Chosen Solution
I changed the HD in my iMac from an optical drive (because it failed) to a SSD drive, and the fan is always running at full speed. I did a google search and found some software that in the past has resolved the issue, but I cannot use it because it is from a 3rd party and El Captain won’t let me install it. Anybody have any advise on how to solve this fan issue?
The In-line Digital Thermal Sensor eliminates fan noise and maintains proper system fan control through the iMac’s System Management Controller. This innovative device is designed specifically for the iMac, requires no software hacks and ensures compatibility with Apple’s built-in diagnostic processes. https://eshop.macsales.com/item/OWC/DIDI…
