CPU only one Core gets really hot?

[TechNICKer]

Hey Guys,

 

since two days one of my CPU Cores is getting really hot it always jumps to 100°C but all the others stay at a cool 50°C. 

This Problem occurred after i delidded my CPU. If you are wondering i had to delid my CPU because my CPU (all Cores) always maxed out at around 95°C. 

The Problem occurs in the most random moments, for example when i open google chrome it instantly jumps to 100°C and back down to 60°C. 

 

 

I think the problem is my mainboard but i don't have another one to test it.

Im planning on buying another one because the one i have right now is not the one intended to buy this one :D.

 

I have an I7 6700k and as a mainboard i have the ASUS Z170-K.

 

Hope you guys can help you.

 

TechNICKer

 

[knightslugger]

2 minutes ago, TechNICKer said:

This Problem occurred after i delidded my CPU.

Your IHS might not be on there straight. Did you remove the black sealant from the IHS and the PCB before reattaching it?

[TechNICKer]

7 minutes ago, knightslugger said:

Your IHS might not be on there straight. Did you remove the black sealant from the IHS and the PCB before reattaching it?

Yep i removed the black sealant from the IHS and the PCB.

And i think i got the IHS straight. You know i didnt really save on Thermalpaste.

 

Also i dont really want to reopen it. It was already way to stressful doing it once.

 

Probably interesting aswell: 

 

The one core never jumps above 100°C it always perfectly hits 100°C.

Edited October 30, 2017 by TechNICKer
Forgot to mention something

[knightslugger]

9 minutes ago, TechNICKer said:

You know i didnt really save on Thermalpaste.

what do you mean? you didn't use a liquid metal?

 

how did you reattach the IHS? Did you use a centering clamping tool?

[Fuzzybuddy1995]

If all other cores on your cpu are fine exept for 1 perhaps the ihs is not properly making contact with that cpart of the die. You may just have to delid it again and start over.

 

[Theguywhobea]

Maybe a bad sensor? Tough to verify that though.

[TechNICKer]

1 minute ago, knightslugger said:

what do you mean? you didn't use a liquid metal?

 

how did you reattach the IHS? Did you use a centering clamping tool?

Yeah i mean liquid metal.

 

and i used the delid die mate for everything.

 

Maybe i just have to verify it by myself by delidding it again...

[knightslugger]

4 minutes ago, TechNICKer said:

Yeah i mean liquid metal.

 

and i used the delid die mate for everything.

 

Maybe i just have to verify it by myself by delidding it again...

did you tack down the corners with some sort of adhesive? I used KrazyGlue. seemed to work well.

[TechNICKer]

5 hours ago, knightslugger said:

did you tack down the corners with some sort of adhesive? I used KrazyGlue. seemed to work well.

So i delidded my CPU again and found that i kind of made a mistake and the Liquid metal got all over the place.

I replaced it with new one and sealed it back again with adhesive. and now the temps are somewhat better. it now maxes out at 85°C so i think that one of the sensors is still bad.

But at least its not jumping to 100°C straight when i start Google Chrome :D.

 

Thank you for the help @knightslugger

 

It was a good idea to open it again and redo what i have done :D.

 

TechNICKer

----------

ok just tested for 2h straight and now its getting back up to 100°C so yeah i dont really know what the Problem is i just hope its a bad sensor.....

 

Edited October 30, 2017 by TechNICKer
Still not that great.

[knightslugger]

maybe apply a hysteresis (temp offset) on the core so it doesn't throttle. i guess at this point whats there to lose?