Chosen Solution
Hello. I have a 21.5" mid 2011 iMac with a conventional hard disk that has an awful performance. Before looking for a whole new computer, I’d like to try a SSD install. Not as a second unit. Just remove the actual one and install a SSD one. I found a guide to change the hard disk, so I hope steps are similar. What should I get for that change?
Here’s how to change the drive: iMac Intel 21.5" EMC 2428 Hard Drive Replacement You’re going to have to address the hard drive thermal sensor issue and go with a 3.5" to 2.5" adapter. Doing research on that now. I will have to wait a while as the OWC site is having problems right now. UPDATE Here’s how to do it when adding a second drive: Installing iMac Intel 21.5" EMC 2428 Dual Drive Kit
@diegof - Here’s the IFIXIT guide you’ll need to follow: Installing iMac Intel 21.5" EMC 2428 Dual Hard Drive Kit Here were using a 2.5" SSD. This is the needed parts: iMac Intel 21.5" Mid 2011 Dual Hard Drive Kit w/needed tools as for the SSD I would go with a Samsung 850 EVO a 250 or 500 GB should do. Once you install it use your current HD to prep & install the OS (you’ll want to make a new user account thats different than yours). Once the OS is installed quit the installer and apply any needed OS updates. Then run Migration Assistant app to copy over your Apps to the SSD and the user accounts and make sure your SSD is the startup drive in your Prefs. Thats it! Done.
