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Hello, I am planning on replacing my old hard drive in my 2010 27" iMac with an SSD. I have found instructions on how to do this, however, there are a few things I would like to get clarified before I start. My model of iMac should include a spot to install the new drive without having to put a mount in correct? My old hard drive is basically dead. My computer gets stuck booting up. Will I still be able to leave my old hard drive in and use my SSD as my main drive without any problems or will I need to completely remove my old hard drive to prevent my computer from trying to ever use it? Thank you, Jacob
You have a few possible ways to go here. If your HD is dying then I would recommend just getting a SSHD hybrid drive like: Seagate FireCuda 3.5" SSHD. It would be the cheapest way to gain speed and still have lots of storage. Here’s the IFIXIT guide you’ll need to follow: iMac Intel 27" EMC 2390 Hard Drive Replacement If you really want a dual drive setup if you think you can get your HD going again. Then you could go with a smaller sized SSD (128 ~ 256 GB). Unlike the HD there is no frame to support it as you’re gluing the drive the the case using mounting foam tape. Here’s the IFIXIT guide you’ll need to follow: Installing iMac Intel 27" EMC 2390 Dual HDD or SSD Drive. You’ll need this set of parts: iMac Intel 27" (Mid 2010) Dual Hard Drive Kit. Your system is only a SATA II (3.0 Gb’s) so you’ll need to review the drives spec sheet for the drive you want. As an example the Samsung SSD 850 EVO. You’ll see this line: Interface - SATA 6Gb/s (compatible with SATA 3Gb/s and SATA 1.5Gb/s)
