I've tried looking this particular question on forums, to no avail. I've got a mid-2010 (11,3) 27" iMac. I want to keep the current HDD + optical bay where they are. I want to simply add an SSD by using the 3rd sata port, then direct the boot to this SSD. Therefore I avoid touching the temp sensor on the main HDD, which stays plugged in as it is. That's the theory - does anybody know if this will work?? I'm trying to avoid the full fan speed issue that accompanies me swapping the hdd for the ssd. Any help / opinions will help a lot - thanks so much!