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How to replace the main logic board in a 27-inch iMac 5K

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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It contained the 64GB RAM and the 2TB PCIe Aura Pro X2 for iMac
It contained the 64GB RAM and the 2TB PCIe Aura Pro X2 for iMac
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!
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
Removing the heatsink from the logic board
Removing the heatsink from the logic board
It contained a new logic board, but without a processor
It contained a new logic board, but without a processor
An average fly is bigger than most screws inside the iMac
An average fly is bigger than most screws inside the iMac

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