Intel Core i9 14900ks Overheating

[Clark77494]

I built a new PC last week as GROK AI recommended the Intel 14900ks along with an ASUS ROG Z790 Motherboard. It is maxed out with 192gigs of 5600 DDR5 ram and a 4TB T705 14,100MB/s M.2 SSD. The only problem is the CPU overheats. At first I thought it was because I was using an air cooled heatsink on the CPU with two 120mm fans. I upgraded to an H170i 420mm liquid cooler and still run into the same problem. I had to cancel a job this morning because the CPU got to 84c and had to send the job it to a cloud server which kind of defeats the purpose of spending 6 grand building a new PC. The temporary solution was to limit the frame rate on my NVIDIA 4090 card to 144 fps. Has Intel come up with a solution for this? Why is the CPU doing the heavy lifting when the 4090 GPU is supposed to be doing most of the work?  

[Norman_Trashboat]

84C is far from thermal throttling. TJMax on that chip is 101. You're fine.

[SmartOne_2000]

Also go into your BIOS and implement Asus's implementation of Intel Default Profiles. My z690 TUF Gaming has them as performance and Extreme. Either way, they will limit your clock speed to ensure a power Intel's new recommended power dissipation specs and a few other things.

With MCE turned off, my bios also has an option to limit temperatures to 90C. Then it throttles the CPU to keep it at 90C or lower... this is its own version of power mitigation. Both options work well individually or in tandem together.

Lastly, consider using Honeywells' PTM7950 phase change thermal pad for your CPU. It remains solid up to 40-45C or so and then becomes liquid above that, cooling down the hot CPU quite substantially. Read up on it from Linus Tech Tip and other well known YT reviewers.