CPU heat changes constantly

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Selmanoobaf

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Jul 11, 2017
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Hello everyone. I’m using 7700K with Asus Formula 8. My cooling solution is NZXT Kraken X62 AIO. When I monitor my CPU heat it changes every second like 20+/20- °C every second. When I recently opened PC I get a message which my CPU exceeded 80°C. Is it about thermal paste or I’m using wrong program ? Thanks for helps...
 
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aquielisunari

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Mar 31, 2011
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Which program are you using. Let's check my temps.. I always use at least two programs such as https://www.ccleaner.com/speccy/download and https://www.cpuid.com/softwares/hwmonitor.html
Temp._compare.png


They are showing similar CPU and GPU temps. If one had a major discrepency I would know to disregard that temp. and I would probably uninstall it.

Let us know which programs you're using. A screenshot helps. You can offer a link to the screenshot you upload or you can embed it here. Simply put you click on the Polaroid/pic icon above your reply box and paste in an url that ends with png, bmp, gif, jpg or other pic based url. http://www.tomshardware.com/faq/id-2580030/detailed-instructions-posting-images-tom-hardware.html

 
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Selmanoobaf

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Jul 11, 2017
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Firstly thanks for intense help. I've linked these two photos. I have to use both Corsair Link and CAM because of using RGB parts for each brand. As you can see CAM shows significant increase at second image when I've only opened Chrome. My suspicion began because of crazy like fan curve it speeds up immediately then stops some time like every 5 second so my case making significant noise. I want to give one more info which may help I've applied some Arctic MX-4 thermal paste even Kraken included some on it. So what's next step ?

http://tinypic.com/r/1howwg/9
http://tinypic.com/r/333vmmw/9
 
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GhislainG

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Jul 16, 2008
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I fail to see where the issue is; the CPU only is 45°C which is far from the 100°C throttle temperature. Does it get above 80°C while you really use your system? Stress test the CPU to see how hot it gets; you shouldn't be concerned by idle or low load temperatures.
 
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Selmanoobaf

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Jul 11, 2017
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So as I told, fan curve is very weird and e.g. yesterday I was only watching videos and CPU heat went up to 70C. That made me concern about it. It didn't went more than 90 even but I can't stand to this fan noise so I thinked that CPU had a heat problem. It changes every second so the fan curve reacts as fast as this and boom case is noisy as hell...
 
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aquielisunari

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Mar 31, 2011
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Uhhhh I'm not seeing an issue. I do see the 60C and that appears to be a motherboard spike. Momentary spikes will happen to both the CPU and GPU. The issue is sustained temps..

I'm curious what HwMonitor and HwInfor show for the temps.. II know you have to use Corsair's programs but still...

Too much paste can most certainly cause heat issues. It behaves like an insulator instead of a conductor when there is too much paste. Thermal compound, grease or paste needs to be applied in an even translucent layer. More is not better. I would try reseating your heatsink and cleaning off and reapplying the paste.

I can't see an issue just yet.
 
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Selmanoobaf

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Jul 11, 2017
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Well thanks mate, also you should probably saw that in CAM it shows 0 RPM Fan Speed all time I think its because of pump. But I'm still curious for stabling this fan curve. Is it because similar programs are used and may conflict each other ?
 
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aquielisunari

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Mar 31, 2011
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It might behoove you to get on the horn with Corsair and discuss your concerns. They are intimately familiar with the program and should be able to offer a more definitive answer and possible course(s) of action.

Behoove? Yep:D

After you reapply and reseat.

It's moments like this that I appreciate my 212 Evo. I look at my BIOS, MSI Command Center or a monitor and I can see its fan speed or I can take a quick look at the fan and see it running. It keeps my CPU nice and cool and it isn't noisy even if I apply a more aggressive custom fan curve. Whether it's a Kraken or a similarly priced H105 http://www.tomshardware.com/answers/id-3084719/4690k-reasonable-temps.html I've seen the issues which are a very small part of the big picture. My 212 Evo is appreciated and simple, if a lot bulky.
 
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GhislainG

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Jul 16, 2008
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Contact NZXT support and explain the issue; the fan has to spin fast enough to cool the radiator and at maximum RPM it may be very noisy (it isn't in some reviews while it's rather loud in others). You need to determine the reason why the fan needs to spin that fast; the cooler may not be installed correctly (I doubt that's your issue) or the pump isn't working as well as it should.
 
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CompuTronix

CompuTronix

Intel Master
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Nov 13, 2006
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Selmanoobaf,

Core temperatures increase and decrease instantly with changes in load.

Intel’s specification for Digital Thermal Sensor (DTS) response time is 256 milliseconds, or about 1/4th of a second. Since Windows has dozens of Processes and Services running in the background, it’s normal to see rapid and random Core temperature “spikes” or fluctuations, especially during the first few minutes after startup, which should eventually settle. Any software activity will show some percentage of CPU Utilization in Task Manager, where unnecessary Tray items, Startups, Processes and Services that contribute to excessive or continued spiking can be disabled.

6th Generation processors introduced "Speed Shift" technology in Windows 10, which responds much faster to changes in workload than "SpeedStep" due to having many more Core speed and Core voltage transition levels.

Since 7th and 8th Generation Speed Shift is twice as fast as 6th Generation, some users complain of Core temperature spikes which cause fluctuations in fan RPM at idle. Motherboard manufacturers are currently developing BIOS fixes that include separate SpeedStep and Speed Shift settings with more flexible fan curves and time delay options.

Spiking can never be completely eliminated, but it can be minimized. You may find a solution by experiment with different fan curves in BIOS. However, anything you can do to decrease Core temperatures will improve the situation, such as manually decreasing Core voltage (Vcore) in BIOS.

Here's the link to a 74 page Thread on Intel's Forums that's been running nearly a year concerning this problem: https://communities.intel.com/thread/110728?start=1095&tstart=0

Here's the operating range for Core temperature:

Core temperatures above 85°C aren't recommended.

Core temperatures below 80°C are preferred.

Core temperatures increase and decrease with Ambient temperature.

CT :sol:
 
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