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Hi,
Since installing Catalina this morning, my fan (2013 MacPro) is running at full speed continuously, has this happened to anyone else yet?
Ditto! After verifying all my applications were working properly, I restarted the computer which slowed the fans. Right now, Time Machine is backing up 70GB of data and the fans have quieted, but the MacPro is hotter than normal.
If the problem persists tomorrow I plan to call Apple & will post an update.
Thanks for your reply horsecrazy...
I don't know whether this will help you but I have just discovered that my "Kazoo server" was not behaving well. System Activity pane showed this to be hogging the system. I de-installed and got a new one from Linn.
During the installation process, Catalina was asking for Kazoo to have access to ssd's/disks that it should not be using, so as I was asked so I prevented the app from this access. There has been no problem since, fans are back under acceptable system control. This is not a Catalina issue, what seems to have happened was that the existing installation had assumed that it did have access... Even to non-existent volumes... e.g. a network drive? There are no network drives on my system, the network which is wired, contains Apple TV, Panasonic TV, MacPro, Linn Majik streamer, and a set top box, no other hard drives.
I think that Kazoo was polling a line which gave no reply, since there is nothing there, and that caused overheating, which in turn caused an over-active fan.
But just an informed guess.
Yup, mine's done exactly the same, late 2013 MBP Retina, 13".
Checked the Activity Monitor, nothing suspicious in there, in fact all apps are single-digit %-age utilisations.
Mine seems to kick in with a period of inactivity, ie, rarely (if ever) will I be using it and it'll ramp up the fans, unless I'm watching video content. The fans only seem to kick in either just before a screensaver event (and it prevents it going into screensaver), or something crazy like in the middle of the night. Not at all worrying, having a laptop that's going mental downstairs, potentially with an overheating issue, while the family is asleep upstairs.
Have closed down all the apps, one-by-one - I thought originally it was a Chrome issue, but nope...neither is it Outlook. Interesting comment above re Dropbox - I'll give that a go later.
To date, the only way to quieten it, is a reboot with a PRAM reset. SMC reset doesn't do it. Simply rebooting without PRAM reset also does nothing, it'll continue where it left off with the fans going crazy.
Planning a MacOS regression back to Mojave. There's nothing in Catalina that I need, it was only FOMO that caused me to "upgrade".
I swear, I'm done with Apple - so many issues across the dozens of devices we own as a family - I'm spending more time diagnosing, repairing or travelling to an Apple Store that I ever have done over the last 12/13yrs since becoming an Apple user. Ridiculous.
I tried this and it made no difference. I found that parallels toolbox was using significant energy and when I stopped it running there is still no difference. Same problem on MAC Mini and has only occurred since installing Catalina.
I would try a SMC-reset https://support.apple.com/en-us/HT201295
Check Activity monitor and look for high CPU%. I noticed mine was hot and found the Dropbox app that was OK in Mojave was using 120% CPU in Catalina. Deleted and installed latest and is all OK now.
Same issue here running HOT and SLOW...Checked the Activity Monitor and Mail is running at 240%??? Brand new 2019 Macbook Pro Catalina 10.15.1
Create a new admin account and set up your mail accounts in there and see if same happens.
My fan is running at full speed since catalina
