How to Adjust Mac Fan Speed Manually with Macs Fan Control | OSXDaily
Hard drive fan noise. iMac mid 2010. I tried to isolate the sound the best I could. : r/applehelp
Mid 2011 imac 21.5 inch EMC 2428. Disassembled, cleaned, repasted like normal but now only indicator 1 and 2 on and there's the startup chime. Read description/comment please : r/mac
How to manually set your Mac's cooling fan speeds
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Apple iMac 27" A1312 2009, 2010, 2011 Optical Drive Fan - BFB0812HD 610-0035 | eBay
Further Explained: Apple's iMac 2011 Model Hard Drive 'Restrictions'
Macs Fan Control
How to properly set SSD Fan Control on iM… - Apple Community
OWC In-Line Digital Thermal Sensor HDD Upgrade Cable for iMac 2011
Replacement CPU Fan Cooling Fan 922-9385 For Apple iMac 21.5" (A1311) 2010 2011 889044050642 | eBay
iMac 21.5 2011 fans at full speed after adding an SSD. | MacRumors Forums
2011 27" iMac SSD upgrade + fan speed - Whats the current consensus? | MacRumors Forums