I get a frozen screen saver which is normal, while the progress bar finds it feet back on power. My Macbook Pro battery had run down (it does quite a bit) so I rebooted with the power inserted. Intel Mac :: Turns On But Just Beeps Three Times Stops Beeps More Times And Won't Start Up Jun 16, 2012 I waited ten minutes and did some quick research on my ipod. I pressed the power button until it was quiet.

Talk about a rude awakening! The screen was dark and did not respond to keys or mouse clicks. I keep my laptop running most of the time, and at 4 o'clock this morning it started beeping at me. If you do not want to check it yourself, you can take the computer to the Apple store to have it fixed. 3 beeps usually means that memory modules may not be seated properly or not working properly. If you meet this last condition, either deinstall Google Drive or upgrade your Macintosh operating system. A last dark horse that could cause this triple beeping is a strange bug while running Google Drive software on a Macintosh running 10.6 (Snow Leopard).

A looping three beeps in between three seconds during startup is your iMac’s way of telling you that the operating system you’re trying to boot into is incompatible with your Mac hardware.

Macbook pro 3 beeps no boot