Replace the power supply in your Mac Pro (2019)

Learn how to remove and replace the power supply in your Mac Pro.

If you need to order a replacement power supply, contact Apple

Check required tools

  • Torx T8 screwdriver
  • Phillips #1 screwdriver

Remove the housing

  1. Shut down your Mac Pro.
  2. Wait approximately 5-10 minutes for the computer to cool down.
  3. Unplug all cables except the power cord from your Mac Pro.
  4. Touch the metal housing on the outside of the Mac Pro to discharge any static electricity, then unplug the power cord.
    Always discharge static before you touch parts or install components inside your Mac Pro. To avoid generating static, don’t move around the room until you finish installing the power supply and slide the housing back onto the computer.
  5. Flip the top latch up, then twist left to unlock the housing.
  6. Lift the housing straight up and off of Mac Pro. Carefully set it aside.
    Mac Pro won't turn on when its cover is removed.

Remove the power supply

  1. On the left and right clamp plates, unscrew all six Phillips #1 screws, then remove both clamp plates.
    The screws are captive and stay attached to the clamp plate.
  2. Remove one T8 screw from the power supply grounding bracket.
  3. Grip both sides of the power supply and pull it out. If necessary, remove the MPX module above the power supply for easier access to the power supply.  

Install the new power supply

  1. Insert the new power supply in the bottom slot.
  2. Push firmly and evenly until the power supply is fully seated. If you removed any MPX modules, reinstall them. 
  3. Reinstall the T8 screw back into the power supply grounding bracket.
  4. Reattach the left and right clamp plates and fully tighten the six Phillips #1 screws.

Reinstall the housing

  1. Carefully lower the housing over the Mac Pro, being careful not to touch any of the circuit boards.
  2. After the housing is fully seated, twist the top latch right and flip it down to lock it.
    Top: Locked position (dots match)
    Bottom: Unlocked position (dots do not match)
  3. Connect the power cord, display, and any other peripherals. 

Learn more

If you received a replacement part from Apple, follow the steps to send your original part back to Apple.

Published Date: