Hold the keys down until the computer restarts and you hear the startup sound for the second time.Ħ. Press and hold the Command-Option-P-R keys.ĥ. You will need to hold these keys down simultaneously in step 4.ģ. Locate the following keys on the keyboard: Command, Option, P, and R. I removed all but one of the 4 ram sticks, and rebooted using the Option key to make it boot into Recovery. This resulted continues three beeps and a five second pause/repeat, a gray screen, then a black screen with beeping. Hold these keys and the power button for 10 seconds.ģ If you have a MacBook Pro with Touch ID, the Touch ID button is also the power button.ĥ Press the power button again to turn on your Mac. I had a copy of Snow Leopard 10.6.3 install DVD in my DVD drive and instucted my iMac to boot from the DVD. How to fix MacBook beeping 3 times Try resetting the SMC Ģ After your Mac shuts down, press Shift-Control-Option on the left side of the built-in keyboard, then press the power button at the same time. If the problem persists, visit an Apple professional immediately or contact Apple Support directly. You may have recently replaced or just upgraded the RAM memory on your MacBook Air or MacBook Pro computer and it was not installed properly. 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. The beeping indicates that there is an issue with your notebook’s RAM. Why MacBook beeping 3 times and won’t startup?
You can also try to re-insert original RAM if the.
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