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Use this guide to replace the combination I/O (input/output) board in your Mac Studio (2023).
Four of the Mac Studio's ports are attached to the I/O board:
- Two USB‑A ports
- One HDMI port
- One 3.5 mm headphone jack
If any of these ports are broken, you'll need to replace the entire I/O board.
If you're having connection issues with your HDMI port, you can't connect devices to the USB ports, or your audio is fuzzy, one-sided, or nonexistent, it may be time to replace the I/O board.
Before starting this repair, read through Apple's troubleshooting article and try the software and cleaning solutions that don't require taking your device apart. Make sure to test your cables with a different device to confirm the issue is with one of the ports, and not the cables themselves.
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Completely shut down your Mac Studio.
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Unplug all cables from your device.
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Flip your Mac Studio over and lay it down so the bottom faces up and the SD card slot and two front USB‑C ports are facing you.
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Heat an iOpener and lay it over one of the bottom cover screws for two minutes to soften the adhesive near the screw—this is where you'll insert a spudger in the next step.
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Insert the point of a spudger under the pad's inner edge, near the screw you applied heat to in the previous step.
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Use the spudger to lift the pad and separate the adhesive.
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Insert the flat end of a spudger under the pad.
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Slide the spudger under the entire pad to separate the remaining adhesive.
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Remove the bottom cover screw pad.
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If the adhesive strips are still sticky, you can reuse them.
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Use the flat end of a spudger and your fingers to scrape up and remove the old adhesive strips.
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Use isopropyl alcohol and a microfiber cloth to remove the old adhesive residue.
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Apply the new adhesive strips to the bottom cover and remove their liners.
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Firmly press the bottom cover screw pad into its recess to secure it.
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Use a T10 Torx screwdriver to remove the four 8 mm‑long screws securing the bottom cover.
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Insert the point of a spudger in one of the bottom cover's ventilation holes and lift the cover until you can grab it with your fingers.
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Remove the bottom cover.
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Use a T10 Torx screwdriver to remove the six screws securing the power supply:
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Four 6 mm‑long screws
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Two 7 mm‑long screws with washers
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Flip your Mac Studio around so the rear ports are facing you.
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Firmly hold the power supply with one hand and lift up the edge near the power cord port.
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With your free hand, pinch the head of the power cord port connector to unclip it and pull straight down to disconnect the cable.
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Carefully tilt the power supply away from the power cord port so it's at a 90-degree angle.
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Keep the power supply tilted up for the next step.
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With your free hand, pinch the head of the power supply connector to unclip it and pull straight away from the socket to disconnect the cable.
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Remove the power supply.
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Flip your Mac Studio around so the SD card reader and two front USB‑C ports are facing you.
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Use a T6 Torx screwdriver to remove the eight screws securing the internal frame:
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Seven 5 mm‑long screws
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One 4 mm‑long screw
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Slowly lift the internal frame straight up and remove it, making sure no cables get snagged.
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Use a T5 Torx screwdriver to remove the two 12 mm‑long screws securing the speaker.
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Lift the inner edge of the speaker and stand it upright so you can access its connector on the logic board.
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Insert the point of a spudger under the speaker connector's plastic head and carefully lift it straight up and out of its socket.
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Remove the speaker.
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Use a T3 Torx screwdriver to remove the two 2 mm‑long screws securing the I/O board cable cover.
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Use a T8 Torx screwdriver to remove the standoff screw just to the right of the cover.
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Use tweezers or your fingers to remove the I/O board cable cover.
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Use a spudger to pry up and disconnect both of the I/O board's press connectors.
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Use the point of a spudger or a clean fingernail to flip up the hinged locking flap on the power button cable ZIF connector, located on the outer edge of the I/O board.
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Use tweezers to gently pull the cable straight out of its socket.
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Carefully stand up your Mac Studio so the SD card reader and two front USB-C ports are facing up.
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Use a T4 Torx screwdriver to remove the two 15.5 mm‑long screws securing the outer edge of the I/O board.
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Use a T6 Torx screwdriver to remove the two 20 mm‑long screws securing the inner edge of the I/O board.
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Partially tighten the four screws securing the board.
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Lay your Mac Studio down and plug a cable into one of the ports to ensure proper fit and alignment, adjusting the port as necessary—the cable should be easy to insert and remove.
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With the cable plugged in and the board in position, fully tighten all four screws.
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Unplug all cables before continuing.
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Lift the I/O board straight up and out of its recess to remove it.
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Gently set the I/O board down on your workspace so the ports are facing up.
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Use a T3 Torx screwdriver to remove the two 2 mm‑long screws securing the cable cover.
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Use tweezers or your fingers to remove the cover.
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Use a spudger to pry up and disconnect one of the I/O board's cables.
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Remove the cable.
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Repeat the previous step to remove the remaining cable.
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To reassemble your device, follow these instructions in reverse order.
Take your e-waste to an R2 or e-Stewards certified recycler.
Repair didn’t go as planned? Try some basic troubleshooting, or ask our Answers community for help.
To reassemble your device, follow these instructions in reverse order.
Take your e-waste to an R2 or e-Stewards certified recycler.
Repair didn’t go as planned? Try some basic troubleshooting, or ask our Answers community for help.
