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. 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. You may encounter the MacBook beeping 3 times alternating between long and short sounds. Thus, the failure of the device to complete an integrity check triggers the beeps. This component could be damaged or out of place. 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. A 3-beep sound within a 5-second interval proves a RAM-related issue within your MacBook Air or MacBook Pro. 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. Voxeldance Tango Neptune 2&2D&2S Neptune X Neptune 3. 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? Why MacBook beeping 3 times and won’t startup?.
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