My 13700KF is getting murderously hot


Catnip said:
I just lowered my Vcore to 1.15 Volts. The temps are way better, but my Passmark test fell 30,000 ponts on the CPU. I went from 93rd percentile to 55th percentile. So I guess it's back to auto Voltage.

I am going to try one of the CPU brackets that MysteriousBox recommended and see what happens.
Click to expand...
I just looked up the ideal voltage for your CPU. You may have lowered the voltage too much.

Gemini pulled this information together:

Stock / Auto Load: 1.35V – 1.45V+ (often runs too hot and hits thermal limits easily)
Optimized / Light Undervolt: 1.28V – 1.33V (ideal for lowering temperatures while keeping full multi-core boost performance
 

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Ghot said:
Good plan.
If the heat sink is full of dust, clean that first.

The following is one of, if not the best thermal compound...
pcpartpicker.com

Thermal Grizzly Kryonaut 1 g Thermal Paste (TG-K-001-RS) - PCPartPicker

Thermal Grizzly Kryonaut 1 g Thermal Paste (TG-K-001-RS)
pcpartpicker.com pcpartpicker.com

Thermal Grizzly Kryonaut has great reviews as well.
Click to expand...

It is very good performing paste but it pumps out pretty fastfast (the paste migrates from the middle to the sides) so it needs replaced yearly, maybe less. I switched to Noctua NT-H2 (which comes with that cooler) which performs a little bit less but doesn't pump out fast. I eventually moved to Thermal Grizzly Kryosheet, which doesn't pump out at all. It performs well and is very easy to apply (just drop it in).
 

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Catnip said:
The CPU fans are set at full speed. I am not partial to fiddling with fan curves. I just leave it running full blast. I can't hear it anyway.

I am using the original retention frame. I had an AIO, but it really underperformed and I got rid of it. I am going to try adjusting the voltages and see if that helps.

Funny thing is, I rattled the heatsink this morning and now my temps are lower. I checked yesterday and I thought it was solid (and it still is), but my idle temp has dropped 10 degrees. I'm going to tear it apart again. :(


That's the plan. If this cooler can't handle it, I guesss I'll have to get another AIO

I was using an old version of Passmark. The CPU test was the one that caused the high temps and throttling. The others were fine.


Thank you for all of the advice, everyone. A big hug to all. It's very much appreciated. Here is my plan of attack:

1. Redo the TIM material on the heatsink and reseat the cooler
2. Re-run the Passmark test and verify temps
3. If necessary, start the undervolt tuning
4. Repeat #2
5. If I can't resolve this, an AIO is in my future.
Click to expand...

I presume you are using the Intel profile. Undervolting by offset to the core voltage works well with that profile. Other methods faslsely trigger some of the other Intel protection methods like CEP, and can kill performance.

Once you tame the temperature a little, you can throttle your processor at a specific temperature in the in the BIOS. I have mine set to 85c. This is the Asus board so I am not sure the Gigabyte board has such a setting, but I bet it does. My 13900ks rarely reaches that temp on the latest passmark test or others and does not affect performance foe me. YMMV.

Good luck.
 

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PerpetualCycle said:
It is very good performing paste but it pumps out pretty fastfast (the paste migrates from the middle to the sides) so it needs replaced yearly, maybe less. I switched to Noctua NT-H2 (which comes with that cooler) which performs a little bit less but doesn't pump out fast. I eventually moved to Thermal Grizzly Kryosheet, which doesn't pump out at all. It performs well and is very easy to apply (just drop it in).
Click to expand...

Pumpout does not really occur on desktop type CPUs because the mounting pressure is high enough to keep it where it needs to be. It's more an issue for GPU or laptop where the mounting pressure is significantly lower.

Desktop CPUs are hardy, and I come from the Arctic Silver 5 days where repasting was practically unheard of unless you were one of the niche groups squeezing every last bit of OC. Noctua's paste is fine.
 

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