working with people on this. The investigation on the forums still seems to be underway and the response we received about 12 pages back was more a intel rep that just stepped in to say something and had no idea what he was getting stirred up in doing so.

So did intel drop the ball on this processor? Yes, they definitely skimped on the TIM and will end up paying for it in the long run.. at last amongst us enthusiasts. It is not doom and gloom end of the world though. Intel has always had good customer service and are also good about supporting their products. So if your cpu is operating over 80+C at stock clocks I would just RMA it. They even have an advanced RMA if you reach out to them for it.. that way you aren't without a computer for the 2 week turn-a-round of the RMA.

So now for the important part. This thread has really gotten off topic. It is here to help those with problems or to allow people with problems to report them. We are just flooding a useful thread with back and forth bickering now. So let us get back on topic and see if we can help each other for a change.

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ssote
New Contributor II
8,829 Views

TGrable wrote:

ZeoxZariX wrote:

and overclocking insurance in terms of the Performance Tuning Plan.

Exactly, If they really were against it they wouldnt offer the performance tuning plan but as we love money Intel does too, that said, you pay you OC, you dont pay and intel recommed not to.

Since you think this is such an unusual practice I encourage you to provide me a link to a company that recommends overclocking of their product. You can probably find a GPU manufacture doing so, but I want to see a CPU Manufacture who completely recommends overclocking their cpu.

AMD and Intel both offer processors that can be overclocked and lots of motherboard manufactures make it easy to do so. The thing is offering it, because you know people want that feature and then offering full support and recommending it are two different things.

All that being said intel isn't some big evil company you make them out to be. They like all companies make mistakes and sometimes go the path of most profit instead of best product. This sucks but is life with all these big corps.

Now have you reached out to intel? I reached out to them before I delid and they offered me a full replacement. I also was contacted by one from one of the many threads I have posted in about how losing warranty for delidding my chip over the issue was a pita. The one that contacted told me if I needed to replace my chip because it died early that I could still RMA my chip, but I would be forced to pay a $30 fee for it.

Now just because I was told that doesn't mean that will be the case for everyone, but at least intel is working with people on this. The investigation on the forums still seems to be underway and the response we received about 12 pages back was more a intel rep that just stepped in to say something and had no idea what he was getting stirred up in doing so.

So did intel drop the ball on this processor? Yes, they definitely skimped on the TIM and will end up paying for it in the long run.. at last amongst us enthusiasts. It is not doom and gloom end of the world though. Intel has always had good customer service and are also good about supporting their products. So if your cpu is operating over 80+C at stock clocks I would just RMA it. They even have an advanced RMA if you reach out to them for it.. that way you aren't without a computer for the 2 week turn-a-round of the RMA.

So now for the important part. This thread has really gotten off topic. It is here to help those with problems or to allow people with problems to report them. We are just flooding a useful thread with back and forth bickering now. So let us get back on topic and see if we can help each other for a change.

The real problem is Intel does not care about overclockers, we are far less than 1% of there total profit. We are just lucky they sell unlocked processors. Most people buy the i7 7700k over the i7 7700 for the increased clock speed.

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TGrab1
New Contributor III
8,829 Views

Oh I know we are the minority of user base which is why we are considered "Enthusiasts."

I don't see Intel dropping the unlocked multiplier chips though as that would pretty much give AMD the enthusiast crowd.

Also a little off topic, but apparently all the different tech sites have finally got wind of this issue. They have pretty much offered a incredibly biased and overdone response, but the issue is at least starting to get a little more coverage.

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MW1
Beginner
8,829 Views

Exactly, If they really were against it they wouldnt offer the performance tuning plan but as we love money Intel does too, that said, you pay you OC, you dont pay and intel recommed not to.

Well no, not really. It's not about Intel trying to grab your Performance Tuning Plan premium.

It's about the difficulties of "officially" advocating a potentially risky practice. Clearly they can't do that. Clearly that would put the company in a difficult position.

Intel don't "recommend" overclocking whether you buy their tuning plan or not. Even if you do buy the tuning plan they still don't offer you any overclocking support or compensation for issues caused by overclocking.

If Intel DID recommend overclocking, they would indeed also have to cover your loss of data and damage to components other than the CPU.

I'm surprised people don't get this and understand the difficulties in a corporate sense.

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idata
Employee
8,829 Views

TGrable wrote: "Since you think this is such an unusual practice I encourage you to provide me a link to a company that recommends overclocking of their product. You can probably find a GPU manufacture doing so, but I want to see a CPU Manufacture who completely recommends overclocking their cpu."

In fact ASUS do not recommend overclocking either, and nor do they provide overclocking support ... no doubt for the same reasons that Intel do not. An ASUS support technician even said to me that overclocking might void the warranty on my board. But of course they also sell their motherboards to overclockers, take part in overclocking contests, etc.

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TGrab1
New Contributor III
8,829 Views

MartinW1 wrote:

Exactly, If they really were against it they wouldnt offer the performance tuning plan but as we love money Intel does too, that said, you pay you OC, you dont pay and intel recommed not to.

Well no, not really. It's not about Intel trying to grab your Performance Tuning Plan premium.

It's about the difficulties of "officially" advocating a potentially risky practice. Clearly they can't do that. Clearly that would put the company in a difficult position.

Intel don't "recommend" overclocking whether you buy their tuning plan or not. Even if you do buy the tuning plan they still don't offer you any overclocking support or compensation for issues caused by overclocking.

If Intel DID recommend overclocking, they would indeed also have to cover your loss of data and damage to components other than the CPU.

I'm surprised people don't get this and understand the difficulties in a corporate sense.

I think it is because some of the users that are the most disgruntled also happen to be young. I think a good few people that are in this thread have read something about overclocking and wanted to attempt it, but without making sure they fully understood what they were reading.

Others wanted to build a nice gaming machine or machine in general and were probably new to it. So they expect to just buy the components and plug them in expecting everything to work correctly. The thing is some of these issues I have seen are easily resolved by a simple bios update.

So a good few of these issues are end user related and will need to be resolved on their end.

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ssote
New Contributor II
8,829 Views

TGrable wrote:

Oh I know we are the minority of user base which is why we are considered "Enthusiasts."

I don't see Intel dropping the unlocked multiplier chips though as that would pretty much give AMD the enthusiast crowd.

Also a little off topic, but apparently all the different tech sites have finally got wind of this issue. They have pretty much offered a incredibly biased and overdone response, but the issue is at least starting to get a little more coverage.

Most enthusiast don't overclock. Intel does not even have enthusiast in there literature. Intel couldn't care less.

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idata
Employee
8,829 Views

I want Intel Delid my prosessor or send me a new one that has better thermal paste in it! End of sad story!

Tnx god I have water cooling..

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AElib
Novice
8,829 Views

I have a better idea for you.

It won't take longer before Intel release a new i7 series CPUs, that said, wait and see what Intel will offer and if it's worth sell your 7700K and move on.

That's what i will do.

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TGrab1
New Contributor III
8,829 Views

The problem is if intel follows their normal path the next chip will be on a different chipset. That means you end up with a bigger difference to upgrade. You are now being penalized for having a used chip and MB. So after you calculate that all in to the equation you are out another 250-300 bucks for the new chip and mobo after selling your old setup.

Timoxi - I will say I was on custom water before I delid and the temps were still bad. I even went out and added an additional radiator to see if it would help.. no dice. After delid though i could feel the cooling power of that system kick in.

I should have realised there was an issue when my Delta T was pretty much constant between idle and full load before delid. Now it does go up, but luckily my delta T under full load is about 4C atm. Means I really went overkill with the 3rd radiator :-(. Hopefully my GPU block gets in soon and I can utilized it a little better :-D.

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DBux
New Contributor I
8,914 Views

One of the first things I did when I noticed this high temps, and after reading this thread, was to change my new (and good) wind cooler for another (and more expensive) water cooling, thinking that perhaps that wind cooler was not enough. And yes, my temps became better (between 5C and 10C depending task; I must say I also touched BIOS options), but I have still high temps (still 90Cs) and still spikes and annoying cooler sounds. This is not a solution, not possible to reach 90C with good watercooling (and NOT overclocking!!!).

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JFix1
Beginner
8,915 Views

Those spikes are starting to really get on my nerves.

It has become an annoying experience to work with my PC, heck even browse in the internet or watch videos. Hearing my fans go full speed every couple of seconds really takes all the fun. As great as the performance is, I'm really thinking about doing a RMA, maybe a new CPU doesn't have this problem.

I had a chat with the Intel support. They don't quite understand the problem as it seems. Here is the conversation.

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DBux
New Contributor I
8,915 Views

All people here are guessing time ago that this 'Intel's two month silence' means that, for them, this is not an important issue at all (what a surprise, and dissapointment too). If temps are under official max. 100C then there is no problem with CPU. But damn, this approach is wrong: we are not complaining about high temps (only), but about non tolerable temp spikes that drives crazy our cooling systems (and probably shorten CPU life time). And I repeat: a lot of us are speaking before overclock.

LRibe2
Novice
8,915 Views

Hi again guys.

Just wanted to say one thing.

Why are we all complaining about spikes and temps when we already know that this is CPU's normal behavior?

Intel already said that 80C + it's a normal temp reading under stress tests with AVX instructions or high OC.

Look at these example:

Skylake: i7 6700K - Tcase max temperatures: 67C - These means that Tjuction max temp is about 72C. So, these CPU must never go above 67C

Kaby lake: I7 7700K - Tjunction max temperature: 100C - These means that Tcase max temp is about 95C. So, these CPU must never go above 95C

Having a 25C difference between them and if motherboard manufacturers keep fan settings the same for both it's normal that on kaby lake fans go crazy because of higher temperatures and short spikes.

About the spikes:

If Kaby lake is supposed to work with high temperatures, a spike up to 60 or 65C, is that odd?

If a Skylake has spikes up to 45C isn't that worst than kaby's 65C spikes?

Intel is ignoring these thread probably because a lot of people already gave the answer, this is Kaby lakes' normal behavior. No other I7 K processor works these hot. But if intel says it's supposed to work these hot, then what's the problem here?

Crazy fan speeds are not an Intel issue. That problem is a Mobo settings issue.

idata
Employee
8,915 Views

We are complaining because we are all coming from Intel CPU's that did not spike drastically at all, and that 1 second spikes from 30 to 65 degrees MUST have some knock on effect to the lifetime of the CPU. I mentioned before there are two issues, and we all have one or both - high temp spikes for minimal interaction, and higher temps than the 'average' (lets say roughly 70 degrees with an AIO) under load.

As mentioned above, this is not something Intel are admitting yet, and for the reasons I mention I suspect - any other device that heated during use to the extent that it doubles its temperature for doing something minimal, is not something that is judged in most peoples eyes as 'normal'.

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