iMac Fans Running Constantly After Hard Drive Replacement
How to Upgrade the Main Drive in a 27-inch iMac Late 2009 (Updated) - YouTube
iMac Intel 21.5" EMC 2428 Hard Drive Fan Replacement - iFixit Repair Guide
Amazon.com: DBTLAP Laptop CPU Fan Compatible for Apple iMac A1312 27" Hard Disk Drive 610-0041 069-3744 922-9152 Compatible for Delta BFB0612HB-HM01 HDD Cooling : Electronics
iMac Intel 21.5" EMC 2308 Hard Drive Fan Replacement - iFixit Repair Guide
Apple iMac 27" A1312 Late 2009 HDD Hard Drive Cooling Fan 610-0041 BFB0612HB 640746726392 | eBay
Diagnosing iMac Fan Speed Issues After Upgrading Hard Drive
iMac Intel 21.5" (Late 2009-Mid 2011) Hard Drive Fan - iFixit Store
20 iMac HDD Fan Control Alternatives – Top Best Alternatives
iMac Intel 21.5" EMC 2428 Hard Drive Fan Replacement - iFixit Repair Guide
Installing additional SSD in Mid-2010 27" iMac
Needed to make a mid-2011 iMac HDD fan shut up, while using a replacement drive. Used a couple of resistors to approximate a thermal diode constantly at 37 degrees C. : r/techsupportmacgyver