Intel Core i9 14900ks Thermal Throttle

[AliAsad]

Hello Intel Support team,

I've recently purchased intel core i9 14900 KS and am using it on my ASUS Rog Maximus Hero Z790 Motherboard. Ever since I've purchased the cpu i've been struggling with lot of stability  issues. I've followed intel recommended settings for bios, and have installed latest bios 2404. Still it didn't help much, I've ran Intel Extreme Utility Test too and it shows CPU Thermal Throttle message where I can see the CPU temprature rise up instantly beyond 90 C within span of few seconds of initial test run. I don't know how to fix this issue, as i have applied every possible solution available online. Please help me, thank you. 

[t00nish]

I'm having the same thermal issue with my 13900 i9. I'm just idling on my desktop with no applications running; I'm hitting 100c. When I'm in the bios, I hit over 90c. It doesn't make any sense. I've tried a ton of different troubleshooting steps online, but nothing has fixed it. I'm close to changing over to an AMD chip since I had no issues with that chip.

Any help would be highly appreciated, though I've already received a return label for the CPU in my inbox. Yes, my CPU cooler and thermal paste are installed correctly. 

[CoolBook]

There does not appear to be a cooler attached to your CPU. This judging from your screenshot.

I think there is an airgap between the IHS and your cooler.

Have a look at the thermal paste. Is it squeezed into a thin film, or is it still thick?

[Grimshadows]

I know you said you have a cooler and thermal paste, but I believe you have a real problem there with effective cooling.

Lots of coolers are nice, and worked well for a few different sockets. LGA 1200 and LGA 1151 had a Z-height of 7.31mm - 8.25 mm, while LGA 1700 has a total Z-height of 6.53mm - 7.53mm. Using a Cooler from older sockets is possible but no optimal without new screws to change the Z-height of the cooler so that it can lower and maintain intel spec pressure on the heat spreader.

Many of coolers have a hard stop mechanism built into the screws to prevent the end user from overtightening and destroying the motherboard/CPU/Socket, so they will tighten and come to a stop; but the cooler is still floating above the CPU or not putting enough pressure on the heat spreader. Lowering the Z heigh is important. its almost a 1mm difference once you account for manufacturing tolerances.

You can verify this (advanced, please read up on doing this) by removing the mounting bracket from the cooler or the screws. Apply thermal paste, and place it on the CPU, then boot to bios, apply some pressure with your own hand and you will see temps drop drastically if it is a mounting issue. If you see temps dip into lower ranges, you have a mounting issue.

Lots of cooler manufactures made screw and bracket kits available for very cheap or free, to deal with the LGA 1700 Z height.