Select Page

Troubleshooting MagSafe and I/O Board Issues – Updated 2023


Have you encountered problems with your MagSafe or I/O board on your Apple Mac? This guide, updated for 2023, will help you diagnose and address issues with these components.

It’s important to address these problems promptly, as they can lead to a range of issues, from a non-functioning Mac to potential damage.


Here are some common reasons why your Magsafe or I/O board might not be working:

Liquid Damage:

Liquid spills on your Mac can cause damage to the Magsafe or I/O board, disrupting their functionality.             

Lightning Strikes:

A lightning strike near your Mac can send electrical surges that damage the Magsafe or I/O board.

Load Shedding:

Frequent power outages or load shedding can harm your Mac’s internal components, including the Magsafe or I/O board.

Faulty Apple Charger:

A malfunctioning Apple charger can lead to issues with the Magsafe or I/O board.

Non-Apple Chargers:

Using non-Apple chargers that deliver incorrect power levels can also affect the functionality of these boards.


Identifying the precise cause of a damaged Magsafe or I/O board can be challenging. If you’re unsure, it’s advisable to consult an Apple specialist for assistance.

However, there are common signs to look out for:

  • Your Mac doesn’t turn on.
  • The Mac powers on, but the screen remains black.
  • The Mac starts booting up but shuts down halfway through.
  • The Mac stops charging.
  • You can hear internal components moving, but the screen stays blank.
  • There are black marks inside the MagSafe port.


If you suspect an issue with your Mac’s Magsafe or I/O board, here’s what you can do:

Check Charger Cable:

Disconnect your charger cable and check the charging indicator. A green or orange light may indicate charger issues. Inspect the Magsafe port for black marks, which could suggest a burned port.

Test with Multiple Chargers:

Try different chargers to ensure there’s power going to the board.

Reset SMC and PRAM:

Resetting the System Management Controller (SMC) and Parameter RAM (PRAM) can sometimes resolve issues. Refer to ZA Support’s guide on YouTube for step-by-step instructions.

Consider RAM Removal (if applicable):

If your Mac allows for Apple RAM removal, cautiously remove it and see if the Mac powers on. Please note that improper RAM removal can damage the Mac, so be cautious if you’re not experienced.

If these steps don’t resolve the problem, there may be multiple factors contributing to the Magsafe or I/O board malfunction.

If the Magsafe indicator light is orange, and your Mac still doesn’t turn on, it’s possible that the board has failed entirely. In such cases, it’s recommended to seek professional assistance to diagnose and repair the issue.

Don’t let Magsafe or I/O board problems disrupt your Mac experience. Follow these troubleshooting steps to pinpoint and resolve the issue, ensuring your Mac runs smoothly once again.

As you can see there are a lot of factors that can cause your Mac to not power on. If you have tried our Mac not powering on expert guide it might be a consideration to bring the Mac in for a diagnostic. If you need to book your Mac in for an Apple diagnostic click here.


If you have your serial number it increases our response time. There's a link at the bottom of this form to help you find your serial number if you are unsure where to locate it.