crwdns2890332:0Installing SSD in iMac Mid 2007crwdne2890332:0I used the Newer Tech AdaptaDrive 3.5"–2.5" adapter and it worked flawlessly for mounting the much smaller Samsung SSD into my early 2008 iMac's drive mount.
crwdns2890332:0Replace HHD with SSD drivecrwdne2890332:0I believe the old style drive temperature sensor is available for purchase from various sites around the web. I have an early 2008 iMac that has the old style sensor, so I didn't have to deal with this particular issue. However, if you can solve the temperature sensor issue, I found that mounting a 2.5" SSD into the iMac with the Newer Tech AdaptaDrive 3.5"–2.5" adapter worked flawlessly.
crwdns2890332:02.5 SSD or 3.5 SSD?crwdne2890332:0I used a Newer Tech AdaptaDrive 3.5"–2.5" adapter to mount a 2.5" SSD in my early 2008 iMac. It worked flawlessly.