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cpu heating issue


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That is not abnormal for Cinebench R20 or R23 on Kaby/Raptor Lake CPUs when you run the test in "standard" motherboard configuration.  Most motherboards will either boost or remove the limits entirely unless you actively put them back.  That makes running anything with AVX or other similar instructions a high volt affair and high temps will result.  Fan speed and orientation likely have no impact on this.  When your temps hit the mark at the end of the first pass, it has not been long enough for the cooler to lose much ground in the watts in vs watts dissipated battle.  Those 30-60 second tests are all voltage and conductivity.  

 

Presumably you don't need to run CPU renders all day.  If you do, then you definitely need to tune the BIOS for the job.  I would run a different stress test without AVX to provide a comparison point.  Try the "bench" test in CPU-Z.  It is linear in load and should provide a steady CPU load temp to watch.  If you see CPU temps jumping around with this, then that suggests you don't have good physical contact or bad TIM application.  Most likely it's going to be steady and a good 15C cooler than Cinebench.  Also take note of the load Vcore reading while running either CPU-Z or R20/23.  That value gives a good indication of why things are they way they are.  

Edited by c-attack
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5 hours ago, c-attack said:

That is not abnormal for Cinebench R20 or R23 on Kaby/Raptor Lake CPUs when you run the test in "standard" motherboard configuration.  Most motherboards will either boost or remove the limits entirely unless you actively put them back.  That makes running anything with AVX or other similar instructions a high volt affair and high temps will result.  Fan speed and orientation likely have no impact on this.  When your temps hit the mark at the end of the first pass, it has not been long enough for the cooler to lose much ground in the watts in vs watts dissipated battle.  Those 30-60 second tests are all voltage and conductivity.  

 

Presumably you don't need to run CPU renders all day.  If you do, then you definitely need to tune the BIOS for the job.  I would run a different stress test without AVX to provide a comparison point.  Try the "bench" test in CPU-Z.  It is linear in load and should provide a steady CPU load temp to watch.  If you see CPU temps jumping around with this, then that suggests you don't have good physical contact or bad TIM application.  Most likely it's going to be steady and a good 15C cooler than Cinebench.  Also take note of the load Vcore temperature while running either CPU-Z or R20/23.  That value gives a good indication of why things are they way they are.  

thanks for the info 🙂

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