What does 3 beeps mean on a MacBook Pro?

If your Macbook Air or Macbook Pro computer is broadcasting 3 successive beeps at intervals of approximately five seconds, it means that RAM memory did not pass the data integrity check. … So check this data. If the problem persists, visit an Apple professional immediately or contact Apple Support directly.

How do I stop my MacBook from beeping 3 times?

  1. Shut down the computer.
  2. Locate the following keys on the keyboard: Command, Option, P, and R. …
  3. Press and hold the Command-Option-P-R keys.
  4. Turn on the computer.
  5. Hold the keys down until the computer restarts and you hear the startup sound for the second time.
  6. Release the keys.

How do you fix a computer that has 3 beeps?

To resolve this problem, check the following:
  1. Make sure you properly install the memory modules in the DIMM slots and lock the latches in place.
  2. Make sure you use supported memory for your board. Check the speed and size of your memory.
  3. Check that the memory modules aren’t defective:

Why is my IMAC beeping 3 times?

If your Mac is sounding 3 successive beeps with a five second pause in between, it means the RAM in your computer has not passed the data integrity test run at startup. If you recently installed OWC RAM, please contact our Technical Support team.

Why does my computer beep 3 times?

Three beeps that repeat after a pause and occur when you power on your computer indicate a problem with the system memory. Three beeps that play and then stop as the computer starts successfully mean that the BIOS was restored.

How do you reset RAM on a MacBook Pro?

Shut down your Mac, then turn it on and immediately press and hold these four keys together: Option, Command, P, and R. You can release the keys after about 20 seconds, during which your Mac might appear to restart. On Mac computers that play a startup sound, you can release the keys after the second startup sound.

Why is my MacBook pro making a beeping noise?

Your MacBook Air may make a beeping noise due to a loud or non-functioning fan. The fan may be loud or non-functioning due to a build up of hair or dust or because of a failing component. In some cases, the MacBook Air’s fan may continue to make beeping noises despite being clean and fully functional.

Why does my MacBook Pro beep randomly?

When you start your Mac, it will automatically run system diagnostics. If you hear this pattern of beeping, it means that the Mac could not find any RAM installed. Either your computer’s memory was removed or something is interfering with the system checkup.

Why is my Mac laptop beeping?

The beeping can mean a hard drive failure or unseated RAM. If you have tried all other troubleshooting steps and the beeping still occurs, take the MacBook to an Apple Store or contact support if there are no stores nearby. Taking apart your laptop to attempt to fix it yourself may void your warranty.

How do I stop my MacBook Pro from beeping?

Press and hold the Command-Option-P-R keys. You must press this key combination before the gray screen appears. Hold the keys down until the computer restarts and you hear the startup sound for the second time. Release the keys.

Why is my Mac screen black and beeping?

How do I fix the RAM on my Mac?

How to clear memory on a Mac
  1. Restart your Mac. Restarting your computer is the simplest way to free up RAM. …
  2. Update macOS. …
  3. Check Activity Monitor. …
  4. Close suspect applications. …
  5. Check CPU usage. …
  6. Check the printer. …
  7. Purge RAM in Terminal.