2011 imac 27" 32GB - final stage of 1TB + 2TB SSD upgrade (replaced HDD & optic drive). Also cleaned out the fans and case. Running 'SSD Fan Control' & 'Macs Fan
Solving iMac fan noise issue after HDD replacement - CrystalIDEA Blog
How-To: Now's the right time to swap your old iMac's hard drive for a fast new SSD - 9to5Mac
2007 iMac Fans Running Fast after SSD Replacement : r/mac
iMac Repair & Upgrade, Same Day Services
OWC DIY Drive Upgrade/Install Kits for Apple iMac Models
How to manually set your Mac's cooling fan speeds
Download free SSD Fan Control for macOS
EASY FIX!! Noisy 100% CPU FAN after upgrade to SSD, How To Fix It - YouTube
Macs Fan Control 1.5.12 Download | TechSpot
Solving iMac 24 loud fans after SSD upgrade - YouTube
Fan control in the new iMac Pro - CrystalIDEA Blog