this could be the most incorrect mac rumors post ever. If you can't hear the drive spinning but you can hear the beep, it means you really shouldn't be using that drive. If it fixes it, then i am right, otherwise, your hard disk will probably overheat and dieĪnother quick way to rule out this crazy but true post of mine is to pick up your computer while it is sleeping and and making that beep sound and stick it to your ear to listen for the hard drive spinning Recommend restoring to a conventional hard disk to rule this outĪ mechanical 7200 rpm would be okay to try out Mac goes to sleep, lowers power to SSHD and the SSHD starts chirping to tell you its not getting enough power. You can release the keys after the second startup sound or once the Apple logo appears and disappears for the second time. I have macbook pro A1278 it was a keyboard problem and I already fix it but after 1 week my client is back and complaining the macbook is not turning on and I notice I heared 3 beeps when we put charger or pressing the power button. Immediately press and hold these four keys as it is booting up: Option + Command () + P + R. Other then SSHD i Never ever heard of a mac beeping when it is asleep. Hello, Newbie here I am new on macbook repair.I am a youtube follower sir Louis Rossman channel. I have 4 seagate hybrid drives and i am well acquainted with the beeping sound The beeping is a warning from the hard disk that it is not getting enough power.
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