2010 iMac 27" - replace optical drive with slot fan to quietly lower temps? | tonymacx86.com
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
2011 27" iMac SSD upgrade + fan speed - Whats the current consensus? | MacRumors Forums
OWC DIY Kit for all Apple iMac 2011 for replacing the main hard drive
OWC In-line Digital Thermal Sensor for iMac Late 2009 - Mid 2010 Hard Drive Upgrade
2011 27" iMac SSD upgrade + fan speed - Whats the current consensus? | MacRumors Forums