8700K + H100i V2 Cooler High Temps Please Help

[ASlic]

First, here's my PCPP link: https://pcpartpicker.com/list/WMM72R https://pcpartpicker.com/list/WMM72R

CPU is not overclocked.

So the PC was built around last July, with the mobo + CPU upgrade in December. Upon installation in December, the PC ran great. CPU temps were ~30-35C idle with a gaming temp of ~60-65C and a Prime95 stress test of around 85-90C. Then about two months ago (roughly mid August beginning of September) I noticed while playing Destiny 2 the temp was around 70-80C and fluctuated sporadically throughout playing the game. Also realized at this time that the idle temp was around 40-50C and Prime95 was 99C+. Ambient temperature during this entire time was around 20-23C and the PC is in an open area. My fan configuration is x3 120mm on the front pushing air into the AIO, and x2 140mm at the top and x1 120mm at the back bringing air out of the case. Ambient MB temp is normal. Decided to take the first diagnosis route and reapply thermal paste, using Arctic Silver 5. Reapplied, re-seated the AIO cooler, and the temps were completely back to normal! Idle was back to 30-35C, Destiny 2 was running at 60C and Prime95 was back to 85-90C.

Then two weeks have passed, and the temperatures are almost running as hot as before the thermal paste reapplication.

I currently have two working theories:

a.) AIO cooler pump is starting to go, however, the tubes seem to be fine (one warm, one cool) and the temperature in the Link 4 software does not indicate that the temp is hotter than usual or the pump is malfunctioning.

b.) Something is wrong with the CPU, however, all voltage levels seem fine and game performance is not affected during any of this.

Is there anything else it could possibly be? I just don't understand how after TP reapplication, the temps were fine for two weeks and then they were high again.

I appreciate any help, as this is starting to be frustrating.

[idata]

Hello AJ5L1CK,

Thank you for joining this Intel Community.According to https://ark.intel.com/, your Intel® Core™ i7-8700K Processor is running within specifications. This means that the temperature reported should not damage the processor or other components in your system. Keep in mind that the processor is capable of generating a fair amount of heat during stress tests or gaming sessions. Because you are running demanding games and applications, this behavior is expected.Now, even though most third-party applications report the processor temperature fairly accurately, we also recommend using our Intel® Processor Diagnostic Tool to report accurate temperature for your processor.https://downloadcenter.intel.com/download/19792/Intel-Processor-Diagnostic-Tool Intel® Processor Diagnostic ToolWanner G.Intel Customer Support TechnicianUnder Contract to Intel Corporation

[idata]

Hello AJ5L1CK,

Were you able to run the Intel® Processor Diagnostic Tool? Did it show different temperatures?To attach a file, you must click "Use Advanced Editor" on the upper right hand corner of the response box, then the "attach" option will appear on the bottom right hand corner of the response box.Wanner G.Intel Customer Support TechnicianUnder Contract to Intel Corporation

[AKayl]

Intel® Processor Diagnostic Tool isn't active with 8700K. I dont know why. Is there any 3https://www.petmalzeme.net/advance-kedi-mamasi .party software for this?

[idata]

Hello advancekedimamasi,

Thank you for joining this Intel Community.

Try using the https://downloadcenter.intel.com/download/24075/Intel-Extreme-Tuning-Utility-Intel-XTU-?product=66427 Intel® Extreme Tuning Utility (Intel® XTU) to monitor and stress your system.

• https://www.intel.com/content/www/us/en/support/products/66427/processors/processor-utilities-and-programs/intel-extreme-tuning-utility-intel-xtu.html Support information for Intel® Extreme Tuning Utility (Intel® XTU)

You can also check these https://www.intel.ca/content/www/ca/en/support/articles/000024102/mini-pcs.html Diagnostic and Performance Tools.

These links are provided as-is. Intel doesn't endorse or recommend any particular tool, software, or website. For use and support of any third-party applications, contact the owner.

Wanner G.

Intel Customer Support TechnicianUnder Contract to Intel Corporation