Sonoma 14 Mac book constant fan and overheating

Why Apple doesn't test this software on current systems beforehand is unreal. My Mac is so hot, it will burn your skin. I can't imagine how much life I'm losing from my Mac due to the heat this update is causing. If I was conspiracy theorist, I'd bet that is their goal.....sell more computers. They could easily fix this but they don't. I dare Apple to provide a reasonable answer.

Hi! I'm facing this issue as well. My MacBook Pro 2019 since I updated for Sonoma is always overheating and the fan never stops. The following message is always showing up on my photos - Mac needs to cool down. Always this message is showing photos can't sync from iCloud. This is something that didn't happen with the previous macOS. It's frustrating!

I started experiencing the same thing with my 2019 MBP. Turned everything off that I could, put everything on low power mode, still goes to 170F when in screen saver mode. If left on battery overnight it's dead in the morning. I'm sure this heat issue is killing my battery too. Certainly something is running in the background causing this heat issues. Come on Apple, fix this.

Turn off the video on the wallpaper. It helped me.

Same issue with my M1 macbook pro. I noticed it started draining battery really fast and then I noticed it's getting super hot while I am not doing anything crazy there. This issue needs to be fixed ASAP!

MBP16 2019

Sonoma 14.1

Same.

Fan always on, CPU on overheated range all the time.

Just with 1 window open on Chrome. 🤦

Come on 🍏, you can do better than this!

No. Apple is doing exactly what they’ve been sued for many times. They are purposely putting out software to give the illusion that you need a new laptop. A top of the line MBP from even 5 years ago is still plenty of power and should last another 5 years minimum. There’s no need for an upgrade. There’s a need for good customer service for loyal customers who have ALREADY purchased laptops. Good lord you need some common sense.

Same with my iMac late 2019 ..

Did :

1.Boot with safe Mode

2.Replace my internal Fusion Drive with macOS Sonoma to an external SSD Drive.

2.Reset SMC twice.

3.Closed all Apps except one ..

1. Didn't add / install / change anything.

ALL WITH NO SOLVING THE FANS AND HOT iMAC ISSUE.

The only change was software macOS upgrade to Sonoma.

Sent Apple Bug feedback.

Same issue here. M1 Macbook Pro, 64 gb RAM. Fan is constantly one, even if I have no applications open. Driving me nuts. I went to the Apple store twice (I have Applecare) and they keep telling me "it's normal". I've had this laptop for a long time, I paid good money for this laptop and the fans were never spinning like this.

I'm both happy and appalled that this fixed the problem for me. Just changed the wallpaper to a static photo and the roaring fans stopped. How did this problem not get detected before Sonoma was pushed out? And how is it that Apple has not issued a fix for it since?

I agree with you.

Apple is not what it used to be. Shoddy software, exorbitant prices, zero-to-none meaningful tech support, and pathetic customer care.

I expect Apple to have tested their OS upgrade thoroughly before releasing it. But, sadly the trend is for Apple to put software out there and let the users deal with it while they count the money. For example, consider the accessories that you can buy for a fraction of what Apple charges elsewhere, from cables to chargers.

And this is coming from me: a long time Apple guy who started with a Mac Plus in 1980s!

I think the time to change is on the horizon.

2019 MBP, 13-inch, Intel i5, Quad Core: I had to turn screensaver off due to excessive heat and fan running constantly. Apple is competing with MS for minimally tested OS upgrades.

Even worst. I have no idea why they still don't solve the issue that has been there for a month, causing lot of inconvenience.

EmD2511 wrote:

I updated my MacBook to Sonoma 14 a few days ago. Since that time the fan runs constantly even when nothing is open. The battery obviously dies much faster. In the activity monitor it says CMFSyncagent is 92.3% and remains at the top of the list far exceeding any other activity. I did the whole shut down, hold option/shift etc for 7 seconds thing. Once restarted this stops the fan for about 5 minutes. I don't have many downloads on my Mac. I have a ton of storage. I am blaming this on the update and not sure how to correct it.

CMFSyncAgent "Communications Filter Synchronization Agent" is a macOS System File.

If shutting down and restarting does not resolve your issue

A SafeBoot Use safe mode on your Mac - Apple Support will sort many anomalies.

Log in and test, reboot as normal and compare your results.

Same. My MBP is now constantly hot. I even set it down for a few hours and picked it up just now and it was HOT. There's something wrong with this OS.. Or they just don't care about Intel Macs anymore.