How to replace the Fusion Drive in an iMac
Replacing the Fusion Drive with both a SSD and an harddisk
July 30, 2020 - Willem L. Middelkoop
This month I did an attempt to upgrade my 27-inch iMac 5K. I wanted to replace the fusion drive with a SSD and a large hardisk. In addition I decided this was a good time to upgrade the RAM memory as well, maxing it out at 64GB. I was on a mission to create the ultimate iMac, but things didn't go to plan!
Continue reading![Another box with parts - this time from Ireland](/blog/2020-07-30_upgrading-a-27-inch-imac-5k-to-14-terabytes/images/i_40_Another-box-with-parts-this-time-from-Ireland_500px.jpg)
![The Power Supply should be handled with extra care, don't touch any solder joint as the capacitors can retain some charge after disconnecting the power cable!](/blog/2020-07-30_upgrading-a-27-inch-imac-5k-to-14-terabytes/images/i_21_The-Power-Supply-should-be-handled-with-extra-care-don-t-touch-any-solder-joint-as-the-capacitors-ca_500px.jpg)
![](/blog/2020-07-30_upgrading-a-27-inch-imac-5k-to-14-terabytes/images/i_48_500px.png)
![Disconnecting the iSight's (Applespeak for webcam) USB cable](/blog/2020-07-30_upgrading-a-27-inch-imac-5k-to-14-terabytes/images/i_25_Disconnecting-the-iSight-s-Applespeak-for-webcam-USB-cable_500px.jpg)
![LUCKY ME! Found a perfectly matching replacement logic board - in new old stock condition!](/blog/2020-07-30_upgrading-a-27-inch-imac-5k-to-14-terabytes/images/i_39_LUCKY-ME-Found-a-perfectly-matching-replacement-logic-board-in-new-old-stock-condition_500px.jpg)
![iMac ad - note the text emphasising to get you online in 10 minutes](/blog/2020-07-30_upgrading-a-27-inch-imac-5k-to-14-terabytes/images/i_01_iMac-ad-note-the-text-emphasising-to-get-you-online-in-10-minutes_500px.jpg)