Apple Invents a new Cooling Fan System for Future Apple Silicon-based Macs, especially a next-gen iMac - Patently Apple
iMac CPU Cooling Fan 27 inch A1419 A2115 2012-2020 (OEM) PA-1311-2A ADP-300AFT | eBay
Single-fan vs dual-fan iMac 24: M1 Apple Silicon's performance potential in 7-core base model spoiled by thermal throttling in benchmark battery - NotebookCheck.net News
iMac A1419 (27-inch Retina 5K) Fan Replacement - YouTube
hardware - Where to source replacement internal fans? (For a mid-2011 iMac) - Ask Different
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
5K iMac vs. iMac Pro: The pro's silent fans made a fan out of me - MacDailyNews