A Full Record of Replacing the RAM in a 2018 Mac mini

Before teardown

1. Teardown

1. Rear Cover

Remove the six screws from the rear cover and open it slowly. Be careful: there is a Wi-Fi antenna cable connecting the cover to the main unit. Disconnect that cable before fully removing the cover.

Note: after removing the single screw on the motherboard side, the antenna cable can be detached with a little force.

Wi-Fi antenna on the rear cover

Rear cover removed

2. Cooling Fan

Remove the four screws around the fan. There is also a cable between the fan and the motherboard, and it can be disconnected with a little force.

Remove the fan

3. Free the Motherboard from the Chassis

First remove the two large black screws on the motherboard, then disconnect the two cables above them.

Note: use a gentle hand on the smaller connector, but the larger power cable definitely takes more force.

Release the motherboard from the chassis

4. Separate the Board Assembly from the Shell

Push the internals out

Place both thumbs against the heatsink area and push outward with a bit of force. That will slide the motherboard assembly out of the chassis.

Make sure those two cables are disconnected before you do this.

Board assembly out of the chassis

5. Replace the RAM

Remove the four screws on the white metal shield, lift it up, and the memory slots will be exposed.

Motherboard view

Replacing the RAM

Push the two retention clips inside the red box outward and the RAM will pop up. Then swap in the new modules.

2. Reassembly

Put everything back together in reverse order.

32 GB memory installed

Then open a few apps and enjoy the upgrade.

Memory usage after the upgrade

3. A Small Mishap

1. Guess Why I Had to Remove This Part

What had to come apart

While I was reinstalling the metal RAM shield, one of the screws slipped under this part, which I think is the speaker. Since there is a magnet inside, the screw would not shake loose at all, so I had no choice but to disassemble it too.

The part I had to remove

2. The RAM Was Not Seated Properly

On the first boot, the RAM was not installed correctly and only one module was detected, so I had to tear it down and reseat the memory again.

Only 16 GB detected on the first attempt
转载请保留本文转载地址,著作权归作者所有