6700K temperature jumps

[AndrejF]

Hello, I have a weird issue with my 6700K. After cleaning heatsink and reinstalling it on my cpu, I have discovered during stresstest, that temperature of the cpu is jumping rapidly. In only one second it went from 35°C to 78°C and stayed there whole time. And same at the end of stresstest. Also Aida is showing cpu temp as 127, but cores and motherboard readout are showing 35°C at idle. My cpu cooler is be Quiet Shadow rock 2 and my motherboard is MSI Z170A-G45. I used in my opinion enough termal paste, and it was Arctic MX-4. 

 

Thank you for your opinions of cause of this.

[Imakuni]

5 minutes ago, AndrejF said:

Hello, I have a weird issue with my 6700K. In only one second it went from 35°C to 78°C and stayed there whole time.

Yup, electronics heat up in a matter of a second. That's the usual behavior: put up load and the temp will spike.

6 minutes ago, AndrejF said:

Aida is showing cpu temp as 127, but cores and motherboard readout are showing 35°C at idle.

Screenshots, please.

[AndrejF]

I know about that, but I have this rig for more than a year and I haven´t had such a rapid temperature increase and also such a high temps. I am always using same thermal compound and cooler. I was acustomed for about 70°C under load. 

[RS2007GOD]

That 120c+ looks.. Scary..

 

sorry no idea why its so high maybe a glitch.

[Imakuni]

1 hour ago, AndrejF said:

I know about that, but I have this rig for more than a year and I haven´t had such a rapid temperature increase and also such a high temps. I am always using same thermal compound and cooler. I was acustomed for about 70°C under load. 

Hm. Are the voltages the same as before? Especially if you leave things on auto, that can fluctuate and cause different readings

 

Did the ambient temps change as well? That's another biggie: people validate their OCs on a winter day, them comes a heat wave and now it's "OMG, MUCH HOT, SUCH WEIRD".

 

A different fan layout is also on the list. Say, you've plugged things in a different manner and now case fan speeds are not the same as before. And that also applies for the cooler. If it's not running at the same speed as before, kiss your previous readings a goodbye, for they aren't worth it anymore.

[Space Reptile]

the 127 is a false readout , if a sensor reads [null] it always goes somewhere in the realm of 120°c + 

[AndrejF]

Ambient temperature did not change, maybe one degree +/-. But I am seeing higher temps outside of the case. I know there is a lot of variables, so I will try to get custom to theese. But I surprised me, because now is everything on stock, and with same setup I used to run 4,5GHz stable and never got more then 78°C in load scenario.