Question: iMac 27 late 2009 overheating critically
I have recently noticed higher noise with the fans of my iMac (couple weeks ago, all of a sudden). When installing the Macs Fan Control 1.4.10 I was really surprised, how high the temperatuers inside my iMac went. When the fan control in each part was set on "Auto", the HDD fan was running at its max speed of 5500 RPM. Even though the temperature did not go under 51C (i.e. still the full speed of fans - heavy noise). Other temperatures (CPU, GPU, PSU) a reaching even higher.
When I set control of the HDD fan based on CPU Core 1, the fan noise went down, however, the SSD temperature went up on 55C. Other controlls went down, though.
Which temperature values are most important? Is it better to have SSD temp higher ot the other ones?
iMac Pro, macOS High Sierra (10.13.3), 2,8 GHz Intel Core i7, 8 GB DDR3