Question CPU Running Hotter than on Identical New Builds - Replaced Most Everything and Still No Idea Why??

[JJ65]

Would appreciate suggestions from SMEs per the subject.

3 of us built an identical new builds:
GIGABYTE Motherboard: Z790 AUROS ELITE AX W/1700 & DDR5 SUPPORT
CPU: i9-13900KF
Memory: VENGEANCE® 32GB (2x16GB) DDR5 DRAM 7200MHz C34
CPU Cooler: ARCTIC Liquid Freezer II 420 A-RGB
GPU: GIGABYTE Gaming GeForce RTX 4090 24GB GDDR6X
Power Supply: CORSAIR HX Series HX1000 CP-9020139-NA 1000 W

GIGABYTE, Intel and ARCTIC have all sent me replacements for their respective parts and my CPU continues to run hotter.
I have tested about a dozen ways to apply thermal paste and, it has made no difference.
All three of us built with same OS, and for only one application. We have compared side by side BIOS, OS, background software, etc. and mine runs hotter regardless.

I've spent 5 months painstakingly replacing parts, searching for answers and all I can use this build for is basic things only which I can do with $200 PC.
Any suggestions would be appreciated. Thank you!

 

[rgd1101]

hotter as in?
same bios version and settings?

 

[JJ65]

hotter as in?
same bios version and settings?

10c higher in general, but when CPU gets tasked, it spikes to max. I have the BIOS sent to throttle back at 80c otherwise it hits 100c. Same exact BIOS settings. We've reset to defaults and started comparing from there.

 

[rgd1101]

same case? fan?
all 3 pc in the same location?

 

[JJ65]

same case? fan?
all 3 pc in the same location?

exactly the same everything. Location of PCs are different states: Reno, Michigan, Texas. In case you are wondering, I keep my room at 72F and regardless of having the case side-panels on, same temps.

 

[TerryLaze]

10c higher in general, but when CPU gets tasked, it spikes to max. I have the BIOS sent to throttle back at 80c otherwise it hits 100c. Same exact BIOS settings. We've reset to defaults and started comparing from there.

If adaptive turbo is enabled it will reach 100 degrees under load, that's normal, you can turn it off if you don't want that.
You have to tell us the clocks and the power draw if you want opinions on if your system is running normally or not.
But at the end 10 degrees could just be silicon lottery, if your CPU needs a little bit higher voltage it will run hotter than your friends.

Cómo las tecnologías Intel aumentan el rendimiento de tu CPU: Intel

Innovaciones como la tecnología Adaptive Boost hacen que las CPU de 11ª generación sean más rápidas. Descubre cómo Turbo Boost, Thermal Velocity Boost y ABT funcionan en conjunto.

www.intel.la

Intel® Adaptive Boost Technology

Opportunistically increases all-core turbo frequency when current, power, and thermal headroom exists. Works below a temperature limit of 100°C.

 

[JJ65]

If adaptive turbo is enabled it will reach 100 degrees under load, that's normal, you can turn it off if you don't want that.
You have to tell us the clocks and the power draw if you want opinions on if your system is running normally or not.
But at the end 10 degrees could just be silicon lottery, if your CPU needs a little bit higher voltage it will run hotter than your friends.

Cómo las tecnologías Intel aumentan el rendimiento de tu CPU: Intel

Innovaciones como la tecnología Adaptive Boost hacen que las CPU de 11ª generación sean más rápidas. Descubre cómo Turbo Boost, Thermal Velocity Boost y ABT funcionan en conjunto.

www.intel.la

Intel® Adaptive Boost Technology

Opportunistically increases all-core turbo frequency when current, power, and thermal headroom exists. Works below a temperature limit of 100°C.

Thanks for the link and advice. We've established that BIOS settings and version are the same on the 3 builds. When Intel support replaced the CPU, I ruled out CPU related differences. Since two other identical systems run much cooler at top clock speeds 5.5GHz (in the 60sC vs 100C), we were initially focused on the cooling solution, but that got ruled out after ARCTIC replaced the cooler and I tested a several thermal paste applications getting the same exact results.
My BIOS doesn't have anything labeled Intel Adaptive Boost, but I will research for what may be the equivalent, although I'm still confused on why the other systems have the same settings with very different results.

 

[TerryLaze]

Thanks for the link and advice. We've established that BIOS settings and version are the same on the 3 builds.

Just to clarify, they all are the same as in you typed all values in by hand or the same as in they are all set to auto or default?

 

[JJ65]

Just to clarify, they all are the same as in you typed all values in by hand or the same as in they are all set to auto or default?

Both, we started with defaults and compared with same results. We then made one change to limit power to Intel POR on all three systems with same results. Since, I have additionally limited the highest temp on mine to 80C to save my CPU until I fix the issue. As of yesterday, I have also temporarily turned off Turbo Boost which limits my speed to 3.0GHz and keeps my temps at 50Cmax.