Long-time lurker here, in need of some help!
I finally decided to upgrade to Catalina from Mojave yesterday afternoon (it seemed sensible for security reasons, etc.). Everything was going smoothly until a Zoom meeting in the evening, after which the fans (?) came on, and they have remained on since, making a very annoying (almost ticking) sound (video attached). Perhaps this is normal, but before updating I never noticed any sort of noise, full stop; the machine was completely silent. And I have been having regular Zoom meetings, so I don't that's the cause of the issue. It's also worth noting that the noise does not stop when the iMac is on sleep; it's continuous.
In an attempt to silence things, I have reset the NVRAM/PRAM (which worked for about 10 minutes), reset the SMC (no change), and booted in safe mode (no difference; noise present as before).
Has anyone experienced anything similar? Any suggestions/advice/reassurance would be greatly appreciated!
Thanks!
I finally decided to upgrade to Catalina from Mojave yesterday afternoon (it seemed sensible for security reasons, etc.). Everything was going smoothly until a Zoom meeting in the evening, after which the fans (?) came on, and they have remained on since, making a very annoying (almost ticking) sound (video attached). Perhaps this is normal, but before updating I never noticed any sort of noise, full stop; the machine was completely silent. And I have been having regular Zoom meetings, so I don't that's the cause of the issue. It's also worth noting that the noise does not stop when the iMac is on sleep; it's continuous.
In an attempt to silence things, I have reset the NVRAM/PRAM (which worked for about 10 minutes), reset the SMC (no change), and booted in safe mode (no difference; noise present as before).
Has anyone experienced anything similar? Any suggestions/advice/reassurance would be greatly appreciated!
Thanks!