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?

[AElib]

i also note TGrable's consistent comments on poor 7700K thermal - as manufactured - deployment)...

Didnt you know that before TGrable posted it?

[RG9]

The changes I made in ASUS BIOS were (latest version, 0704):

AI OC Tuner - Manual

CPU Core Ratio - Sync All Cores

Core Ratio Limit - 47

DRAM Frequency - 2400MHz

DRAM CAS# Latency - 14

DRAM RAS# to CAS# Delay - 16

DRAM RAS# ACT Time - 31

CPU Core/Cache Voltage - Adaptive Mode

Additional Turbo Mode CPU Core Voltage - 1.200

DRAM Voltage - 1.2012

I did delid my CPU although it did not resolve the spiking issue. When I changed it to adaptive + 2400MHz memory that's when I noticed significant improvements. I originally have a Corsair Vengeance LPX 3000MHz 15-17-17-35 @ 1.35V but decided to run at those timings which passed memtest no problem. Leaving it on Auto wouldn't probably made a difference, but I would at least wanted to run CAS 14 to somehow compensate for the slower speed. I cannot boot with 1.35V, XMP or manual with this new BIOS.

ASUS recommends using RealBench but it doesn't push the CPU as much as OCCT does. In order for my system to run at 4.8 stable, I would need to set the voltage at 1.26 and it would spike to 1.28 during tests. At 4.7, the voltage would go up to 1.23. At 5.0, the system can't pass at 1.36V adaptive. All of these were done using OCCT for 10 minutes. I need to test these using RealBench to see if I can get a different result. I'm good at 4.7GHz, 1.2V adaptive.... for now.

EDIT: The test mode in OCCT is at Large Data Set

[JBárt]

Interesting.

Test passed with max about 50°C temp with 100% usage in Intel® Processor Diagnostics Tool. But if i start only e.g. Google Chrome, MSI Command Center or anything with low operation, cpu will jump random from idle ~33°C to ~45-50°C in one second and one second jump back. Sometimes is temperature as rollercoaster.

Intel Core i7-7700K 4.2Ghz/8MB

MSI Z270 GAMING M3

Kingston HyperX Savage Black DDR4 16GB(kit of 2) 2400Mhz

Noctua NH-U9S - paste NT-H1

Windows 10 Pro 64bit

[AElib]

Intel® Processor Diagnostics Tool it's BS, use a serious stress test software.

[JBárt]

Yes, you're right. Only I wanted show temp jumps. 100% usage by Intel® Processor Diagnostics Tool vs 20-50% usage any totaly "simple" programs. Is it normal jump from 33°C to 50°C and back? (33°C is exceptionally, cpu have 38-44°C in idle - sometimes jump to 50°C and immediately jump back)

I don't understand it.

When can we expect any information from Intel (message was pinned April 12 2017)?

PS Now AMD have very nice CPU but I still believe in Intel. I hope I didn't make a mistake to future.

[YRenk]

I guess , we made very big mistake ... I'm using this cpu almost month and seeing this problem everyday ! My temp doesn't fall under to 70 C and i already bored about this ! Ok , i understood that some problems with thermal sensor but when will u do something for this s*it !? When will intel tell us something about this or when will u fix this problem !? is my mistake what i bought intel cpu !? Tell us something and fix hurry this problem !!!!!!!!!!!

[AKoch8]

Vegito написал(а):

Ok , i understood that some problems with thermal sensor but when will u do something for this s*it !?

Who said you this is sensor issue? It may be much more horrible issue with processor itself. Do not need to calm yourself

[YRenk]

No my friend , it's thermal sensor issue. I'm playing almost all games and trying to strain my cpu but it is working well . Almost ten hours i used my computer but It doesn't give me any error . And I think , it is sensor issue. Just i want that my system work so fine , without any problems . I'm so wonder what will intel tell us about this or when will they fix ......

[TGrab1]

Vegito wrote:

No my friend , it's thermal sensor issue. I'm playing almost all games and trying to strain my cpu but it is working well . Almost ten hours i used my computer but It doesn't give me any error . And I think , it is sensor issue. Just i want that my system work so fine , without any problems . I'm so wonder what will intel tell us about this or when will they fix ......

From my own experience it has nothing to do with the sensor. The issue is the temps. The sensor is accurate and doing its job. You can tell this by the massive drops people are seeing by delidding their cpu which also increase the thermal efficiency of the setup..

So if the sensor was truly the problem you would see minimal difference before and after a delid. I will unfortunately have to disagree with you on this one. The sensor is fine, the problem is coming from other issues.

[YRenk]

Then what will we do with this cpu ? Or what intel planning to do with 7700k ? We bought so expensive cpu and choosed INTEL ! They must to say us something !

[TGrab1]

Vegito wrote:

No my friend , it's thermal sensor issue. I'm playing almost all games and trying to strain my cpu but it is working well . Almost ten hours i used my computer but It doesn't give me any error

Ok, I guess i need to play devils advocate here.

This is what you just said a few posts back... so why MUST intel do something when you have admitted there is no issue on your end other than seeing the temp at 70C?

You went as far to say it has to be a sensor issue because you aren't having issues like it is overheating. Which is true, it is not overheating as these chips have a 100C thermal limit before they even start to clock themselves down. So while there are things at play here that make this cpu run hotter than others it also has a higher thermal threshold.

Are you here to just be part of the bandwagon or is there a legit reason you are unhappy with the chip? Your temps are 30C under max (fine), you aren't having stability issues, you have had no issues with any error at all, and the only thing you have noticed is just a temp of 70c.

So while I agree there are issues that intel needs to work on.. I don't think you will see any real benefit from them outside of slightly cooler temps.. they wont be night and day different. At where you are now temp wise I would guess that if they fixed most of their consistency issues and went with a better TIM you MIGHT get a 5-8C drop.

I guess these posts are just starting to get to me. We have people with legit chips that needs to be RMA'd. We have people who just need to put in the effort to fix things on their end first and most of the time that would solve the issues. Then we have people who are just here to add their name to the list even though they are really not effected by the issues.

So until we can ignore the band wagoners and help resolve all issues on our own ends.. the legit group will not get the attention they need. The more people who come here saying they have an issue and that actually don't just makes it harder for those that do to get support. We all should first do everything we can on our own ends... and then if the problems persist post that information along with our test results to show that we HAVE done all we can on our end and the problem still exists.

If you have done something on your end to resolve the issue then POST what you DID. This not only will help others find a possible solution to their own problems, but it might also give Intel information on how to avoid these issues in the future. They can for example implement something that makes it easier to perform whatever function users are having issues setting up correctly.

What we need now is to turn this thread back in to one of useful information. Steps that were performed to no avail, steps that helped, or how the problem was resolved in the end. The more data, the more intel can dig into the issues people are having.

[PGarc12]

Thing is that we have two sort of what looks like "issues" here with the 7700k chips.

Some people are reporting overheat or higher temps than expected, which some of them are legit (as you say) while others are just people freaking out because this chip is hotter than others while can be completely normal.

On the other hand, and this includes me, there's a set of people who are afraid of the temp spikes. While the chip doesn't reach the limit and operate under normal temps (30 idle - 70/75 load in my case), what doesn't looks quite normal is that any small action will pop up the temps by 30ºC and then cooldown as fast as it went up. This causes eventually fans to work stressed even the load is small. This can be solved by adjusting when fans trigger, but is this the way it's thought to be?...

What Vegito is saying relies more on the second, same issue I have (or what I consider an issue, since it's not the pattern I'm used to see on other chips). The CPU works and performs well under the range of temps considered normals, but as the OP whenever doing any small action which shouldn't cause too much load, the temps raise by 25-30º instantly and same way, almost instantly they go down. Even on full load the CPU temps are more stable than doing random small actions.

[idata]

@TGrabel, You've been dismissing people's concerns and issues concerning the spikes for multiple weeks in this thread and it is the exact reason why it was created in the first place. Please look at the original post.

Here's the second sentence from OP's post to save you the trouble: 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.

This is what the majority of people have been complaining about throughout the thread. The sudden and extreme jumps in temps is annoying and unique to this chip, and we want a response from INTEL.

If you need to get your chip RMA'd, why don't you open a support ticket ? The chip hasn't been out for a year, you should be able to get a new one if you suspect your chip is defective. If you've delided your CPU and your warranty is void, that that's your own problem.

If you have any other problem with the CPU, why don't you open up your own thread about the specific issues you'd like to get intel's attention on ?

[AKoch8]

Vegito написал(а):

I'm so wonder what will intel tell us about this or when will they fix ......

How they will fix it? Magically repair sensors or what? Its hardware issue. They can't fix that. I sooo regret when I bought 7700K because I love Intel in past. I hate that day. My processor before that was 6700K. EVERYTHING WAS FINE! I will never make such mistake again. Will never buy Intel again.

[YRenk]

I just don't understand one thing, if it's problem by chips , why my temperature show 100 Celcius and i can still use my pc as nothing problems ? I'm turning on my computer , i make less my fans ( because of i can't endure this noises ), i'm using my computer 8-9 hours without problems . My motherboard or cpu must burn with such temperatures , right ? I'm already 2 weeks using my computer so . Intel must collect this 7700k if something problems with chips and give us new something as SAMSUNG did ( everybody knows what happened with Note 7 ) ...

[TGrab1]

Yeidan wrote:

@TGrabel, You've been dismissing people's concerns and issues concerning the spikes for multiple weeks in this thread and it is the exact reason why it was created in the first place. Please look at the original post.

Here's the second sentence from OP's post to save you the trouble: 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.

This is what the majority of people have been complaining about throughout the thread. The sudden and extreme jumps in temps is annoying and unique to this chip, and we want a response from INTEL.

If you need to get your chip RMA'd, why don't you open a support ticket ? The chip hasn't been out for a year, you should be able to get a new one if you suspect your chip is defective. If you've delided your CPU and your warranty is void, that that's your own problem.

If you have any other problem with the CPU, why don't you open up your own thread about the specific issues you'd like to get intel's attention on ?

I am not dismissing what people are saying. I even understand their frustration.

I am however challenging people who come here with temp issues. Read back a few dozen pages and you will see that a good portion of temp issues were things that could be resolved on the users end.

As for the temp spikes.. I think they are more related to the higher temp of these chips than most people thing. I can fire up this pc next to me which is running a 2600k.. it will also see the spikes the thing is those "spikes" are much smaller due to the lower temp range of the chip. The "spikes" are also more spread out due to the fact the 2600k is a bigger manufacturing process that was also soldered so the heat is transferred to my cooling solution much more quickly so I don't see the instant jumps in 10-15C.

Now that I have delidded my 7700k the "spikes" are much smaller. They are also slower to spike and don't instantly jump up 15-20C. Which again is because of the drastic measures I took to improve thermal transfer.

My point in this has always been that the "spikes" appear to be normal on an intel chip. They seem to be happening when the cpu changes state from idle to active. Intel could maybe add a ramp up time here, but then you would have slower load times and notice more latency between button click and open app.

I feel that if intel get the temps lower by improving thermal efficiency, then these issues would be less concerning or even noticeable for people. The only real reason it was noticed to begin with was due to higher temps of the chip making fans ramp up and due to the extreme roller-coaster look of a temp graph. If that temp graph was only moving 10-15C like other intel chips on those "spikes" i doubt many would find a reason to be alarmed.

[JBárt]

Bubble of "i7 7700K temp spikes" problem is little inflated (maybe). Now it is unnecessary to talk more about it. This discussion is now about Intel without Intel. There is any potencial problem (see pinned message from Intel on top in forum from 12 April 2017). I am only frustated from amount of information. Still no response from Intel in this time. Still no time estimate for info. And this topic is from 30 January 2017. That is reason why i am frustrated. Too negative. And if user have negative mood, then user will write negative reactions (and users will increasingly negative).

[PGarc12]

Intel is especially silent in this post... I've seen them answering on other independent ones about the same topic, last one said (on 18th April) Intel opened a investigation about spikes on Kaby Lake, this is ongoing and no further detais have been released. Well... that's actually what we know since the OP opened this post, and that's what is a bit frustrating... indeed, almost 3 months and not a single tip or clue on what's happening and if it has any chance of getting fixed or not.

I contacted my shop short after buying the rig (and CPU) and tell them this, pointing a link to this forums, and they granteed me an RMA if I want, but still, I'm not quite sure if the chip is faulty or not, and if so, if might be fixed or not. I haven't requested it yet (still got time for it), but I'd love to at lest have some clues on what could be happening to evaluate better the choice of refund and get another model, or wait until it gets stabilized if possible at all, via Intel or via motherboard BIOS updates (If they work together).

4 months from now with an investigation ongoing should bring more details than just "no further details"... even us - users - have brought more info about it than the own Intel and that's not fair considering the capabilities they have to test their own products. I'm sure someone knows if that spikes are normal considering 7700k is a hotter chip than other models out there or if definitely the behavior is wrong and we should expect something more similar to what other chips does (without such 30 degree jumps on low loads).

Knowing ways to try fix it doing deliding or tweaking voltages is nice as workaround, but shouldn't be treated as normal that everybody who purchase this CPU should know to do one or the other, especially considering one of these will void your warranty for sure and might end in a dead chip.

Hope Intel give us a bit more information to play with soon... at least to know what to expect in short/long term about this.

[ASušt]

About 7700k being a hotter chip - I had 2600k and 3770k with stock coolers, and they didn't spike at all.

Temp was gradually increasing/decreasing, no jumps.

The small stock cooler should have been ramping rpms like hell if there were any noticeble spikes.

CPU sate change will not happen, and core voltage will be constant in high performance power plan.

But spikes still present.

I think intel has saved too much this time on thermal solution...

Delidding is not a fix, it only softens the issue.

P.S is replacing a CPU a difficult and long process? I think I should give a try to another 7700k.

At least I will find out, is it my CPU spiking or all of them do.

I have read a lot of reviews before buying 7700k, and non said that it spikes, temp graphs were pretty stable.

Cuz I think benchmarks would definitely give a CPU a load, that would reveal temp problems.

[PGarc12]

Actually the funny fact is that 7700k doesn't comes with stock coolers (at least in Spain), it's just the box with the processor in it, that's all.

On benchmakrs I've ran with my setup the performance was good as well as temps, which were stable on high values (75º) which aren't actually even "that high" considering the CPU can go up to 90º and handle it well. Never seen it crossing the 80º value (haven't performed long stress tests neither), so that's good and stable.

But benchs give full load instantly and constantly which makes the CPU "hide" the temp spikes since it only will do 30º->70º/75º and once the bench finishes or stops temps go back to 30º. But this is actually normal, or at least what I'd expect from pulling 100% load on the CPU for a period of time. Weird things happen when the CPU is on Idle and suddenly any small action - even moving the pointer - rises the temp for 30º+ (up to 60 in my case usually) for just 1s or less before it comes back to regular Idle temp (30-35º). This makes me think on reviews this issue doesn't appear since usually they do benchs by either software which pulls lots of load constantly or games which requires constant amount as well.

You can only notice this spikes when CPU is Idle and then anything happens giving just slightly load to the CPU for second or less.

Also I'm not sure if all 7700k have this or if some actually perform well without spikes, but reading here, in tech forums and other places looks like most are affected by this (more or less depending on setup and OC settings - if apply - or deliding). So that's why I'm not sure to ask for an RMA with the same model... if I knew some doesn't does this, then I'd do for sure till I got a "normal" one, but I'm afraid I'd end up with the same issue once and once again.

[JBárt]

Maybe they can't fix it. But I want any information (from old pinned message from 12 May 2017). And I would like to have choose: I will return 7700K with temperature problem or I'll keep it. But I need information from Intel - positive or negative. Yes, they can lie. Money are money. But i hope i still can trust Intel.

I like Intel, but I want CPU which will long work. I don't want to change cpu in one year and with heat sink's ventilators because 7700k do term spikes).