Question Unusually high CPU temps and fan noises right after upgrading to the 22H2 build

[DuneStar]

I have a pretty expensive pre-built desktop that I purchased almost 2 years ago that has been running extremely well. It's very stylish and the fan noises were always hard to even notice even when dialed to extreme performance mode. This all changed recently when I downloaded and force-installed the 22H2 build of Windows 11. Somehow I wasn't able to install it from Windows Update so I got the installer from Microsoft.

Immediately after, I noticed a few things. The Power Management setting was changed automatically assigning a sleep timer and monitor turn off as part of their green carbon emissions reduction plan. No biggie as it was easy to adjust. The other thing I noticed is that when playing a certain game that I've been playing for over a year, the usually barely audible fans now sound like a jet engine getting ready to take off. The CPU temps are now around 80 - 90C which was never the case before.

I went to Device Manager to see if maybe there were some drivers that didn't install well with the update but I noticed nothing unusual.

Is this a known issue? Is there anyone out there that has heard of high CPU temps and fans going crazy right after the 22H2 build?

And please don't say that it's suddenly caused by dust or that the 22H2 update somehow magically caused the CPU paste to chip off needing replacing. Again, system was running fine and I've been having these issues right after updating to the 22H2 build of Windows 11. I had been running the previous build of Windows 11 without any issues for over a year prior.

My Specs:

Msi MEG Z490 Aegis Ti5 (MS-B931)
Intel(R) Core(TM) i9-10900K CPU @ 3.70GHz
32 GB @
- 16 GB DDR4-2933, Samsung M378A2K43DB1-CVF
- 16 GB DDR4-2933, Samsung M378A2K43DB1-CVF
NVIDIA GeForce RTX 3080
Latest GeForce Game Ready Driver Version 531.41
SSD, XVDD, 8.76 GB
Drive: SSD, Raid 0 Volume, 3726.03 GB
Drive: HDD, ST2000DM008-2FR102, 1863.02 GB

Windows Update does not find anything to update. A thorough Microsoft Defender scan has not found anything unusual.

Many thanks in advance!

 

[DuneStar]

I uninstalled MSI Center and went back to MSI Dragon Center and the weird 100 C temp jumps and jet engine fans went away. Auto HDR was fixed by turning off Use HDR in Display Settings and then turning it back on again. Launched the game and Auto HDR kicked in. The temps seem to also be stable now around 70-74 C load.

I don't think clean installing Windows did anything but add tons of work hours getting everything back to how it was. It seems to be a weird conflict with my system's fan control software and the 22H2 build. MSI Dragon Center seems to be the lesser of two evils.

 

[DuneStar]

UPDATING with a fix in case someone else with high CPU fans and temps after upgrading to Windows 11 finds this.

What solved it for me, and I can reliably reproduce this, is dialing down on the Processor power management in Power Options.

Go to Control Panel (or type in Power Plan in Windows search bar) > Power Options > click on "Change plan settings" for whichever plan you're currently using.

Click on "Change advanced power settings" at the bottom.

Expand "Processor power management" and set "Minimum processor state" to 5% and "Maximum processor state" to 99% in my case down from 100%.

Do a restart and afterwards go back to check the values you've just changed to ensure the system displays them. In my case, the Dragon Center software forces on the Ultimate Performance power plan after a restart so I had to drop down to 99% from 100% on that plan.

With these changes, I no longer hear the fans going crazy at the logon screen or during gaming and I don't notice a drop in processing power though technically there is a 1% difference. CPU temps during gaming are anywhere between 50 - 60 C instead of 90 - 95 C.