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How to upgrade an iMac with retina display

Replacing the Fusion Drive with both a SSD and an harddisk

July 30, 2020 -

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!

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Decoupling the fusion drive: separating the conventional harddisk from the PCIe SSD
Decoupling the fusion drive: separating the conventional harddisk from the PCIe SSD
YES, it works! The new logic board accepted keyboard input and allowed me to proceed with macOS installation
YES, it works! The new logic board accepted keyboard input and allowed me to proceed with macOS installation
LUCKY ME! Found a perfectly matching replacement logic board - in new old stock condition!
LUCKY ME! Found a perfectly matching replacement logic board - in new old stock condition!
Removing the main ventilator shaft
Removing the main ventilator shaft
iMac G3 (1998)
iMac G3 (1998)
The RAM hatch pops open using the secret button inside the power connector
The RAM hatch pops open using the secret button inside the power connector

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