Introduction

Learn how to upgrade or replace the memory in your 2018 Mac mini with this RAM replacement guide. The mini can support up to 64 GB of RAM, using any combination of 8 GB, 16 GB, or 32 GB DDR4-2666 SODIMM RAM modules.

Video Overview

  1. Power off and unplug your Mac mini before you begin.
    • Power off and unplug your Mac mini before you begin.

    • Use an opening tool to pry the bottom cover up off of the Mac mini.

  2. Lift and remove the bottom cover. To reinstall the cover:
    • Lift and remove the bottom cover.

    • To reinstall the cover:

    • Align it carefully so that the words "Mac mini" can be read when the ports are facing you.

    • Then, press down on the cover to snap its three hidden clips into place.

    • Remove six TR6 Torx security screws securing the antenna plate, of the following lengths:

    • Three 4.1 mm screws

    • Three 1.8 mm screws

    • Throughout this repair, keep track of each screw and make sure it goes back exactly where it came from to avoid damaging your Mac.

  3. Do not completely remove the antenna plate; it is still connected to the Mac mini by an antenna cable. With the Mac mini's ports facing you, carefully lift the antenna plate and slide it about an inch to the right.
    • Do not completely remove the antenna plate; it is still connected to the Mac mini by an antenna cable.

    • With the Mac mini's ports facing you, carefully lift the antenna plate and slide it about an inch to the right.

  4. Use a T6 Torx driver to remove the 2.8 mm screw securing the antenna cable to the Mac mini's logic board. Use a T6 Torx driver to remove the 2.8 mm screw securing the antenna cable to the Mac mini's logic board.
    • Use a T6 Torx driver to remove the 2.8 mm screw securing the antenna cable to the Mac mini's logic board.

  5. The antenna cable connector and socket are fragile. Use the point of a spudger or fine tweezers to gently pry the antenna cable connector straight up off its socket on the logic board. To reconnect the cable, use tweezers to position it carefully over its socket on the logic board, and then press it straight down until it snaps into place.
    • The antenna cable connector and socket are fragile.

    • Use the point of a spudger or fine tweezers to gently pry the antenna cable connector straight up off its socket on the logic board.

    • To reconnect the cable, use tweezers to position it carefully over its socket on the logic board, and then press it straight down until it snaps into place.

    • If you need more slack in the cable, you can temporarily pry it from the clips securing it to the antenna plate.

  6. Remove the antenna plate from the Mac mini.
    • Remove the antenna plate from the Mac mini.

  7. Use a T6 Torx driver to remove the four 7.2 mm screws securing the fan: Two screws securing the fan to the logic board
    • Use a T6 Torx driver to remove the four 7.2 mm screws securing the fan:

    • Two screws securing the fan to the logic board

    • Two screws securing the fan to the exhaust vent

    • Rubber grommets secure these screws to the fan, so they may not come out completely. Just make sure they are fully loosened.

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  9. Don't try to remove the fan completely in this step—just lift it so you can access the cable underneath. Lift the fan from the flat edge where it meets the exhaust vent, being careful not to strain the fan cable underneath.
    • Don't try to remove the fan completely in this step—just lift it so you can access the cable underneath.

    • Lift the fan from the flat edge where it meets the exhaust vent, being careful not to strain the fan cable underneath.

  10. Grasp the fan cable by all six wires and gently lift to unplug it from the logic board. Grasp the fan cable by all six wires and gently lift to unplug it from the logic board.
    • Grasp the fan cable by all six wires and gently lift to unplug it from the logic board.

  11. Remove the fan.
    • Remove the fan.

  12. Grasp the power supply cable and lift to disconnect it from the logic board, wiggling as needed to loosen it up.
    • Grasp the power supply cable and lift to disconnect it from the logic board, wiggling as needed to loosen it up.

  13. Carefully lift the connector for the LED indicator light straight up to disconnect it from its socket on the logic board. Take care not to pry under the socket, or you may break it off the board.
    • Carefully lift the connector for the LED indicator light straight up to disconnect it from its socket on the logic board.

    • Take care not to pry under the socket, or you may break it off the board.

  14. Use a T10 Torx driver to remove the two 7.5 mm screws securing the logic board. Use a T10 Torx driver to remove the two 7.5 mm screws securing the logic board.
    • Use a T10 Torx driver to remove the two 7.5 mm screws securing the logic board.

  15. In this step, you'll push the logic board free from the clips holding it to the frame. Push only where directed or you may damage the fragile cooling fins. Place a thumb at each end of the exhaust vent, over the fan screw holes. Push firmly in the direction of the ports until the logic board unclips and begins to slide out of the Mac mini.
    • In this step, you'll push the logic board free from the clips holding it to the frame. Push only where directed or you may damage the fragile cooling fins.

    • Place a thumb at each end of the exhaust vent, over the fan screw holes.

    • Push firmly in the direction of the ports until the logic board unclips and begins to slide out of the Mac mini.

  16. Slide the logic board out of the case. When reinstalling the logic board, make sure to hold the thin LED indicator light cable out of the way so it doesn't get damaged.
    • Slide the logic board out of the case.

    • When reinstalling the logic board, make sure to hold the thin LED indicator light cable out of the way so it doesn't get damaged.

  17. Use a T5 Torx driver to remove the four 2.8 mm screws securing the RAM shield.
    • Use a T5 Torx driver to remove the four 2.8 mm screws securing the RAM shield.

  18. Lift the RAM shield and slide it off of the RAM assembly.
    • Lift the RAM shield and slide it off of the RAM assembly.

  19. Two clips secure each RAM module in place, one on each side. Using your fingers, spread the clips away from the RAM module. When released, the RAM modules will pop up at a slight angle.
    • Two clips secure each RAM module in place, one on each side. Using your fingers, spread the clips away from the RAM module.

    • When released, the RAM modules will pop up at a slight angle.

  20. Slide each RAM module straight out to remove it.
    • Slide each RAM module straight out to remove it.

    • When handling the RAM modules, touch only the outside edges. Take care not to touch the gold-colored contact points along the bottom edge.

  21. To install new RAM modules: Make sure the module is oriented correctly and the notch on the bottom is aligned, and then slide it in at about the same angle as you took it out. Press evenly until the gold contacts are no longer visible. Repeat for the second module.
    • To install new RAM modules:

    • Make sure the module is oriented correctly and the notch on the bottom is aligned, and then slide it in at about the same angle as you took it out. Press evenly until the gold contacts are no longer visible.

    • Repeat for the second module.

  22. Finally, press the top edge of each RAM module to swing it down toward the logic board until the retaining clips on each side snap into place. If the rubber guards interfere with the clips, spread the rubber guards away from the RAM with one hand and use the other to angle the RAM modules into place. Then, release the guards. Check the clips and make sure both modules are fully seated and secure.
    • Finally, press the top edge of each RAM module to swing it down toward the logic board until the retaining clips on each side snap into place.

    • If the rubber guards interfere with the clips, spread the rubber guards away from the RAM with one hand and use the other to angle the RAM modules into place. Then, release the guards.

    • Check the clips and make sure both modules are fully seated and secure.

Conclusion

To reassemble your device, follow the above steps in reverse order.

Take your e-waste to an R2 or e-Stewards certified recycler.

Repair didn’t go as planned? Check out our Answers community for troubleshooting help.

126 other people completed this guide.

Rod Bland

Member since: 03/25/2013

2,313 Reputation

1 Guide authored

76 Comments

Thank you so much! I’m curious about CPU. Is it possible to replace it?

cjoonh - Reply

No, the CPU is soldered to the logic board.

Jon Anscher -

Looks like the SSD is replaceable as well. Any idea on what kind of standard it follows?

QiF - Reply

looks like soldered to me. either way, with that T2 chip on board one shall not pass through…

Peter Marencik -

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