Problem with temperatures i9 7980xe

[Rede]

Hi, I would like your advice on a problem that I have been having for months.
I have an x299 E-gaming II with an i9 7980xe with a kraken x63 (360mm) and Thermal Grizzly Kryonaut Extreme thermal paste and I can't find a balance between temperatures and vcore.
I performed the delid with thermal grizzly liquid metal but the temperatures are very high, in idle at 2.6 Ghz with vcore 0.750V and llc in auto with cpu at 0% it oscillates between 55 and 62 degrees, as soon as I try to start a stress test (intel xtu, occt, cinebench) it goes into thermal throttling after 1 second and turns off (I limited the maximum temperature to 94 degrees to protect the cpu).
I also tried a noctua nh-d15 thinking that the aio was damaged but it is not.
I tried absurdly to bring it to 4.6 Ghz with 1,200/1,150 Vcore but it behaves identically. My question is the following, is there some setting that I am missing? The bios is the latest available.
Thanks.

[Antraxtacide]

Just to be clear on your CPU Configuration.  
~~  i9 7980XE  > Liquid Metal  > IHS  > Kryonaut Extreme  > Kraken X63 AIO Cooler  ??
It seems to me that the CPU tile is not making contact with the IHS ?   
What are the temperatures of VRM during idle ?       Are you able to measure the temperatures of each CPU Core individually?  

[Rede]

Thanks, yes the steps are the ones you wrote, to try I left both the original silicone and then removed it but it doesn't change.
The temps in idle of the vrms are about 32/35 degrees, while in full load about 42 maximum. The temperatures in the photos I had to necessarily do with a fan on the side of the PC to avoid it turning off, so calculate 2/5 degrees more.

[Antraxtacide]

There seems to be something very wrong here.  Does your  AIO Cooler get hot?   You could try disabling SVID.  All I can think of is there is some physical damage to the CPU.    Maybe the IHS has some concavity - I couldnt say without visual inspection sorry.

You can disable Hyper Threading,  Set AVX offset to 10,  Vccin should be about  1.9v  
VID at 1.2v for 4.6Ghz seems right.   Uncore (cache)  28x  1.2v     You could try disabling some cores and see if that helps.. 

[Rede]

At this point I also think that the ihs is ruined. I ordered a custom copper ihs from a company that will be ready in a week. In the meantime what I did just to understand was to disable 16 cores out of 18 and set them to 2.6 Ghz and indeed the temperature remains stable at 60 degrees (I know it's a lot). As soon as that part arrives I will try to set everything you recommended and I will update the answer. For now thanks for the advice.

[Antraxtacide]

I look forward to hearing how you go with it  😃     Try to send some photos of the IHS and CPU Socket before and after your maintenance.  I hope it goes well for you.  I hope the Liquid Metal hasnt caused any issues for your CPU and Motherboard.   Good Luck! Almost shiny enough to shave.

DONT BE FOOLED, THIS IS AN ASUS MOTHERBOARD xD

[Rede]

Thank you, the IHS in the photo looks really nice. In the end, you won’t believe it, but the problem was the glue used to hold the IHS in place. It basically locked the CPU in the socket, causing the IHS to warp and not make proper contact with the chip underneath. After removing the old glue and reapplying liquid metal, it now runs much cooler. It still gets pretty hot, around 80–90 degrees, but it’s overclocked to 4.6 GHz with 1.2 Vcore. I’d say I’m satisfied. Once the copper IHS is ready, I’ll try installing it, but I don’t think I’ll gain many degrees.

Without opening a new post, I wanted to ask something: while testing various voltages with XTU, I accidentally set 1.8 volts instead of 1.18 (I know, it was stupid not to double-check), and I started the stress test. Obviously, it only lasted maybe 10 seconds because the PC went into protection mode (maximum temp was 94 degrees). Could something have been damaged? The PC seems to work without any issues

[Antraxtacide]

I do believe it is possible to cause damage to the Motherboard and/or CPU if  1.8VID is set without proper cooling and safeguards in place. I think those who set these voltages, do so with Liquid Nitrogen, and keep close measurements on voltages/temps.    The CPU will draw as much power as it is able to depeding on the work load.  Im not 100% sure of your setup so it is difficult for me to say where to improve.   You will want a pretty beffy water cooled system to deal with the temps the 7980XE pumps out. 

[Rede]

I figured that the CPU could get damaged, but fortunately, mine doesn't seem to have suffered any harm. With a 360 AIO and the maximum limit set to 94 degrees, it shut down immediately. My intention was definitely not to set it to 1.8 V; it was an oversight. Thanks for the diagram, I'll immediately change the jumper to prevent over-volting the CPU in the future. I don't know why it was set to active in the first place.