Mac Pro (2023) Space Frame Bottom Plate

Before You Begin

Remove the following parts before you begin:

Tools

  • 3/8-inch ratcheting socket wrench

  • 3/8-inch to 5/16-inch adapter

  • Torx T55 security bit

Note: You can remove the logic board with the speaker and SSD modules installed.

Removal

  1. Place the space frame on a clean, flat surface with the space frame bottom plate facing up.

  2. Attach the 3/8-inch to 5/16-inch adapter to the 3/8-inch ratcheting socket wrench and Torx T55 security bit.

  3. Use the wrench, adapter, and Torx T55 security bit to remove the four T55 security screws (923-03414) from the bottom plate. Then lift the bottom plate off the space frame bars.

    • Note: If you need help holding the space frame in place while removing the screws, have someone assist you.

Reassembly

  1. Align the four holes on the bottom plate with the ends of the space frame bars.

    • Important: The input/output (I/O) board opening (1) on the space frame top plate should be opposite the PCI Express (PCIe) slots frame mount plate (2) on the bottom plate.

  2. Use the wrench, adapter, and Torx T55 security bit to partially reinstall the four T55 security screws (923-03414) into the bottom plate.

    • Note: If you need help holding the space frame in place while reinstalling the screws, have someone assist you.

  3. Place the space frame on a clean, flat surface with the top plate facing up.

  4. Temporarily reinstall the housing over the space frame.

  5. Place the space frame on a clean, flat surface with the bottom plate facing up. Ensure that the gap between the housing and the bottom plate is equal.

  6. If the gap is equal, skip to step 8. If the gap isn’t equal, place the space frame on a clean, flat surface with the top plate facing up. Remove the housing. Then check the four T55 security screws on the bottom plate to ensure that they’re only partially installed.

  7. Repeat steps 3 through 6. Then continue to step 8.

  8. Use the wrench, adapter, and Torx T55 security bit to fully reinstall the four T55 security screws into the bottom plate.

    • Caution: Ensure that you don’t scratch the housing as you tighten the screws.

  9. Place the space frame on a clean, flat surface with the top plate facing up. Then remove the housing.

Reinstall the following parts to complete reassembly:

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