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8700K + H100i V2 High Temps, Please Help!

AJ5L1CK
  • 16 months ago

First, here's my PCPP link: 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.

Comments

  • 16 months ago
  • 1 point

I would check your cpu cooler cause those can do pretty bad after a while and if that doesn’t work check to make sure all fans are plugged in on motherboard and havent come unattached

  • 16 months ago
  • 1 point

Yeah I'm starting the RMA process now.

  • 16 months ago
  • 1 point

Hmm. I would definitely see about contacting Corsair to see about an RMA on the AIO. I run the exact same AIO and while my CPU is an i5-8600K and not an 8700K - I run A LOT cooler with just the thermal paste that is pre applied on the AIO and I'm overclocked to 4.7GHz on all cores.

I would say something is definitely wrong. Hell of a build by the way.

  • 16 months ago
  • 1 point

Yeah RMA is underway, hopefully it doesn't take forever lol. And yeah it was fun to build, thanks for the insight! Also, nice Fractal case, looks cool with your build.

[comment deleted]
  • 16 months ago
  • 1 point

That's pretty impressive!

  • 16 months ago
  • 1 point

Replace thermal paste maybe? Reseat the pump onto the CPU to ensure it's seated properly?

  • 16 months ago
  • 1 point

Already did that once as I stated in the post. I've started the RMA process for the cooler, figure I would rather do that than keep guessing lol

  • 16 months ago
  • 1 point

Have you cleaned the radiator for dust?

If air isn't getting through it's not gonna be doing the job.

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